Genetic characterization of three varieties of Astragalus lentiginosus (Fabaceae)
Genetic characterization of three varieties of Astragalus lentiginosus (Fabaceae)
复制标题
豆科黄芪三个品种的遗传特征
作者：
B. Knaus;R. Cronn;A. Liston
紫云英是一种多态物种，发生在地质上较年轻的生境中，其品种范围暗示着活跃的形态和遗传分化。在这项初步研究中，我们评估了扩增片段长度多态(AFLP)标记在区分三个扁平黄芪品种种下分类群的潜力。基于距离的原则、坐标和邻接分析导致了符合种群起源和品种范围的个体聚类。对两个俄勒冈州品种的分子方差分析表明，品种类别对总方差的贡献率为11%；相比之下，地理位置的接近对总方差的贡献不大。AFLP显示出区分FA品种的能力。尽管可能存在令人困惑的地理格局，但可能被证明在推断整个群体的关系方面是有效的。
Astragalus lentiginosus is a polymorphic species that occurs in geologically young habitats and whose varietal circumscription implies active morphological and genetic differentiation. In this preliminary study, we evaluate the potential of amplified fragment length polymorphism (AFLP) markers to resolve infraspecific taxa in three varieties ofAstragalus lentiginosus. Distance-based principle coordinate and neighbor-joining analyses result in clustering of individuals that is congruent with population origin and varietal circumscription. Analysis of molecular variance of two Oregon varieties demonstrates that varietal categories account for 11% of the total variance; in contrast, geographic proximity does not contribute to the total variance. AFLPs demonstrate an ability to discriminate varieties ofA. lentiginosus despite a potentially confounding geographic pattern, and may prove effective at inferring relationships throughout the group.
影响因子：
10.7
作者：
Michael Lynch
通讯作者：
Michael Lynch
影响因子：
3.3
作者：
L. Excoffier;P. Smouse;J. Quattro
通讯作者：
L. Excoffier;P. Smouse;J. Quattro