Allozyme diversity and the evolution ofSymplocos (Symplocaceae) on the Bonin (Ogasawara) Islands
Allozyme diversity and the evolution ofSymplocos (Symplocaceae) on the Bonin (Ogasawara) Islands
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小笠原群岛山矾（Symplocaceae）的同种酶多样性和进化
DOI：
10.1007/bf02344248
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发表时间：
1994
影响因子：
2.8
通讯作者：
M. Ono
中科院分区：
文献类型：
--
作者：
A. Soejima;H. Nagamasu;M. Ito;M. Ono
为研究海岛植物的起源和物种形成，对小笠原群岛的三种特有种山矾进行了电泳分析。kuroki，黑脉叶蝉S. nakaharaeandS. tanakae被认为与小笠原特有种关系密切。有3个种：S. kawakamii，川上氏隐翅虫S. pergracilisandS.博宁本文对小笠原群岛上的一种被认为是多样化的山矾属的7个酶系统进行了分析，推测它们由18个位点编码。与夏威夷和小笠原群岛的一些海岛植物的遗传多样性报道一致，海岛植物的遗传多样性较低。这三个地方品种具有很高的遗传一致性，它们在UPGMA聚类树中聚在一起，表明它们是一个单系群，即它们是由一次引种引起的。
To study the origin and speciation of plants in oceanic islands, electrophoretic analyses have been done on three endemic species ofSymplocosin the Bonin Islands as well as on three other species;S. kuroki, S. nakaharaeandS. tanakaewhich are considered to be closely related to the Bonin endemics. There occur three species:S. kawakamii, S. pergracilisandS. boninensisin Bonin. The genusSymplocosis one which is considered to be diversified in the Bonin Islands.Seven enzyme systems presumed to be encoded by 18 loci were examined. The genetic diversity was low in the island species, as reported in some oceanic island plants of Hawaii and the Bonin Islands. The three endemics share high genetic identities and they clustered together in the tree drawn by the UPGMA method, suggesting that they are a monophyletic group, that is, they result from a single introduction.