Population genetics of a polyploid:: Is there hybridization between lineages of Hyla versicolor?
Population genetics of a polyploid:: Is there hybridization between lineages of Hyla versicolor?
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DOI：
10.1093/jhered/93.2.81
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发表时间：
2002-03-01
影响因子：
3.1
通讯作者：
Noor, MAF
中科院分区：
文献类型：
--
作者：
Espinoza, NR;Noor, MAF
几项研究表明，多倍体物种可以从它们的祖先循环形成，但很少有研究评估所得多倍体谱系之间的基因流动。在这里，我们研究了四倍体普通灰树蛙（Hyla versicolor）谱系之间杂交的可能性。我们利用聚合酶链反应（PCR）克隆方法来估计四倍体个体的基因型，并测量（1）两个谱系的同域群体和（2）单一谱系的异域群体之间的遗传分化。我们发现，等位基因频率在同域种群的两个谱系没有不同，这表明这两个谱系的青蛙杂交的地区，他们共同出现。
Several studies have demonstrated that polyploid species can form recurrently from their progenitors, but few studies have evaluated gene flow between the resultant polyploid lineages. Here we examine the possibility of hybridization between lineages of the tetraploid common gray treefrog (Hyla versicolor). We utilize a polymerase chain reaction (PCR) cloning approach to estimate the genotypes of tetraploid individuals and measure genetic differentiation between (1) sympatric populations of two lineages and (2) allopatric populations of a single lineage. We find that allele frequencies in sympatric populations of two lineages do not differ, suggesting that frogs of these two lineages hybridize in areas where they co-occur.