本文選題：MHC + 遺傳標(biāo)記　； 參考：《浙江農(nóng)業(yè)學(xué)報》2016年07期

【摘要】：應(yīng)用MHC B-L基因外顯子2直接測序的方法,對9個地方雞品種的遺傳多樣性進行研究。通過等位基因頻率對各群體的遺傳參數(shù)、群體間的Tajima-Nei遺傳距離和Maximum Likelihood遺傳距離進行計算,并采用鄰接法(NJ)和Fitch-Margoliash方法聚類。結(jié)果表明,導(dǎo)致9個地方雞品種群體間遺傳分化的主要原因為基因流,分析聚類的結(jié)果顯示,不同雞品種的分子系統(tǒng)發(fā)生關(guān)系與其地理分布和每個品種的育成史較一致。
[Abstract]:The genetic diversity of 9 local chicken breeds was studied by direct sequencing of exon 2 of MHC B-L gene. The genetic parameters of each population, Tajima-Nei genetic distance and Maximum Likelihood genetic distance among populations were calculated by allelic frequency. The results showed that the main cause of genetic differentiation among 9 local chicken breeds was gene flow. The results of cluster analysis showed that the molecular phylogenetic relationship of different chicken breeds was consistent with their geographical distribution and breeding history of each breed.
【作者單位】： 揚州大學(xué)動物科學(xué)與技術(shù)學(xué)院;中國農(nóng)業(yè)科學(xué)院北京畜牧獸醫(yī)研究所;河北唐縣農(nóng)業(yè)局;
【基金】：國家科技支撐計劃(2015BAD03B03) 中國農(nóng)業(yè)科學(xué)院科技創(chuàng)新工程(ASTIP-IAS04) 國家肉雞產(chǎn)業(yè)技術(shù)體系等(CARS-42)
【分類號】：S831.2
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本文編號：1911877