Relevant bibliographies by topics / Crotalaria - Phylogeny

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Academic literature on the topic 'Crotalaria - Phylogeny'

Author: Grafiati
Published: 4 June 2021
Last updated: 2 February 2022

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Journal articles on the topic "Crotalaria - Phylogeny"

1

Wang, M. L., J. A. Mosjidis, J. B. Morris, R. E. Dean, T. M. Jenkins, and G. A. Pederson. "Genetic diversity of Crotalaria germplasm assessed through phylogenetic analysis of EST-SSR markers." Genome 49, no. 6 (June 1, 2006): 707–15. http://dx.doi.org/10.1139/g06-027.

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The genetic diversity of the genus Crotalaria is unknown even though many species in this genus are economically valuable. We report the first study in which polymorphic expressed sequence tag-simple sequence repeat (EST-SSR) markers derived from Medicago and soybean were used to assess the genetic diversity of the Crotalaria germplasm collection. This collection consisted of 26 accessions representing 4 morphologically characterized species. Phylogenetic analysis partitioned accessions into 4 main groups generally along species lines and revealed that 2 accessions were incorrectly identified as Crotalaria juncea and Crotalaria spectabilis instead of Crotalaria retusa. Morphological re-examination confirmed that these 2 accessions were misclassified during curation or conservation and were indeed C. retusa. Some amplicons from Crotalaria were sequenced and their sequences showed a high similarity (89% sequence identity) to Medicago truncatula from which the EST-SSR primers were designed; however, the SSRs were completely deleted in Crotalaria. Highly distinguishing markers or more sequences are required to further classify accessions within C. juncea.Key words: Crotalaria germplasm, EST-SSR, genetic diversity, phylogeny.
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Jourand, Philippe, Eric Giraud, Gilles Béna, Abdoulaye Sy, Anne Willems, Monique Gillis, Bernard Dreyfus, and Philippe de Lajudie. "Methylobacterium nodulans sp. nov., for a group of aerobic, facultatively methylotrophic, legume root-nodule-forming and nitrogen-fixing bacteria." International Journal of Systematic and Evolutionary Microbiology 54, no. 6 (November 1, 2004): 2269–73. http://dx.doi.org/10.1099/ijs.0.02902-0.

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Data on 72 non-pigmented bacterial strains that specifically induce nitrogen-fixing root nodules on the legume species Crotalaria glaucoides, Crotalaria perrottetii and Crotalaria podocarpa are reviewed. By SDS-PAGE analysis of total protein patterns and by 16S rRNA PCR-RFLP, these strains form a homogeneous group that is separate from other legume root-nodule-forming bacteria. The 16S rRNA gene-based phylogeny indicates that these bacteria belong to the genus Methylobacterium. They can grow on C1 compounds such as methanol, formate and formaldehyde but not methylamine as sole carbon source, and carry an mxaF gene, encoding methanol dehydrogenase, which supports their methylotrophic metabolism. Presence of a nodA nodulation gene, and ability to nodulate plants of Crotalaria species and to fix nitrogen are features that separate the strains currently included in this group from other members of the genus Methylobacterium. The present study includes additional genotypic and phenotypic characterization of this novel Methylobacterium species, i.e. nifH gene sequence, morphology, physiology, enzymic and carbon source assimilation tests and antibiotic resistance. The name Methylobacterium nodulans sp. nov. (type strain, ORS 2060T=CNCM I 2342T=LMG 21967T) is proposed for this group of root-nodule-forming bacteria.
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3

Balan, Anoop P., and S. V. Predeep. "Legumes of Kerala, India: a checklist." Journal of Threatened Taxa 13, no. 5 (April 28, 2021): 18257–82. http://dx.doi.org/10.11609/jott.6475.13.5.18257-18282.

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A checklist of the legumes of Kerala State is presented. This exhaustive checklist is an outcome of extensive field surveys, collection, identification and documentation of family Leguminosae carried out across Kerala State during the period 2006–2019. A total of 448 taxa were recorded under five subfamilies and 115 genera. The majority of the legumes are herbs and shrubs, the rest being trees and woody climbers. About 81 taxa are endemic to India, especially confined to the Western Ghats biodiversity hotspot, out of which 17 are endemic to Kerala. The state is home to two Critically Endangered and six Endangered legumes, facing severe threat of extinction. Crotalaria is the dominant legume genus in the state with 62 taxa followed by Desmodium and Indigofera. About 57 genera are represented by single species each. Legumes are treated according to the latest phylogenetic classification of the Legume Phylogeny Working Group (LPWG). Updated nomenclature, habit, native countries, voucher specimens, and images of endemic and lesser known legumes found in the state are provided. Crotalaria multiflora var. kurisumalayana (Sibichen & Nampy) Krishnaraj & N. Mohanan is reduced as a synonym to C. multiflora (Arn.) Benth.
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LE RU, BRUNO P., ALEX DELOBEL, ZOLTÁN GYÖRGY, GWENAËLLE GENSON, and GAEL J. KERGOAT. "Taxonomy, host-plant associations and phylogeny of African Crotalaria-feeding seed beetles (Coleoptera, Chrysomelidae, Bruchinae): the Conicobruchus strangulatus (Fåhraeus) species group." Zootaxa 3895, no. 2 (December 15, 2014): 238. http://dx.doi.org/10.11646/zootaxa.3895.2.6.

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5

Rockinger, Alexander, Andréia Silva Flores, and Susanne S. Renner. "Clock-dated phylogeny for 48% of the 700 species of Crotalaria (Fabaceae–Papilionoideae) resolves sections worldwide and implies conserved flower and leaf traits throughout its pantropical range." BMC Evolutionary Biology 17, no. 1 (February 28, 2017). http://dx.doi.org/10.1186/s12862-017-0903-5.

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Dissertations / Theses on the topic "Crotalaria - Phylogeny"

1

Le, Roux Margaretha Marianne. "A taxonomic study of the genus Crotalaria l (Fabaceae, tribe Crotalarieae) and a modified infrageneric classification system." Thesis, 2012. http://hdl.handle.net/10210/5831.

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D.Phil.
The genus Crotalaria (tribe Crotalarieae, Fabaceae) includes 700 species with its main centre of species diversity in Africa and Madagascar and secondary radiations to other parts of the world (including North and South America, India, South-East Asia and Australia). Molecular systematics has recently provided profound new insights into generic relationships in the Crotalarieae, thereby creating the opportunity to re-evaluate the taxonomic and functional significance of flower and fruit structure in the tribe, with emphasis on the large genus Crotalaria. A representative sample of flowers from 211 species was dissected to record morphological character states and fruit transverse sections of 142 species was cut to record anatomical variation across the tribe. These data were supplemented from the literature to allow for generalizations. Six structural-functional flower types were identified: (1) pump; (2) gullet; (3) hugging; (4) saddle; (5) tunnel; and (6) brush. The saddle and tunnel types are here described for the first time. Crotalaria is the only genus within the tribe that has the brush type; specialized flowers characterized by a rostrate keel, highly dimorphic anthers, stylar trichomes and four types of elaborate callosities on the standard petal: (1) ridge callosities – vertical swellings on the blade and claw; (2) disc callosities – subcircular swellings on the blade; (3) columnar callosities – cylindrical protruding appendages on the blade; and (4) lamelliform callosities – plate-like protruding appendages on the blade. Trends toward specialization are apparent across the phylogeny as a whole suite of specialized floral characters and are homoplastic as a result of convergence.
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Motsi, Moleboheng Cynthia. "Molecular phylogenetics of the genus Rafnia Thunb.(Fabaceae, Crotalarieae )." Thesis, 2008. http://hdl.handle.net/10210/242.

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Rafnia (Fabaceae, Crotalarieae) is sub endemic to the fynbos region of South Africa with one species extending to KwaZulu-Natal. Morphological analysis was unable to resolve the relationships within the genus but provided a working hypothesis for future studies. A molecular phylogeny of Rafnia (Fabaceae) is presented. Sequenced data was obtained from five regions of the chloroplast genome (rps16 intron, accD-psa1 spacer, psbA-trnH intergenic spacer, trnL intron and trnL-F intergenic spacer) and one region of the nuclear genome (ITS). Congruence between the plastid and nuclear datasets were very low and combination of datasets was difficult to justify. Several explanations for the incongruent datasets are proposed. In addition to the species-level analyses of Rafnia, a higher-level analysis was carried out with additional taxa sampled from across the ‘core genistoids’. The resulting phylogeny was used to produce an estimate for the age of Rafnia.
Dr. M. van der Bank
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