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首页> 外文期刊>Biochemical Genetics >Population Genetics of Calotropis gigantea, a Medicinal and Fiber Resource Plant, as Inferred from Microsatellite Marker Variation in two Native Countries
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Population Genetics of Calotropis gigantea, a Medicinal and Fiber Resource Plant, as Inferred from Microsatellite Marker Variation in two Native Countries

机译：萨洛奇甘笼群的群体遗传学，一种药用和纤维资源植物，从两种祖国微卫星标记变异推断出来

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摘要

Calotropis gigantea is well known for its aesthetic, medicinal, pharmacological, fodder, fuel, and fiber production potential. Unfortunately, this plant species is still undomesticated, and the genetic information available for crop improvement is limited. For this study, we sampled 21 natural populations of C. gigantea from two key areas of its natural distribution range (Bangladesh and China) and genotyped 379 individuals using nine nuclear microsatellite markers. Population genetic diversity was higher in Bangladesh than that observed in Chinese populations. Overall, a moderate level of genetic diversity was found (N-a = 3.73, H-E= 0.466), with most of the genetic variation detected within populations (65.49%) and substantial genetic differentiation (F-ST = 0.345) between the study regions. We observed a significant correlation between genetic and geographic distances (r = 0.287, P = 0.001). The Bayesian clustering, UPGMA tree, and PCoA analyses yielded three distinct genetic pools, but the number of migrants per generation was high (N-M = 0.52-2.78) among them. Our analyses also revealed that some populations may have experienced recent demographic bottlenecks. Our study provides a baseline for exploitation of the genetic resources of C. gigantea in domestication and breeding programs as well as some insights into the germplasm conservation of this valuable plant.
机译：Calotropis Gigantea以其美学，药用，药理学，饲料，燃料和纤维生产潜力而闻名。不幸的是，这种植物物种仍然是令人不安的，可用于作物改善的遗传信息有限。对于这项研究，我们使用九种核微卫星标记的三个关键领域，从其自然分配范围（孟加拉国和中国）和基因分型379个体的三个关键领域来取样21个天然群。孟加拉国人口遗传多样性比中国人口中观察到的人口遗传多样性更高。总体而言，发现了适度的遗传多样性（N-A = 3.73，H-E = 0.466），其中大部分遗传变异在研究区域之间的群体（65.49％）和大量遗传分化（F-St = 0.345）内检测到。我们观察到遗传和地理距离之间的显着相关性（r = 0.287，p = 0.001）。贝叶斯聚类，Upgma树和PCOA分析产生了三个不同的遗传池，但其中每代的移民数量高（n-m = 0.52-2.78）。我们的分析还透露，一些人口可能经历过最近的人口瓶颈。我们的研究提供了一种基准，用于利用C. Gigantea在驯化和育种计划中的遗传资源以及对该宝贵工厂的种质保护的一些见解。

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