乌拉尔南部栎的遗传分化

IF 1.1 4区农林科学 Q3 FORESTRY

Silvae Genetica Pub Date : 2019-01-01 DOI:10.2478/sg-2019-0019

B. Degen, R. Yanbaev, Y. Yanbaev

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引用次数: 11

摘要

摘要对200棵有花序栎树9个核微卫星基因位点的遗传组成进行了研究。我们在乌拉尔南部1100公里乘400公里的区域内对9个地点进行了采样。问题是分析物种分布区东南边缘的橡树的遗传分化。我们观察到与物种分布范围中心的值相比，遗传分化和固定值相对较高(δ =0.387, FST=0.0652, FST(Hedrick)=0.407)。贝叶斯聚类分析显示了三个遗传群。在所有地点都检测到所有遗传群的存在，但乌拉尔山脉最东部的橡树遗传差异最大。我们假设遗传漂变影响了观察到的模式。

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Genetic differentiation of Quercus robur in the South-Ural

Abstract We studied the genetic composition of 200 pedunculate oak (Quercus robur) trees at nine nuclear microsatellite gene loci. We sampled nine locations in an area of 1100 km by 400 km in the South-Ural. The question was to analyse the genetic differentiation of the oaks at the south-east edge of the species distribution area. We observed relatively high values of genetic differentiation and fixation (delta=0.387, FST=0.0652, FST(Hedrick)=0.407) compared to values from the centre of the species distribution range. Bayesian clustering analysis revealed three genetic groups. Presence of all genetic groups was detected at all locations, but oak trees in the extreme east of the Ural Mountains were genetically most different. We hypothesise that genetic drift influenced the observed pattern.

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来源期刊

Silvae Genetica 农林科学-林学

CiteScore

2.20

自引率

10.00%

发文量

审稿时长

3 months

期刊介绍： Silvae Genetica is an international peer reviewed journal with more than 65 year tradition and experience in all fields of theoretical and applied Forest Genetics and Tree breeding. It continues "Zeitschrift für Forstgenetik und Forstpflanzenzüchtung" (Journal of Forest Genetics and Forest Tree Breeding) founded by W. LANGNER in 1951.