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Relevant bibliographies by topics / Holokinetic chromosomes

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Academic literature on the topic 'Holokinetic chromosomes'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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Journal articles on the topic "Holokinetic chromosomes"

1

Manicardi, G. C., D. C. Gautam, D. Bizzaro, E. Guicciardi, A. M. Bonvicini Pagliai, and U. Bianchi. "Chromosome banding in aphids: G, C, AluI, and HaeIII banding patterns in Megoura viciae (Homoptera, Aphididae)." Genome 34, no. 4 (1991): 661–65. http://dx.doi.org/10.1139/g91-101.

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The holocentric mitotic chromosomes of Megoura viciae, a species that has been little studied cytogenetically to date, have been characterized by applying G, C, AluI, and HaeIII banding techniques. C bands have shown the best defined patterns, particularly on the X chromosome. This chromosome, on the other hand, behaved as the most reactive to the various treatments. Uncondensed, prometaphase X chromosomes showed a number of heterochromatic bands, interspersed among the euchromatin, which fused together during metaphase condensation. AluI and HaeIII treatments also produced reproducible bandin

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2

Kuznetsova, Valentina, Snejana Grozeva, Seppo Nokkala, and Christina Nokkala. "Cytogenetics of the true bug infraorder Cimicomorpha (Hemiptera, Heteroptera): a review." ZooKeys 154 (December 12, 2011): 31–70. https://doi.org/10.3897/zookeys.154.1953.

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The Cimicomorpha is one of the largest and highly diversified infraorders of the Heteroptera. This group is also highly diversified cytogenetically and demonstrates a number of unusual cytogenetic characters such as holokinetic chromosomes; m-chromosomes; multiple sex chromosome systems; post-reduction of sex chromosomes in meiosis; variation in the presence/absence of chiasmata in spermatogenesis; different types of achiasmate meiosis. We present here a review of essential cytogenetic characters of the Cimicomorpha and outline the chief objectives and goals of future investigations in the fie

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3

Bardella, Vanessa Bellini, Hélcio Reinaldo Gil-Santana, Francisco Panzera, and André Luís Laforga Vanzela. "Karyotype diversity among predatory Reduviidae (Heteroptera)." Comparative Cytogenetics 8, no. (4) (2014): 351–67. https://doi.org/10.3897/CompCytogen.v8i4.8430.

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Species of infraorder Cimicomorpha of Heteroptera exhibit holokinetic chromosomes with inverted meiosis for sex chromosomes and high variation in chromosome number. The family Reduviidae, which belongs to this infraorder, is also recognized by high variability of heterochromatic bands and chromosome location of 18S rDNA loci. We studied here five species of Reduviidae (Harpactorinae) with predator habit, which are especially interesting because individuals are found solitary and dispersed in nature. These species showed striking variation in chromosome number (including sex chromosome systems)

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4

Kuznetsova, Valentina G., Seppo Nokkala, and Dmitri E. Shcherbakov. "Karyotype, reproductive organs, and pattern of gametogenesis in Zorotypus hubbardi Caudell (Insecta: Zoraptera, Zorotypidae), with discussion on relationships of the order." Canadian Journal of Zoology 80, no. 6 (2002): 1047–54. http://dx.doi.org/10.1139/z02-074.

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For the first time, the karyotype is described in a representative of the order Zoraptera. Zorotypus hubbardi Caudell (Zorotypidae) have holokinetic chromosomes and male karotype of 2n = 38 (36 + neo-XY). Males possess two follicles in each testis and females have six panoistic ovarioles in each ovary. Oogenesis and, more closely, spermato genesis, including meiosis and sperm formation, have been studied. Based on the presence of panoistic ovaries and holokinetic chromosomes, Crampton's hypothesis that Zoraptera represent a group of Polyneoptera nearest to the origin of Paraneoptera is conside

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5

Fuková, Iva, Petr Nguyen, and Frantiek Marec. "Codling moth cytogenetics: karyotype, chromosomal location of rDNA, and molecular differentiation of sex chromosomes." Genome 48, no. 6 (2005): 1083–92. http://dx.doi.org/10.1139/g05-063.

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We performed a detailed karyotype analysis in the codling moth, Cydia pomonella (L.) (Lepidoptera: Tortricidae), the key pest of pome fruit in the temperate regions of the world. The codling moth karyotype consisted of 2n = 56 chromosomes of a holokinetic type. The chromosomes were classified into 5 groups according to their sizes: extra large (3 pairs), large (3 pairs), medium (15 pairs), small (5 pairs), and dot-like (2 pairs). In pachytene nuclei of both sexes, a curious NOR (nucleolar organizer region) bivalent was observed. It carried 2 nucleoli, each associated with one end of the bivale

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6

Sadílek, David, Robert B. Angus, František Šťáhlavský, and Jitka Vilímová. "Comparison of different cytogenetic methods and tissue suitability for the study of chromosomes in Cimex lectularius (Heteroptera, Cimicidae)." Comparative Cytogenetics 10, no. 4 (2016): 731–52. http://dx.doi.org/10.3897/compcytogen.v10i4.10681.

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In the article we summarize the most common recent cytogenetic methods used in analysis of karyotypes in Heteroptera. We seek to show the pros and cons of the spreading method compared with the traditional squashing method. We discuss the suitability of gonad, midgut and embryo tissue inCimexlectulariusLinnaeus, 1758 chromosome research and production of figures of whole mitosis and meiosis, using the spreading method.The hotplate spreading technique has many advantages in comparison with the squashing technique. Chromosomal slides prepared from the testes tissue gave the best results, tissues

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7

Sadílek, David, Robert B. Angus, František Šťáhlavský, and Jitka Vilímová. "Comparison of different cytogenetic methods and tissue suitability for the study of chromosomes in Cimex lectularius (Heteroptera, Cimicidae)." Comparative Cytogenetics 10, no. (4) (2016): 731–52. https://doi.org/10.3897/CcompCytogen.v10i4.10681.

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Abstract:

In the article we summarize the most common recent cytogenetic methods used in analysis of karyotypes in Heteroptera. We seek to show the pros and cons of the spreading method compared with the traditional squashing method. We discuss the suitability of gonad, midgut and embryo tissue in Cimex lectularius Linnaeus, 1758 chromosome research and production of figures of whole mitosis and meiosis, using the spreading method. The hotplate spreading technique has many advantages in comparison with the squashing technique. Chromosomal slides prepared from the testes tissue gave the best results, tis

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8

Sadílek, David, Robert B. Angus, František Šťáhlavský, and Jitka Vilímová. "Comparison of different cytogenetic methods and tissue suitability for the study of chromosomes in Cimex lectularius (Heteroptera, Cimicidae)." Comparative Cytogenetics 10, no. (4) (2016): 731–52. https://doi.org/10.3897/CompCytogen.v10i4.10681.

Full text

Abstract:

In the article we summarize the most common recent cytogenetic methods used in analysis of karyotypes in Heteroptera. We seek to show the pros and cons of the spreading method compared with the traditional squashing method. We discuss the suitability of gonad, midgut and embryo tissue in Cimex lectularius Linnaeus, 1758 chromosome research and production of figures of whole mitosis and meiosis, using the spreading method. The hotplate spreading technique has many advantages in comparison with the squashing technique. Chromosomal slides prepared from the testes tissue gave the best results, tis

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9

Kuta, Elzbieta, Borut Bohanec, Ewa Dubas, Liliana Vizintin, and Leslaw Przywara. "Chromosome and nuclear DNA study on Luzula - a genus with holokinetic chromosomes." Genome 47, no. 2 (2004): 246–56. http://dx.doi.org/10.1139/g03-121.

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Chromosomes and nuclear DNA amount were analyzed in leaf tissues of Luzula nivea, Luzula luzuloides, and Luzula multiflora. Intra- and interspecific karyological variability was stated. Chromosome numbers in diploids ranged 2n = 8-24 in L. nivea and L. luzuloides and 2n = 12-84 in hexaploid L. multiflora. Karyological variability resulted mainly from chromosome fission (agmatoploidy) and aneusomaty; chromosome fusion (symploidy) and polyploidy were also involved. Flow cytometric determination of nuclear genome size using propidium iodide staining gave values of 1.584 pg in L. luzuloides, 1.566

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10

Mola, Liliana M., Iva Vrbová, Daniela S. Tosto, Magda Zrzavá, and František Marec. "On the Origin of Neo-Sex Chromosomes in the Neotropical Dragonflies Rhionaeschna bonariensis and R. planaltica (Aeshnidae, Odonata)." Insects 13, no. 12 (2022): 1159. http://dx.doi.org/10.3390/insects13121159.

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Odonata have holokinetic chromosomes. About 95% of species have an XX/X0 sex chromosome system, with heterogametic males. There are species with neo-XX/neo-XY sex chromosomes resulting from an X chromosome/autosome fusion. The genus Rhionaeschna includes 42 species found in the Americas. We analyzed the distribution of the nucleolar organizer region (NOR) using FISH with rDNA probes in Rhionaeschna bonariensis (n = 12 + neo-XY), R. planaltica (n = 7 + neo-XY), and Aeshna cyanea (n = 13 + X0). In R. bonariensis and A. cyanea, the NOR is located on a large pair of autosomes, which have a seconda

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Book chapters on the topic "Holokinetic chromosomes"

1

Wrensch, Dana L., John B. Kethley, and Roy A. Norton. "Cytogenetics of Holokinetic Chromosomes and Inverted Meiosis: Keys to the Evolutionary Success of Mites, with Generalizations on Eukaryotes." In Mites. Springer US, 1994. http://dx.doi.org/10.1007/978-1-4615-2389-5_11.

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