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Journal articles on the topic 'Hordeum'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

León, Eduardo, Eusebio López Nieto, Mónica López Martínez, and Antonio J. Pujadas Salvá. "El agregado de Hordeum murinum (Poaceae) en “Flora Iberica”." Acta Botanica Malacitana 39 (December 1, 2014): 311–19. http://dx.doi.org/10.24310/abm.v39i1.2586.

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2

Pelger, Susanne, and Roland Von Bothmer. "Hordein variation in the genus Hordeum as recognized by monoclonal antibodies." Genome 35, no. 2 (1992): 200–207. http://dx.doi.org/10.1139/g92-031.

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The composition of the major storage protein, hordein, in wild barley species has been studied by using gel electrophoresis, Coomassie staining, and immunoblot assays. We have shown earlier that it is possible to obtain cross-reaction outside the cultivated barley, with monoclonal antibodies raised against hordeins from the barley cultivar Bomi. These antibodies have now been used to investigate the hordein composition in all species of the Hordeum genus. The results showed that polypeptides similar to the two major hordein groups of cultivated barley, the B- and C-hordeins, are produced in al

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3

Clark, Melody, Angela Karp, and Simon Archer. "Physical mapping of the B-hordein loci on barley chromosome 5 by in situ hybridization." Genome 32, no. 5 (1989): 925–29. http://dx.doi.org/10.1139/g89-531.

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Physical mapping of the B-hordein genes in barley (Hordeum vulgare cv. Betzes) was achieved by in situ hybridization of a biotin-labelled B-hordein cRNA probe to chromosome spreads. Lines trisomic for chromosome 5 showed up to 3 signals on interphase nuclei, while no more than 2 signals were observed in normal diploids. An enzyme pretreatment, which produced broken cells, increased the frequency of signal detection. A clear signal was observed on 23% of interphase nuclei and 0.025% of metaphase spreads. The B-hordein genes mapped to 46% of the distance from the centromere on the short arm of c

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4

Hickey, Lee T., Wendy Lawson, Greg J. Platz, Mark Dieters, and Jerome Franckowiak. "Origin of leaf rust adult plant resistance gene Rph20 in barley." Genome 55, no. 5 (2012): 396–99. http://dx.doi.org/10.1139/g2012-022.

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Rph20 is the only reported, simply inherited gene conferring moderate to high levels of adult plant resistance (APR) to leaf rust ( Puccinia hordei Otth) in barley ( Hordeum vulgare L.). Key parental genotypes were examined to determine the origin of Rph20 in two-rowed barley. The Dutch cultivar ‘Vada’ (released in the 1950s) and parents, ‘Hordeum laevigatum’ and ‘Gull’ (‘Gold’), along with the related cultivar ‘Emir’ (a derivative of ‘Delta’), were assessed for APR to P. hordei in a disease screening nursery. The marker bPb-0837-PCR, co-located with Rph20 on the short arm of chromosome 5H (5H

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5

Ho, K. M., W. L. Seaman, T. M. Choo, and R. A. Martin. "AC Stephen barley." Canadian Journal of Plant Science 73, no. 4 (1993): 1079–81. http://dx.doi.org/10.4141/cjps93-142.

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AC Stephen is a six-rowed spring feed barley (Hordeum vulgare L.) cultivar developed by the Eastern Canada Barley Breeding Group, Agriculture Canada, and is adapted to Eastern Canada. It was selected from an OAC Kippen/Léger cross. AC Stephen has high yield, good test weight and is resistant to powdery mildew (Erysiphe graminis DC. ex Merat. f. sp. hordei Em. Marchal). Key words: Hordeum vulgare L., six-rowed barley, feed barley, high yield, powdery mildew

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6

Wang, Huan, and Genlou Sun. "Molecular phylogeny and reticulate origins of several American polyploid Hordeum species." Botany 89, no. 6 (2011): 405–15. http://dx.doi.org/10.1139/b11-030.

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The phylogeny of diploid species in the genus Hordeum has been studied intensively. Although the origin of American polyploid species has been analyzed using multiple-copy internal transcribed spacer sequences, the origins of these species in Hordeum remain unclear. The objectives of our study were to elucidate the origins of American polyploid species and to explore phylogenetic relationships of these polyploids to diploid Hordeum and other diploid species in Triticeae using a single copy of a nuclear gene, disrupted meiotic cDNA1 (DMC1). DMC1 sequences from nine Hordeum polyploid species wer

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7

Saraç Sivrikaya, Işıl, Arzu Çelik Oğuz, and Aziz Karakaya. "Foliar diseases of barley and wild barleys in Siirt Province, Türkiye." Bitki Koruma Bülteni 65, no. 1 (2025): 20–26. https://doi.org/10.16955/bitkorb.1438856.

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In May 2023, surveys were conducted in the barley growing areas of the Central district, Baykan, Kurtalan, Pervari, Şirvan, Eruh, and Tillo districts of Siirt province, Türkiye. Leaf diseases occurring in barley and wild barley (Hordeum spontaneum, Hordeum bulbosum) plants were determined. On barley plants, net and spot forms of net blotch disease caused by Pyrenophora teres f. teres, and Pyrenophora teres f. maculata, powdery mildew caused by Blumeria graminis f. sp. hordei, scald caused by Rhynchosporium commune, barley stripe caused by Pyrenophora graminea and spot blotch disease caused by

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8

Echart-Almeida, Cinara, and Suzana Cavalli-Molina. "Hordein variation in Brazilian barley varieties (Hordeum vulgare L.) and wild barley (H. euclaston Steud. and H. stenostachys Godr.)." Genetics and Molecular Biology 23, no. 2 (2000): 425–33. http://dx.doi.org/10.1590/s1415-47572000000200031.

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SDS-PAGE was used to analyze the hordein polypeptide patterns of Brazilian barley varieties (Hordeum vulgare L.) and of two native species of Hordeum from southern Brazil (H. euclaston Steud. and H. stenostachys Godr.). Forty different hordein polypeptide bands with molecular weights ranging from 30 to 94 kDa were found in the seeds of the three species studied. Twelve of the 14 varieties examined showed intravarietal polymorphism. The number of bands ranged from 10 to 17, depending on the variety, and from 3 to 13 among individual seeds, with a total of 26 bands in H. vulgare. Phenograms usin

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9

Baum, Bernard R., and Grant Bailey. "A numerical taxonomic investigation of the Hordeum brevisubulatum aggregate." Canadian Journal of Botany 69, no. 9 (1991): 2011–19. http://dx.doi.org/10.1139/b91-253.

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Measurements of 21 morphometric characters were carried out on 317 specimens; additional observations were made in the field in Turkey, Iran, and the People's Republic of China. Using two nonparametric clustering algorithms and various discriminant analyses followed by bootstrap validation, we infer that the following morphological species are worthy of recognition: Hordeum bogdanii; Hordeum brevisubulatum, including ssp. brevisubulatum and ssp. violaceum; Hordeum turkestanicum; and Hordeum roshevtzii. We found that H. roshevtzii is very close to H. brevisubulatum. A key to species and subspec

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10

Molnar, S. J., and A. McKay. "Restriction fragment analysis of hordein genes in western Canadian two-rowed barleys." Canadian Journal of Plant Science 75, no. 1 (1995): 191–93. http://dx.doi.org/10.4141/cjps95-033.

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Restriction fragment length polymorphisms (RFLP) at the hordein loci were compared with hordein protein patterns for discrimination of barley cultivars. RFLP banding patterns documented extensive polymorphism for B and C hordein gene families in eight closely related western Canadian two-rowed barley cultivars, five parental cultivars and a U.K. cultivar. RFLP results were compared with published protein pattern data on the same cultivars. The power to discriminate cultivars by the two methods is similar. Key words: RFLP, hordein, barley, Hordeum vulgare, cultivar identification

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11

Nishikawa, Tomotaro, Björn Salomon, Takao Komatsuda, Roland von Bothmer, and Koh-ichi Kadowaki. "Molecular phylogeny of the genus Hordeum using three chloroplast DNA sequences." Genome 45, no. 6 (2002): 1157–66. http://dx.doi.org/10.1139/g02-088.

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The genus Hordeum consists of three cytotypes (2x, 4x, and 6x). Its reproductive isolation has been incomplete between closely related species and hence the genetic relationship is reticulate and complex. We used 32 taxa of Hordeum and three chloroplast DNA sequences, matK, atpBrbcL, and trnLtrnF, in the current study. Molecular phylogenetic analysis based on sequence data of the three chloroplast DNA regions clearly demonstrated genetic relationships among taxa and origin of polypoids. The formation of H. secalinum likely involved hybridization between Hordeum marinum subsp. marinum and a E

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12

Pelger, Susanne, Torbjörn Säll, and Bengt O. Bengtsson. "Evolution of Hordein Gene Organization in Three Hordeum Species." Hereditas 119, no. 3 (2004): 219–31. http://dx.doi.org/10.1111/j.1601-5223.1993.00219.x.

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13

Baum, Bernard R., and Douglas A. Johnson. "The South African Hordeum capense is more closely related to some American Hordeum species than to the European Hordeum secalinum: a perspective based on the 5S DNA units (Triticeae: Poaceae)." Canadian Journal of Botany 81, no. 1 (2003): 1–11. http://dx.doi.org/10.1139/b03-001.

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Several authors have proposed that the European Hordeum secalinum and the morphologically similar South African Hordeum capense are conspecific. In this paper we provide evidence that the two species differ in their 5S DNA unit class composition. We also report on the diversity of 5S DNA units in Hordeum muticum, a South American species. When the 5S rDNA unit class composition for these three species is compared with the unit class composition for all Hordeum species thus far investigated, it appears that H. capense is more closely related to the American Hordeum species containing the long Y

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14

Gupta, P. K., and George Fedak. "Preferential intragenomic chromosome pairing in two new diploid intergeneric hybrids between Hordeum and Secale." Genome 29, no. 4 (1987): 594–97. http://dx.doi.org/10.1139/g87-100.

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Intergeneric hybrids involving Hordeum californicum with Secale anatolicum and Hordeum bogdanii with Secale cereale ssp. segetale were produced at a frequency of 1.3% of pollinated florets. Chiasmata frequencies of plants ranged from 0.13 to 0.21 per cell in the first hybrid combination and from 0.30 to 0.68 per cell in the second. The paucity of heteromorphic bivalents indicated absence of a close relationship between parental genomes. The associations in bivalents could be classified into Secale–Secale (R–R), Hordeum–Hordeum (H–H), and Secale–Hordeum (R–H) on the basis of difference in size

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15

Czembor, Jerzy H., Aleksandra Pietrusińska, and Urszula Piechota. "Hordeum bulbosum — jako źródło efektywnej odporności na rdzę karłową jęczmienia." Biuletyn Instytutu Hodowli i Aklimatyzacji Roślin, no. 281 (September 5, 2017): 47–58. http://dx.doi.org/10.37317/biul-2017-0005.

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Rdza karłowa jęczmienia powodowana przez grzyb Puccinia hordei jest chorobą o dużym znaczeniu gospodarczym i ekonomicznym. Jęczmień bulwiasty (Hordeum bulbosum L.) stanowi pulę genetyczną jęczmienia II rzędu. Analizowano podatność/odporność 26 linii rekombinacyjnych otrzymanych w wyniku krzyżowania jęczmienia zwyczajnego (Hordeum vulgare L.) i H. bulbosum na 8 izolatów P. hordei. Otrzymane wyniki pozwoliły na wyodrębnienie 22 linii z genami odporności, w tym 7 linii wysoce odpornych o typie reakcji 0 na wszystkie izolaty. Spośród badanych linii 9 miało więcej niż jeden gen odporności. Dla 2 li

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16

Czembor, Jerzy H., and Elżbieta Czembor. "Odporność Mlo jęczmienia na mączniaka prawdziwego (Blumeria graminis f. sp. hordei)." Biuletyn Instytutu Hodowli i Aklimatyzacji Roślin, no. 230 (December 31, 2003): 375–86. https://doi.org/10.37317/biul-2003-0038.

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Mączniak prawdziwy (powodowany przez Blumeria graminis f. sp. hordei) jest jedną z najważniejszych chorób jęczmienia (Hordeum vulgare L.). Uprawa odpornych odmian jest skuteczną metodą ochrony jęczmienia przed tą chorobą. Dotychczas nie znaleziono izolatów B. graminis f. sp. hordei wirulentnych w stosunku do genu mlo. Odporność Mlo uważana jest za trwałą, ponieważ jest efektywna przez długi okres czasu. W pracy przedstawiono główne zagadnienia związane z trwałością odporności Mlo.

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17

Mahadevappa, Mamatha, Richard A. DeScenzo, and Roger P. Wise. "Recombination of alleles conferring specific resistance to powdery mildew at the Mla locus in barley." Genome 37, no. 3 (1994): 460–68. http://dx.doi.org/10.1139/g94-064.

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In barley (Hordeum vulgare L.), the Mla locus conditions reaction to the powdery mildew fungus Erysiphe graminis f.sp. hordei. Enrichment for genetic recombinants in the Mla region is possible by screening for recombination events between the flanking endosperm storage proteins hordeins C and B. Reciprocal crosses were made between the Franger (C.I. 16151) and Rupee (C.I. 16155) lines carrying the (Mla6 + Mla14) and Mla13 alleles, respectively. Recombinants were identified from F2 segregants by analyzing the extracted hordein polypeptides by sodium dodecyl sulphate – polyacrylamide gel electro

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18

Echart-Almeida, Cinara, and Suzana Cavalli-Molina. "Hordein polypeptide patterns in relation to malting quality in Brazilian barley varieties." Pesquisa Agropecuária Brasileira 36, no. 2 (2001): 211–17. http://dx.doi.org/10.1590/s0100-204x2001000200001.

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Since there is evidence that malting quality is related to the storage protein (hordein) fraction, in the present work the hordein polypeptide patterns from 13 barley (Hordeum vulgare L.) varieties of different malting quality were analysed in order to explore the feasibility of using hordein electrophoresis to assist in the selection of malting barleys. The formation of clusters separating the varieties with higher malting quality from the others with lower quality suggests that there is a relationship between the general hordein polypeptide pattern and malting quality in the varieties analys

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19

Vershinin, A. V., E. A. Salina, V. V. Solovyov, and L. L. Timofeyeva. "Genomic organization, evolution, and structural peculiarities of highly repetitive DNA of Hordeum vulgare." Genome 33, no. 3 (1990): 441–49. http://dx.doi.org/10.1139/g90-066.

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A fraction of highly repeated DNA sequences of Hordeum vulgare has been investigated by cloning 19 separate highly repetitive sequences in the plasmid pBR327. Characteristics studied included genus specificity of isolated sequences, their prevalence, and genome organization. Sequences (pHv7161, pHv7191, pHv7179) have been identified that are the most widespread in the H. vulgare genome and have a complicated arrangement. A tandemly arranged sequence, pHv7141, was also identified. The primary structure of a 999 bp long, BamHI fragment of one of the most widespread sequences, pHv7161, as well as

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20

Baum, Bernard R., and Douglas A. Johnson. "The 5S rRNA gene units in the native New World annual Hordeum species (Triticeae: Poaceae)." Canadian Journal of Botany 78, no. 12 (2000): 1590–602. http://dx.doi.org/10.1139/b00-131.

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We have employed a polymerase chain reaction (PCR) based approach to amplify 5S rDNA sequences from 20 accessions representing five Hordeum species native to the Americas. Sequence analysis of 88 clones revealed three sets of orthologous sequences in Hordeum pusillum Nutt. and two sets in the other four species. The long H1 unit class, previously known in Hordeum bulbosum L., Hordeum marinum L. s.l., Hordeum murinum L. s.l., Hordeum spontaneum Boiss., and Hordeum vulgare L., was found also in Hordeum depressum (Scribner & Smith) Rydberg and in H. pusillum; however, the majority of the sequ

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21

Czembor, Jerzy H., and Elżbieta Czembor. "Odporność Mlo jęczmienia na mączniaka prawdziwego (Blumeria graminis f. sp. hordei)." Biuletyn Instytutu Hodowli i Aklimatyzacji Roślin, no. 230 (December 31, 2003): 335–54. https://doi.org/10.37317/biul-2003-0036.

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Odporność Mlo jęczmienia (Hordeum vulgare L.) odgrywa coraz większą rolę w ochronie jęczmienia przed mączniakiem prawdziwym (Blumeria graminis f. sp. hordei). Odporność ta jest bardzo efektywna i jest powszechnie używana w programach hodowlanych jęczmienia w Europie. W artykule podano najnowsze informacje na temat genetyki, fenotypu, mechanizmu i badań molekularnych nad odpornością Mlo.

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22

van Niekerk, B. D., Z. A. Pretorius, and W. H. P. Boshoff. "Occurrence and Pathogenicity of Puccinia hordei on Barley in South Africa." Plant Disease 85, no. 7 (2001): 713–17. http://dx.doi.org/10.1094/pdis.2001.85.7.713.

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Although leaf rust, caused by Puccinia hordei, is considered an important disease of barley (Hordeum vulgare) and regularly reaches epidemic proportions, pathogenic variability has never been studied in South Africa. From 1994 to 1997, only one pathotype (SAPh 3231) was identified with virulence to resistance genes Rph1, Rph4, Rph5, Rph10, and Rph11. During 1998, a second pathotype (SAPh 7321) was identified, differing from pathotype SAPh 3231 only in virulence to Rph12. Pathotype SAPh 7321 increased rapidly in the area where it was first detected, resulting in localized epidemic outbreaks in

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23

Bothmer, Roland von, Jan Flink, and Tomas Landström. "Meiosis in interspecific Hordeum hybrids. IV. Tetraploid (4x × 4x) hybrids." Genome 30, no. 4 (1988): 479–85. http://dx.doi.org/10.1139/g88-080.

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The meiotic pairing behaviour of 31 interspecific combinations of tetraploid Hordeum species are reported. The autoploid H. bulbosum with the II genomic constitution has no homology to the other species. The constitution of tetraploid H. murinum is not clear, but it is not homologous to other tetraploids. Hordeum marinum is a probable autoploid (XX) but with a very strong genetic regulation of pairing. The X genome is possibly found in H. secalinum and H. capense, both of which also possess the H genome in several diploids. Hordeum fuegianum, H. tetraploidum, H. jubatum, H. brachyantherum, and

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24

Soliman, K., G. Fedak, and R. W. Allard. "Inheritance of organelle DNA in barley and Hordeum × Secale intergeneric hybrids." Genome 29, no. 6 (1987): 867–72. http://dx.doi.org/10.1139/g87-148.

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Four reciprocal hybrids of Hordeum vulgare (deficiens type) and seven nonreciprocal hybrids resulting from controlled pollination between two Hordeum and three Secale species were assayed for variation in their organelle DNA. The chloroplast and mitochondrial DNAs of these hybrids were distinct. Genetic variability exists within species of the genus Hordeum with organelle transmission being strictly maternal. On the other hand, biparental inheritance was obtained in the intergeneric hybrids involving Hordeum and Secale. There was selective transmission of Secale bands and the number of gene co

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25

Jarosz, AM, and JJ Burdon. "Resistance to barley scald (Rhynchosporium secalis) in wild barley grass (Hordeum glaucum and Hordeum leporinum) populations in south-eastern Australia." Australian Journal of Agricultural Research 47, no. 3 (1996): 413. http://dx.doi.org/10.1071/ar9960413.

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Plants from 22 wild barley grass populations, 10 Hordeum glaucum, 11 Hordeum leporinum, and one mixed population, were inoculated with seven isolates of Rhynchosporium secalis originally collected from H. leporinum plants. There was substantial variability for resistance within and among populations from both Hordeurn species, but H. glaucum was: on average more resistant than H. leporlnum. Individual populations often responded differentially to the R. secalis isolates, being resistant to some isolates and susceptible to others. Differential responses were more pronounced among H. glaucum pop

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26

Baum, Bernard R., and Douglas A. Johnson. "A comparison of the 5S rDNA diversity in the Hordeum brachyantherumcalifornicum complex with those of the eastern Asiatic Hordeum roshevitzii and the South American Hordeum cordobense (Triticeae: Poaceae)." Canadian Journal of Botany 80, no. 7 (2002): 752–62. http://dx.doi.org/10.1139/b02-057.

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Amplification of the 5S rDNA gene by the polymerase chain reaction, followed by cloning and sequencing, was used to generate data from 23 seed accessions of Hordeum brachyantherum Nevski, Hordeum californicum Covas et Stebbins, Hordeum cordobense Bothmer, Jacobsen et Nicora, and Hordeum roshevitzii Bowden. One hundred and fourteen clones were analyzed, resulting in the detection of four different 5S DNA unit classes. Three of them, long H1, long H2, and long Y2, had been previously reported. The long H3 class, described for the first time, is present only in H. roshevitzii but can be grouped w

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27

Pelger, Susanne. "Prolamin variation and evolution in Triticeae as recognized by monoclonal antibodies." Genome 36, no. 6 (1993): 1042–48. http://dx.doi.org/10.1139/g93-139.

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The isopropanol-soluble seed storage proteins, prolamins, were studied in 18 different genera of the tribe Triticeae by gel electrophoresis, Coomassie staining, and immunoblot assays. The monoclonal antibodies were originally raised against cultivated barley (Hordeum vulgare L.) hordein, and their reactions had been tested earlier on wild Hordeum species. The study showed that all the investigated Triticeae species produce prolamins and that structural similarities can be found throughout the tribe. The presence of the same antigenic sites in all the species indicates that the polypeptides con

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28

Bustos, Alfredo De, Yolanda Loarce, and Nicolás Jouve. "Species relationships between antifungal chitinase and nuclear rDNA (internal transcribed spacer) sequences in the genus Hordeum." Genome 45, no. 2 (2002): 339–47. http://dx.doi.org/10.1139/g01-158.

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The sequences of the chitinase gene (Chi-26) and the internal transcribed spacer of 18S 5.8S 26S rDNA (ITS1) were determined to analyze the phylogenetic relationships among species representing the four basic genomes of the genus Hordeum. Grouping analysis based on data for Chi-26 gene sequences placed Hordeum secalinum (H genome) near the Hordeum murinum complex (Xu genome), and Hordeum bulbosum distant from the other species that carried the I genome. ITS sequence data showed the expected grouping based on the genome classification of the species studied. Different sequences of ITS were

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29

Wang, Huan, Dongfa Sun, and Genlou Sun. "Molecular phylogeny of diploid Hordeum species and incongruence between chloroplast and nuclear datasets." Genome 54, no. 12 (2011): 986–92. http://dx.doi.org/10.1139/g11-063.

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The phylogeny of diploid Hordeum species has been studied using both chloroplast and nuclear gene sequences. However, the studies of different nuclear datasets of Hordeum species often arrived at similar conclusions, whereas the studies of different chloroplast DNA data generally resulted in inconsistent conclusions. Although the monophyly of the genus is well supported by both morphological and molecular data, the intrageneric phylogeny is still a matter of controversy. To better understand the evolutionary history of Hordeum species, two chloroplast gene loci (trnD-trnT intergenic spacer and

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30

Sun, Genlou, and Xiaodi Zhang. "Origin of the H genome in StH-genomic Elymus species based on the single-copy nuclear gene DMC1." Genome 54, no. 8 (2011): 655–62. http://dx.doi.org/10.1139/g11-036.

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Previous studies have suggested that the H haplome in Elymus could originate from different diploid Hordeum species, however, which diploid species best represent the parental species remains unanswered. The focus of this study seeks to pinpoint the origin of the H genome in Elymus. Allopolyploid Elymus species that contain the StH genome were analyzed together with diploid Hordeum species and a broad sample of diploid genera in the tribe Triticeae using DMC1 sequences. Both parsimony and maximum likelihood analyses well separated the American Hordeum species, except Hordeum brachyantherum sub

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31

Nematiasgarabad, Pershia, Kirtani AP Anamalay, Qing Chong Xiu, Hor Kuan Chan, and Patrick Nwabueze Okechukwu. "Hordeum vulgare (Barley grass) Scavenge Free Radical and Inhibits Formation of Advanced Glycation End Products Formation." NOVEMBER ISSUE 18, no. 6 (2022): 134–40. http://dx.doi.org/10.47836/mjmhs.18.6.19.

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Introduction: Advanced glycation end products (AGEs) formation is due to glycation of lipids, proteins, and nucleic acids. AGEs play a vital role in Diabetes Mellitus (DM) and cardiovascular complications and is enhanced by oxidative stress. Hordeum vulgare (Barley Grass) is a cereal plant of grass family poaceae and has been reported to exhibit antidiabetic and antioxidant characteristics and prevention of cardiovascular disease. Current experiment focused on the evaluation of antioxidant and anti-advanced glycation end products formation effect of Hordeum vulgare water extract. Methods: Free

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32

Kruse, Anthon. "Hordeum × Triticum hybrids." Hereditas 73, no. 1 (2009): 157–61. http://dx.doi.org/10.1111/j.1601-5223.1973.tb01078.x.

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33

Kruse, A. "Hordeum×Agropyrum hybrids." Hereditas 78, no. 2 (2009): 291–94. http://dx.doi.org/10.1111/j.1601-5223.1974.tb01450.x.

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34

Piechota, Urszula, and Paweł Czembor. "Jęczmień i Blumeria graminis. Wprowadzenie do charakterystyki układu gospodarz- patogen." Biuletyn Instytutu Hodowli i Aklimatyzacji Roślin, no. 289 (November 3, 2020): 63–75. http://dx.doi.org/10.37317/biul-2020-0022.

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Jęczmień (Hordeum vulgare L.) jest jednym z najważniejszych gospodarczo zbóż i zajmuje czwarte miejsce pod względem areału upraw na świecie. Mączniak prawdziwy, powodowany przez grzyb patogeniczny Blumeria graminis f. sp. hordei, jest jedną z najważniejszych chorób wpływających negatywnie na ilość i jakość plonu jęczmienia. Ograniczona pula genów odporności wykorzystywanych w odmianach uprawnych stwarza potrzebę poszukiwania i identyfikacji nowych źródeł odporności.

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Czembor, Jerzy H., and Elżbieta Czembor. "Odporność Mlo jęczmienia na mączniaka prawdziwego (Blumeria graminis f. sp. hordei)." Biuletyn Instytutu Hodowli i Aklimatyzacji Roślin, no. 230 (December 31, 2003): 355–74. https://doi.org/10.37317/biul-2003-0037.

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W latach 1990–2000 odporność Mlo jęczmienia (Hordeum vulgare L.) stała się powszechnie używana w europejskich programach hodowli odpornościowej jęczmienia na mączniaka. Dowiedziono, że odporność ta jest wysoce efektywna w ochronie jęczmienia przed porażeniem przez grzyba Blumeria graminis f. sp. hordei. W pracy podano najnowsze informacje na temat źródeł odporności Mlo. W pracy opisano również wykorzystanie odporności Mlo w hodowli nowych odmian jęczmienia.

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Pickering, R., S. Klatte, and R. C. Butler. "Identification of all chromosome arms and their involvement in meiotic homoeologous associations at metaphase I in 2 Hordeum vulgare L. × Hordeum bulbosum L. hybrids." Genome 49, no. 1 (2006): 73–78. http://dx.doi.org/10.1139/g05-071.

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We have identified all Hordeum bulbosum chromosomes in 2 diploid Hordeum vulgare × Hordeum bulbosum hybrids using suitable probes and fluorescence in situ hybridization. Using the parental idiograms allowed us to carry out a full analysis of chromosome associations among all chromosome arms in the hybrids. Association frequencies were generally lower for the short arms than for the long arms. There were also significant differences among the chromosome arms in association frequencies, partly correlated with the absolute length of the chromosome arm, as well as with the frequency of recombinant

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Baum, Bernard R., and L. Grant Bailey. "Key and synopsis of North American Hordeum species." Canadian Journal of Botany 68, no. 11 (1990): 2433–42. http://dx.doi.org/10.1139/b90-309.

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A key to the species of Hordeum in North America is provided. Accompanying the key to Hordeum are accounts of species with the correct name, pertinent synonyms, common names, citations of major works, and notes on taxonomy, habitats, distribution, and variation. Photographs of inflorescences and illustrations of triads of spikelets are provided to facilitate identification. Key words: Hordeum, key to species, North America.

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Patto, M. Carlota Vaz, Aernoudt Aardse, Jaap Buntjer, Diego Rubiales, Antonio Martín, and Rients E. Niks. "Morphology and AFLP markers suggest three Hordeum chilense ecotypes that differ in avoidance to rust fungi." Canadian Journal of Botany 79, no. 2 (2001): 204–13. http://dx.doi.org/10.1139/b00-152.

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In Hordeum chilense Roem. & Schult., a high variation in the level of avoidance to infection of barley leaf rust (Puccinia hordei Otth) occurs. Probably resulting from the properties of the stomata, the rust germ tube overgrows stomata, and the infection process fails in an early stage. In the present study we tested the hypothesis that the avoidance character occurs in certain morphologically and molecularly distinct ecotypes of H. chilense. Eighty-eight H. chilense accessions were inoculated with P. hordei to assess the level of avoidance. The accessions were described for 30 morphologic

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Fedak, George. "Cytogenetics of a hybrid and amphiploid between Hordeum pubiflorum and Secale africanum." Canadian Journal of Genetics and Cytology 27, no. 1 (1985): 1–5. http://dx.doi.org/10.1139/g85-001.

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A low frequency (0.86) of rod bivalents was observed at metaphase I of meiosis in the F1 hybrid between Hordeum pubiflorum 2x and Secale africanum 2x. Seeds were obtained from colchicine-doubled sectors on the hybrid. An average of 2.49′ + 12.77″ per cell characterized meiosis in the amphiploid. The univalent and bivalent frequencies among Hordeum and Secale chromosomes were approximately equal, although there was a higher proportion of ring bivalents formed by the Hordeum chromosomes. Over 90% of the pollen was stainable, but only 40% seed set was obtained on the amphiploid. Although the seed

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Vallélian-Bindschedler, Laurence, Jean-Pierre Métraux, and Patrick Schweizer. "Salicylic Acid Accumulation in Barley Is Pathogen Specific but Not Required for Defense-Gene Activation." Molecular Plant-Microbe Interactions® 11, no. 7 (1998): 702–5. http://dx.doi.org/10.1094/mpmi.1998.11.7.702.

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Barley (Hordeum vulgare) seedlings were inoculated with the biotrophic pathogen Erysiphe graminis f. sp. hordei, the biotrophic nonhost pathogen E. graminis f. sp. tritici, and the necrotrophic nonhost pathogen Pseudomonas syringae pv. syringae. The levels of free salicylic acid and of salicylic-acid conjugates remained low after infection with E. graminis f. sp. hordei or E. graminis f. sp. tritici while they increased after inoculation with P. syringae pv. syringae. Pathogenesis-related proteins PR1, PR3 (chitinase), PR5 (thaumatin-like), and PR9 (peroxidase) accumulated after inoculation wi

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Holwerda, Barry C., Sakti Jana, and William L. Crosby. "CHLOROPLAST AND MITOCHONDRIAL DNA VARIATION IN HORDEUM VULGARE AND HORDEUM SPONTANEUM." Genetics 114, no. 4 (1986): 1271–91. http://dx.doi.org/10.1093/genetics/114.4.1271.

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ABSTRACT A survey of restriction fragment polymorphism in Hordeum vulgare and Hordeum spontaneum was made using 17 and 16 hexanucleotide restriction endonucleases on chloroplast (cp) and mitochondrial (mt) DNA, respectively. The plant accessions originated from various places throughout the Fertile Cresent and Mediterranean. The types of changes in cpDNA consisted of nucleotide substitutions and insertions and deletions on the order of 100 base pairs. In contrast, mtDNA has most likely undergone larger insertions and deletions of up to 20 kilobase pairs in addition to rearrangements. Grouping

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Pomortsev, A. A., S. P. Martynov, and E. V. Lyalina. "Hordein locus polymorphism of cultivated barley (Hordeum vulgare L.) in Turkey." Russian Journal of Genetics 43, no. 11 (2007): 1294–300. http://dx.doi.org/10.1134/s1022795407110129.

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González, Juan Manuel, and Esther Ferrer. "Random amplified polymorphic DNA analysis in Hordeum species." Genome 36, no. 6 (1993): 1029–31. http://dx.doi.org/10.1139/g93-137.

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Random amplified polymorphic DNA analysis was performed by applying a set of 13 arbitrary 10-mer primers to 19 Hordeum species and subspecies. High levels of variation in fragment pattern were observed both within and among species with most of the primers used. Genetic similarities between accessions and species were calculated from the fragment patterns. The resulting phenograms confirmed previous relationships among the Hordeum species.Key words: random amplified polymorphic DNA, polymerase chain reaction, polymorphism, Hordeum.

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Kloot, PM. "Influence of environmental factors on the germination of barley grass (Hordeum glaucum) and annual ryegrass (Lolium rigidum)." Australian Journal of Experimental Agriculture 27, no. 4 (1987): 525. http://dx.doi.org/10.1071/ea9870525.

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The ability of Hordeum glaucum to germinate and initially grow faster than Lolium rigidum was found to be influenced by the soil's physical state and its chemical characteristics. Glasshouse studies showed that the replacement of Lolium by Hordeum in undisturbed situations was due to the advantage of the latter having awned florets which anchor and lever the seed on smooth, compacted surfaces. Soil disturbance produces a broken surface upon which Hordeum has no advantage over Lolium. Hordeum is also able to germinate under higher osmotic pressures than is Lolium. Higher osmotic pressures will

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Golovanov, Ya M., and L. M. Abramova. "To syntaxonomy and ecology of communities with participation of alien species Hordeum jubatum L. in the South Urals." Vegetation of Russia, no. 38 (July 2020): 13–26. http://dx.doi.org/10.31111/vegrus/2020.38.13.

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The synthaxonomy and ecology of communities with predominance of Hordeum jubatum L., included in the «black list» of the Republic of Bashkortostan (Abramova, Golovanov, 2016a), the preliminary «black list» of the Orenburg Region (Abramova et al., 2017) and the «Black book of flora of Middle Russia» (Vinogradova et al., 2010), are discussed in the article, which continues a series of publications on the classification of communities with alien species in the South Urals (Abramova, 2011, 2016; Abramova, Golovanov, 2016b). H. jubatum was first found in the South Urals in 1984 as an adventive plan

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Korzun, V., S. Malyshev, R. A. Pickering, and A. Börner. "RFLP mapping of a gene for hairy leaf sheath using a recombinant line from Hordeum vulgare L. ×Hordeum bulbosum L. cross." Genome 42, no. 5 (1999): 960–61. http://dx.doi.org/10.1139/g99-021.

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A gene conditioning hairy leaf sheath character, which was derived from Hordeum bulbosum and designated Hsb, was mapped using a cross between Hordeum vulgare and a H. vulgare/H. bulbosum recombinant line. The Hsb locus was tagged relative to eight RFLP markers detecting three loci on the distal part of chromosome 4HL. The map position suggests that Hsb of H. bulbosum is homoeologous to the gene Hp1 of rye (Secale cereale), which pleiotropically governs the traits hairy leaf sheath and hairy peduncle. It is proposed that the recombination break point between H. vulgare and H. bulbosum chromosom

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Baum, Bernard R., and L. Grant Bailey. "Morphometric study of three closely related South American species of Hordeum section Stenostachys (Poaceae)." Canadian Journal of Botany 70, no. 3 (1992): 496–502. http://dx.doi.org/10.1139/b92-064.

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This study investigates the morphologically distinguishable characteristics of Hordeum santacrucense Parodi et Nicora and Hordeum setifolium Parodi et Nicora, two recently described species from southern South America that are very similar morphologically, and Hordeum patagonicum (Hauman) Covas, also from southern South America and morphologically similar to the above two species. The three entities have not been kept at the species level by some authors. This paper provides the results of a morphological investigation as justification for their retention at the specific level. The character l

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SCHWARZACHER-ROBINSON, TRUDE, R. A. FINCH, J. B. SMITH, and M. D. BENNETT. "Genotypic control of centromere positions of parental genomes in Hordeum × Secale hybrid metaphases." Journal of Cell Science 87, no. 2 (1987): 291–304. http://dx.doi.org/10.1242/jcs.87.2.291.

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The spatial disposition at metaphase of centromeres from Hordeum and Secale in root tip cells of H. chilense × S. africanum is described and compared with corresponding results for H. vulgare × S. africanum obtained previously. In both of these F1 sexual hybrids (2n = 2x = 14) each of the seven chromosome types from Secale was easily distinguished by its large size from any of the seven from Hordeum. In H. chilense × S. africanum, centromeres of Secale chromosomes tended to be nearer the centre of the metaphase plate than did centromeres of Hordeum chromosomes in both squash preparations seen

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Tozer, K. N., D. F. Chapman, R. D. Cousens, et al. "Effects of perennial species on the demography of annual grass weeds in pastures subject to seasonal drought and grazing." Crop and Pasture Science 60, no. 11 (2009): 1088. http://dx.doi.org/10.1071/cp08453.

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A field experiment was established in a southern Australian temperate pasture to investigate the effects of identity and proximity of perennial grasses on the demography of the annual grasses Vulpia spp. (V. myuros, V. bromoides) and Hordeum leporinum (barley grass). Annual grasses were grown either alone or in mixtures, at different distances from rows of Dactylis glomerata (cocksfoot) and Phalaris aquatica (phalaris). Dactylis had a greater suppressive effect than Phalaris on Vulpia and Hordeum. Biomass, tiller production, and panicle production of annual grasses increased linearly with incr

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Kankanpää, Juha, Alan H. Schulman, and Leena Mannonen. "The genome sizes of Hordeum species show considerable variation." Genome 39, no. 4 (1996): 730–35. http://dx.doi.org/10.1139/g96-092.

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Hordeum, distributed worldwide in temperate zones, is the second largest genus in the tribe Triticeae and includes diploid, tetraploid, and hexaploid species. We determined, by DAPI staining and flow cytometry, the nuclear DNA content for 35 accessions of the genus Hordeum, from a total of 19 species, including specimens of 2 cultivars and 2 landraces of Hordeum vulgare ssp. vulgare as well as samples of 12 Hordeum vulgare ssp. spontaneum populations. Genome sizes ranged from 5.69 to 9.41 pg for the G1 nuclei of the diploids, and from 13.13 to 18.36 pg for those of the tetraploids. This consti

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