Assessment of genetic diversity in cultivars of white clover (Trifolium repens L.) detected by SSR polymorphisms.
作者： Julie George , Mark P Dobrowolski , Eline van Zijll de Jong , Noel OI Cogan , Kevin F Smith
DOI: 10.1139/G06-079
关键词: Trifolium repens 、 Lolium perenne 、 Biology 、 Botany 、 Pasture 、 Microsatellite 、 Perennial plant 、 Cultivar 、 Genetic diversity 、 Outbreeding depression
摘要: White clover (Trifolium repens L.) is an important temperate pasture legume that plays a key role as companion to grass species, such perennial ryegrass (Lolium perenne L.). Due the outbreeding nature of white clover, cultivars are highly heterogeneous. Genetic diversity was assessed using 16 elite from Europe, North and South America, Australia, New Zealand. Fifteen simple sequence repeat markers detect single, codominant polymorphic genetic loci were selected for study. The relationships among individuals compared phenetic clustering, those nonmetric multidimensional scaling. Intrapopula tion variability exceeded interpopulation variability, with substantial overlap populations weak interpopula differentiation. No obvious or significant differentiation observed on basis morphology geographic origin cultivars. number parental genotypes used derive each cultivar not a...
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