期刊
FOREST ECOLOGY AND MANAGEMENT
卷 189, 期 1-3, 页码 123-131出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.foreco.2003.07.032
关键词
Quercus petraea; Quercus robur; chloroplast DNA; phylogeography
类别
The first phylogeographical description of oak populations in Ireland is presented and discussed in an European context. Using chloroplast DNA PCR-RFLP, a geographical genetic structure was obtained for oak populations across the island of Ireland. Two chloroplast haplotypes, 10 and 12, predominated and most populations were fixed for a single haplotype. The distribution of haplotypes within the species was shown to be unequal in Quercus petraea and more equal in Quercus robur. Haplotype 12 predominated in Q. petraea and haplotype 10 was more evenly distributed between the two species. Haplotype diversity is lower than in Britain and much lower than in France or Spain. We ascribe this to Ireland's isolation and hence to limited 'founder' populations. The haplotype distribution was used to infer possible postglacial migration routes of oak into Ireland. The putative migration routes confirm those deduced from palaeoecological data and give further information on the dynamics of invasion. While the origin of the haplotypes is confirmed to be the Iberian Peninsula refugium, the proposed routes of migration into Ireland are still tentative. (C) 2003 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据