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2篇 您的检索式:作者名="Marina V.Olonova"
    题名 作者 年代 出处 被引量
1Rare and endangered plant species of the Chinese Altai Mountains显示文摘Altai (also named Altay in China) Mountain Country (Mountain System) is a unique natural region,located on the border between different floristic regimes of the Boreal and ancient Mediterranean sub-kingdoms,where distribution of plant species is actually limited. It is known to have sufficient endemic floral biodiversity in the Northern Asia. Many plants of Altai Mountain System need effective care and proper conservation measures for their survival and longer-term protection. Important Plant Area identified as the IUCN (the International Union for Conservation of Nature),specified criteria attract global attention for protection of floral biodiversity across the world. The records of 71 plant species from the Chinese Altai Mountains attributed to the criterion A and the dark conifer forests of Chinese Altai Mountains satisfied the criterion C,which may help qualify to fulfill the national obligation of the Convention on Biological Diversity.Marina V.OLONOVA 2010Journal of Arid Land2010,2,3:3
2Breeding systems and phylogeny in Poa,with special attention to Northeast Asia:The problem of Poa shumushuensis and sect.Nivicolae(Poaceae)显示文摘Poa sect.Poa subsect.Nivicolae(Prob.)Tzvelev was circumscribed to include four species of the Soviet Union:Poa shumushuensis,Poa caucasica,Poa irkutica,and Poa veresczaginii.Bayesian phylogenetic analyses of plastid and nuclear-ribosomal DNA revealed that it is polyphyletic,none of these species are closely related.Poa shumushuensis,type of sect.Nivicolae,or its ancestor,likely displayed the nrDNA genotype characteristic of the higher polyploid P.sect.Malacanthae.Genotype codes are designated for each species:Hx,C c,Php,and Shp.Poa sect.Nivicolae s.s.is restricted to P.shumushuensis;P.sect.Irkuticae is restricted to P.irkutica;P.caucasica is moved to P.subg.§.Caucasicae nov.;and P.sect.Dschungaricae is resurrected for P.veresczaginii and two other species.Although diclinous breeding systems are known in many western hemisphere species of Poa,dicliny is infrequent and little studied in Asian Poa.Poa shumushuensis is judged to be either sequentially gynomonoecious or gynodioecious.A ratio of 2 perfect-,to 2 mixed-,to 1 pistillate-flowered inflorescences from different plants in P.shumushuensis is suggestive of a recessive allele for stamen suppression,and this is associated with subtle sexual-dimorphism.Poa irkutica is diclinous with a breeding system between simple gynomonoecy and sequential gynomonoecy;P.caucasica is perfectly flowered;and P.veresczaginii has infrequent abortive anthers,indicative of limited dicliny,or sterility for other reasons possibly related to its reticulate origin.In total,23 Asian species are here reported to be diclinous and their breeding systems are characterized.A lectotype is designated for P.fauriei.Robert J.Soreng Marina V.Olonova Nina S.Probatova Lynn J.Gillespie 2020Journal of Systematics and Evolution2020,58,6:0
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