摘要
应用居群生物学原理及方法,对分布在中国不同地区的11个柠条锦鸡儿(Caragana korshinskiiKom.)天然居群进行取样,分析了叶、荚果、种子等11个指标的表型多样性。结果表明,柠条锦鸡儿居群在形态上具有丰富的多样性(H′=2.019 0)。在遗传多样性的分布上,居群间虽存在一定程度的遗传变异,但遗传多样性主要集中在居群内部,这种特点是由柠条锦鸡儿异花、虫媒传粉的外繁育系统所决定。我国柠条锦鸡儿居群在各个分布区的遗传多样性程度也不同,从大到小依次为宁夏地区(H′=1.706 8)>内蒙古地区(H′=1.631 6)>陕西地区(H′=1.624 7)>山西地区(H′=1.602 5)。
According to population biology theories, phenotypic diversity of eleven populations of skii Kom. in China were selected and investigated. The results showed that there was an abundant p (H' = 2.019 0) among these tfibution pattern of phenotypic lations (19.37%) which was Caragana korshinhenotypic diversity populations in 11 morphological characters such as leaves, pods and seeds. As for the disdiversity, the genetic variation among population(80.63 % ) was greater than within popudecided by its outcrossing-insect breeding system. Phenotypic diversity of this species distributed over every region was different, whose turn was Ningxia region (H' = 1.706 8) 〉 Inner Mongolia region (H' = 1.631 6) 〉 Shaanxi region 〉 (H' = 1.624 7) 〉 Shanxi region(H' = 1.602 5).
出处
《华北农学报》
CSCD
北大核心
2008年第B06期59-61,共3页
Acta Agriculturae Boreali-Sinica
基金
国家“十一五”科技支撑计划(2006BAD01A16)
关键词
柠条锦鸡儿
天然居群
表型多样性
Caragana korshinskii
Natural population
Phenotypic diversity