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高原鼢鼠微卫星多态位点筛选及其通用性检测
引用本文:康宇坤,张德罡,谭宇尘,王海芳,蔡卓山,苏军虎.高原鼢鼠微卫星多态位点筛选及其通用性检测[J].草原与草坪,2018(2):56-60.
作者姓名:康宇坤  张德罡  谭宇尘  王海芳  蔡卓山  苏军虎
作者单位:甘肃农业大学草业学院/草业生态系统教育部重点实验室/甘肃省草业工程实验室/中-美草地畜牧业可持续发展研究中心,甘肃兰州 730070;甘肃农业大学-新西兰梅西大学草地生物多样性研究中心,甘肃兰州 730070 甘肃农业大学-新西兰梅西大学草地生物多样性研究中心,甘肃兰州,730070
基金项目:国家自然科学基金项目(31460566;31760706),甘肃省杰出青年基金项目(1606RJDA314),中国博士后科学基金特别资助项目(2016T90958),甘肃省教育厅科研项目(2015A-073)
摘    要:跨种扩增是微卫星DNA标记获取的快捷有效途径之一。为了筛选出高原鼢鼠微卫星多态性位点,从已开发微卫星信息的鼹形鼠科和甘肃鼢鼠物种中进行了高原鼢鼠微卫星多态性位点及其通用性研究,结果表明:在87对微卫星位点中,只有54对进行了成功扩增,多态位点仅有9个,27个鼹形鼠科物种的微卫星在高原鼢鼠中并没有多态性,9个多态位点全来自于同属的甘肃鼢鼠。基于获得的9个多态位点,检测到高原鼢鼠的等位基因数在4~12,其平均观测杂合度(Ho)为0.544,期望杂合度(He)为0.671,多态信息含量为0.551,研究为高原鼢鼠的微卫星标记应用奠定了基础。

关 键 词:高原鼢鼠  微卫星  多态位点筛选  通用性  Eospalax  baileyi  microsatellite  marker  cross-amplification  transferability

Isolation of microsatellite markers by cross-amplification and transferability analysis in Eospalax baileyi
KANG Yu-kun,ZHANG De-gang,TAN Yu-chen,WANG Hai-fang,CAI Zhuo-shan,SU Jun-hu.Isolation of microsatellite markers by cross-amplification and transferability analysis in Eospalax baileyi[J].Grassland and Turf,2018(2):56-60.
Authors:KANG Yu-kun  ZHANG De-gang  TAN Yu-chen  WANG Hai-fang  CAI Zhuo-shan  SU Jun-hu
Abstract:Cross-amplification is one of the quickest and effective methods of obtaining microsatellite markers.In this study,we amplified microsatellite loci of Eospalax baileyi using published microsatellite DNA primers from related species,and tested both transferability and polymorphism.The results showed that 54 out of 87 loci were successfully amplified,meanwhile only nine polymorphic loci were obtained.27 loci from Spalax species showed only two alleles and nine polymorphic loci were all obtained from Gansu zokor.Genetic diversity of plateau zokor populations was relatively medium.The number of alleles (NA) ranged from 4 to 12 (average 5.5),PIC value was 0.551,and the ranges of observed (Ho) and expected (He) heterozygosities were 0.544 and 0.671,respectively.The results will facilitate the further studies in microsatellite markers of E.bailyei.
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