Genetic Variation Across the Natural Distribution of the South East Asian Pine, Pinus kesiya R OYLE ex GORDON (Pinaceae)
Genetic Variation Across the Natural Distribution of the South East Asian Pine, Pinus kesiya R OYLE ex GORDON (Pinaceae)
复制标题
东南亚松 (Pinus kesiya R OYLE ex GORDON)（松科）自然分布的遗传变异
作者：
H. Myburg;S. Harris
利用7种酶系统鉴定的12个同工酶位点，对9个居群（172个家系）的思茅松Pinuskesiya ROYLE ex DON的等位酶变异进行了研究。平均多态位点百分率为45.4%，平均等位基因数为1.6，平均遗传多样性为0.153。遗传多样性是最大的人口从东南部人口和西北部人口最低。在本研究中，GST（0.121）高于其他研究（GST =0.023和0.039），这些研究对地理范围的有限部分进行了采样。两种理论已被提出来解释目前的分布：（i）从南部通过马来西亚和菲律宾迁移;（ii）从北部迁移。基于同工酶分析的数据将支持从南方的移徙。
Allozyme variation has been assessed in 9 populations (172 families) of the economically important south east Asian pine Pinus kesiya ROYLE ex GORDON, from across its entire geographical range, using 12 isozyme loci identified by 7 enzyme systems. The mean percentage of polymorphic loci per population, the mean number of alleles per locus and the mean genetic diversity within populations were 45.4%, 1.6 and 0.153 respectively. Genetic diversity was greatest in populations from the south-eastern populations and lowest in north-western populations. In the present study GST (0.121) was high compared to other studies (G ST =0.023 and 0.039), that sampled a restricted part of the geographic range. Two theories have been proposed to explain the present distribution of P kesiya: (i) migration from the south through Malaysia and the Philippines; (ii) migration from the north. Data based on the analysis of isozymes would support migration from the south.