The structure of genotypic diversity and the possibility of sexual reproduction in populations of Tulipa riparia (Liliaceae)

被引：0
作者：
N. A. Kutlunina
A. Yu. Belyaev
M. S. Knyazev
机构：
[1] Ural Federal University named after the first President of Russia B.N. Yeltsin,Institute of Plant and Animal Ecology, Ural Branch
[2] Russian Academy of Sciences,Botanical Garden, Ural Branch
[3] Russian Academy of Sciences,undefined
来源：
Russian Journal of Ecology | 2016年 / 47卷
关键词：
clonal plant; triploidy; isozymes; genotypic diversity; reproductive system; isolated populations;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The structure of genotypic diversity in eight populations of the clonal triploid (2n = 3x = 36) tulip Tulipa riparia inhabiting floodplain communities in the Southern Urals was studied. Analysis of nine polymorphic enzyme systems (ADH, IDH, SkDH, PGI, PGM, FDH, NADHdh, C-EST, GOT) was performed to identify clones. Both monoclonal (D = 0) and polyclonal populations with multiple genotypes from 3 to 12 (D from 0.73 to 0.91) were identified. The polyclonal populations had a high level of heterozygosity. Dispersal of propagules (bulbs) along rivers and even from one bank of a river to the opposite was detected. Some clones disperse along riverbanks to the distance of hundreds meters (up to four kilometres). At the same time, there is an effect of “isolated” or “closed” populations. Almost each sequentially arranged population in one river system have its own set of genotypes. Assessment of the state of the reproductive system components indicates presence of a rare sexual reproduction supporting genetic diversity of T. riparia.
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页码：412 / 418
页数：6
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