摘要
为揭示江西及周边地区地方鸡的遗传多样性信息,本研究采集了江西省5个地方鸡品种,广东省、浙江省以及江苏省各1个地方鸡品种共125个血样,利用全基因组SNP芯片分析地方鸡品种的群体结构、网络关系及系统进化情况。结果表明,8个地方鸡品种45647个位点的多态信息含量大多为0.25<PIC<0.5,属于中度多态,表明这8个地方鸡品种有较丰富的遗传多样性;聚类分析表明,8个地方鸡品种有较弱的地理关系;品种间的遗传距离在0.2549~0.3609,修水黄羽乌鸡和泰和乌鸡的遗传距离为0.2549,东乡绿壳蛋鸡和崇仁麻鸡的遗传距离为0.3069。安义瓦灰鸡与其它品种的遗传距离在0.2747和0.3408之间,其中安义瓦灰鸡和修水黄羽乌鸡遗传距离最近,和崇仁麻鸡遗传距离最远。结果表明,8个地方鸡品种有较丰富的遗传多样性,为以后品种开发利用提供遗传素材;不同地区的地方鸡没有明显的地域差异,品种间没有显著的遗传分化,两个乌鸡品种(泰和乌鸡和修水黄羽乌鸡)和安义瓦灰鸡品种有相对较近的遗传关系。
In order to reveal the genetic diversity of local chicken breeds in Jiangxi and its surrounding areas,125 blood samples were collected from 5 local chicken breeds in Jiangxi province,1 in Guangdong province,1 in Zhejiang province and 1 in Jiangsu province.The population structure,network relationship and phylogeny of 8 local chicken breeds were analyzed by the whole genome SNP chip.The results showed that the polymorphic information content of the most of 45647 loci in 8 local chicken was 0.25<PIC<0.5,which was moderate polymorphic,indicated that the 8 local chicken breeds had rich genetic diversity.Cluster analysis showed that 8 local chicken breeds had weak geographical relationship,the genetic distance between breeds was 0.2549-0.3609,the genetic distance between Xiushui yellow feather blcak chicken and Taihe black-bone silky chicken was 0.2549,and that between Dongxiang green-eggshell layer and Chongren partridge chicken was 0.3069.The genetic distance between Anyi gray chicken and other breeds was between 0.2747 and 0.3408,among which the genetic distance between Anyi gray chicken and Xiushui yellow feather black chicken was the closest,and the genetic distance between Anyi gray chicken and Chongren partridge chicken was the furthest.The results indicated that the 8 local chicken breeds have rich genetic diversity,which can provide genetic material for future breed development and utilization.There was no significant genetic differentiation among the 8 local chicken breeds,two black chicken breeds(Taihe black-bone silky chicken and Xiushui yellow feather black chicken)and Anyi gray chicken have relatively close genetic relationship.
作者
武艳平
魏岳
康昭风
谢明贵
谢金防
WU Yanping;WEI Yue;KANG Zhaofeng;XIE Minggui;XIE Jinfang(Institute of Animal Science,Jiangxi Academy of Agricultural Sciences, Nanchang 330200, China)
出处
《畜牧兽医学报》
CAS
CSCD
北大核心
2022年第2期646-653,共8页
ACTA VETERINARIA ET ZOOTECHNICA SINICA
基金
江西省重点研发计划项目(20212BBF61011)
江西现代农业科研协同创新专项(JXXTCX202107)
国家自然科学基金(31060296)
江西省家禽产业技术体系(JXARS-09)
国家肉鸡产业技术体系(nycytx-42-Z09)。
关键词
地方鸡
全基因组SNP
遗传多样性
遗传距离
群体遗传结构
local chicken
whole genome SNP
genetic diversity
genetic distance
population genetic structure
