THE GEOGRAPHICAL-DISTRIBUTION OF GENETIC-VARIATION OF SILVER FIR (ABIES-ALBA, PINACEAE) IN RELATION TO ITS MIGRATION HISTORY
THE GEOGRAPHICAL-DISTRIBUTION OF GENETIC-VARIATION OF SILVER FIR (ABIES-ALBA, PINACEAE) IN RELATION TO ITS MIGRATION HISTORY
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DOI：
10.1007/bf00985333
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发表时间：
1995-01-01
影响因子：
1.9
通讯作者：
BERGMANN, F
中科院分区：
文献类型：
--
作者：
KONNERT, M;BERGMANN, F
银冷杉目前分布在东欧、西欧、南欧和中欧的许多山区。为了阐明欧洲不同地区冷杉种群的地理分布历史，对来自48个种源98个单株的种子或幼芽样品的8个酶基因座的地域特异性等位基因分布和7个多态性酶基因座的等位基因频率分布进行了研究。由于位于古冰川退缩区附近的不同种群之间存在巨大的遗传差异，因此得出结论，末次冰期时银冷杉在5个避难所中存活，但仅从3个避难所迁移到其现在的自然分布区。独特的等位基因在特定的冷杉地区的发生表明其向北迁移的路线和存在的几个渐渗区，其中银冷杉从不同的避难所已经满足在其扩展。
Silver fir presently occurs in many mountainous regions of eastern, western, southern and Central Europe. In order to elucidate the biogeographic history of fir populations in different European areas, the distribution of area-specific alleles at eight enzyme loci and the allele frequency distributions at seven polymorphic enzyme loci were investigated in seed or bud samples from 48 provenances comprising 98 single stands. Due to great genetic divergence among different populations located near the ancient glacial retreats, it was concluded that silver fir survived in five refugia during the last glaciation but migrated from only three refugia to its present natural range. The occurrence of unique alleles in particular fir areas indicated its migratory routes to the north and the existence of a few introgression zones where silver fir from different refugia has met during its expansion.