A taxonomic synopsis of the genus Campeiostachys Drobov
We have classified 11 species recently recognized as belonging to the genus Elymus into a resurrected and legitimate genus Campeiostachys Drobov according to the International Code of Botanical Nomenclature. Our action is based on the rationale of monophyly, discrimination, and practicality discusse...
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| Veröffentlicht in: | Journal of systematics and evolution : JSE 2011-03, Vol.49 (2), p.146-159 |
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| container_title | Journal of systematics and evolution : JSE |
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| creator | BAUM, Bernard R. YANG, Jun-Liang YEN, Chi AGAFONOV, Alex V. |
| description | We have classified 11 species recently recognized as belonging to the genus Elymus into a resurrected and legitimate genus Campeiostachys Drobov according to the International Code of Botanical Nomenclature. Our action is based on the rationale of monophyly, discrimination, and practicality discussed in detail. Currently Elymus contains a vast number of species with different genomes which often, but not always, can be differentiated by cytological and molecular features, but are difficult to separate by traditional morphology, although an effort to do so is detailed and discussed. This difficulty can be attributed to the dominance effect of a particular genome on the other genome（s） present. Campeiostachys, with genome constitution StStHI-IYY, is a recent addition to a number of genera recently segregated out of Elymus, i.e. Douglasdeweya （StStPP）, Kengyilia （StStPPYY）, and Roegneria （StStYY, StStStStYY）. A key to Campeiostachys taxa is provided, along with taxa descriptions, distribution, nomenclature, and cytology. Nineteen nomenclatural novelties, or combinations, resulted from this work, 10 species names, and nine varietal names. |
| doi_str_mv | 10.1111/j.1759-6831.2010.00106.x |
| format | Article |
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Our action is based on the rationale of monophyly, discrimination, and practicality discussed in detail. Currently Elymus contains a vast number of species with different genomes which often, but not always, can be differentiated by cytological and molecular features, but are difficult to separate by traditional morphology, although an effort to do so is detailed and discussed. This difficulty can be attributed to the dominance effect of a particular genome on the other genome（s） present. Campeiostachys, with genome constitution StStHI-IYY, is a recent addition to a number of genera recently segregated out of Elymus, i.e. Douglasdeweya （StStPP）, Kengyilia （StStPPYY）, and Roegneria （StStYY, StStStStYY）. A key to Campeiostachys taxa is provided, along with taxa descriptions, distribution, nomenclature, and cytology. 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Our action is based on the rationale of monophyly, discrimination, and practicality discussed in detail. Currently Elymus contains a vast number of species with different genomes which often, but not always, can be differentiated by cytological and molecular features, but are difficult to separate by traditional morphology, although an effort to do so is detailed and discussed. This difficulty can be attributed to the dominance effect of a particular genome on the other genome（s） present. Campeiostachys, with genome constitution StStHI-IYY, is a recent addition to a number of genera recently segregated out of Elymus, i.e. Douglasdeweya （StStPP）, Kengyilia （StStPPYY）, and Roegneria （StStYY, StStStStYY）. A key to Campeiostachys taxa is provided, along with taxa descriptions, distribution, nomenclature, and cytology. 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Our action is based on the rationale of monophyly, discrimination, and practicality discussed in detail. Currently Elymus contains a vast number of species with different genomes which often, but not always, can be differentiated by cytological and molecular features, but are difficult to separate by traditional morphology, although an effort to do so is detailed and discussed. This difficulty can be attributed to the dominance effect of a particular genome on the other genome（s） present. Campeiostachys, with genome constitution StStHI-IYY, is a recent addition to a number of genera recently segregated out of Elymus, i.e. Douglasdeweya （StStPP）, Kengyilia （StStPPYY）, and Roegneria （StStYY, StStStStYY）. A key to Campeiostachys taxa is provided, along with taxa descriptions, distribution, nomenclature, and cytology. 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| identifier | ISSN: 1674-4918 |
| ispartof | Journal of systematics and evolution : JSE, 2011-03, Vol.49 (2), p.146-159 |
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| source | Wiley Online Library Journals Frontfile Complete; Alma/SFX Local Collection |
| subjects | Elymus genome Genomes key to species morphology 分类群 命名法规 国际植物 基因组 披碱草属 染色体组构成 特征区别 珍贵品种 |
| title | A taxonomic synopsis of the genus Campeiostachys Drobov |
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