RAPD标记研究马褂木地理种群的遗传分化

doi:10.11707/j.1001-7488.20020410

Abstract

Abstract:

Genetic diversity of 15 populations from whole natural range of L.chinense was analyzed by using RAPD markers.It was found that L.chinense had a relatively high genetic diversity,but genetic diversity of the eastern populations was obviously less than that of the western because the eastern population had a small population size.Population genetics revealed that the small population effect,for lack of gene flow and special endangering mechanism resulted in a high genetic differentiation within populations which amounted to 34.34% of the genetic variation.Genetic differentiation among populations varied with geographic regions.Neighboring populations at eastern region showed large genetic differentiation,comparing with the western populations.The whole natural distribution range of L.chinense might be divided obviously into the western and the eastern provenance zone,the former could be further subdivided into Southwest and Center China subzone by cluster analysis(UPGMA) based on Nei's unbiased genetic distance.

Key words: Liriodendron chinense, RAPD, Geographic populations, Genetic diversity, Genetic differentiation

Li Jianmin;Zhou Zhichun;Wu Kaiyun;Jin Guoqing. GENETIC DIFFERENTIATION OF GEOGRAPHIC POPULATIONS IN LIRIODENDRON CHINENSE USING RAPD MARKERS[J]. Scientia Silvae Sinicae, 2002, 38(4): 61-66.

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GENETIC DIFFERENTIATION OF GEOGRAPHIC POPULATIONS IN LIRIODENDRON CHINENSE USING RAPD MARKERS

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