猪5个群体SLA微卫星遗传多样性

doi:10.3724/SP.J.1005.2012.01427

遗传 ›› 2012, Vol. 34 ›› Issue (11): 1427-1433.doi: 10.3724/SP.J.1005.2012.01427

猪5个群体SLA微卫星遗传多样性

于辉¹, 刘荣辉^{1, 4}, 李华¹, 左启祯¹, 李岩², 吴珍芳³

1. 佛山科学技术学院动物科学系, 南海 528231 2. 广东东莞畜牧研究所, 东莞 511700 3. 华南农业大学动物科技学院, 广州510642 4. 开县畜牧兽医局, 重庆405400

收稿日期:2012-08-23 修回日期:2012-10-21 出版日期:2012-11-20 发布日期:2012-11-25
通讯作者: 李华 E-mail:okhua4@yahoo.com.cn
基金资助:
广东省高等学校高层次人才项目, 广东省重大科技攻关项目(编号：2008020100001-5), 广东省科技攻关(编号：2007B020706001)和广东现代生猪产业体系资金资助

Genetic diversity based on swine leukocyte antigen complex mi-crosatellites(SLA-MS) in five pig populations

YU Hui ¹, LIU Rong-Hui^1,4, LI Hua¹, ZUO Qi-Zhen¹, LI Yan², WU Zhen-Fang³

1. Department of Animal Science, Foshan University, Nanhai 528231, China 2. Dongguan Institute of Animal Science, Dongguan 511700, China 3. College of Animal Science and Technology of South China Agricultural University, Guangzhou 510642, China 4. The Kai Xian Bureau of Husbandry and Veterinary, Chongqing 405400, China

Received:2012-08-23 Revised:2012-10-21 Online:2012-11-20 Published:2012-11-25

摘要/Abstract

摘要： 文章旨在比较广东地方猪、华南野猪(S.s. chirodontus)和引入品种白细胞抗原复合体(Swine leukocyte antigen complex, SLA)的遗传多样性, 为猪的抗病选育提供理论依据。在SLA区域内选取18个多态性丰富的微卫星(SLA-MS), 分别对皮特兰、杜洛克、大花白、蓝塘猪以及华南野猪进行遗传分型。结果表明, SLA不同区域平均遗传多样性高低依次为SLA Ⅱ (He=0.628, PIC=0.581)> SLA Ⅰ (He=0.530, PIC=0.474)> SLA Ⅲ (He=0.526, PIC=0.458); 5个群体间分子多样性指数(MDI)依次为华南野猪(0.716)>蓝塘猪(0.614)>大花白(0.559)>皮特兰(0.550)>杜洛克(0.507)。总体看来, SLA-MS的遗传多样性高低依次为华南野猪>广东地方猪>引入品种。基于Garza-Williamson 指数(GWI)分析, 杜洛克和大花白相较于华南野猪瓶颈效应严重; 遗传距离分析表明蓝塘猪和华南野猪首先聚为一类, 然后与大花白聚为一大类, 而皮特兰和杜洛克则单独聚为一支。文章为广东地方猪种质资源的保护、抗病选育和配套系的生产提供了理论基础。

关键词: 猪白细胞抗原复合体, 微卫星, 遗传多样性

Abstract: The genetic diversity of swine leukocyte antigen complex (SLA) was studied among Guangdong local pigs, Huanan wild boars (S.s. chirodontus) and introduced pigs, which aimed at providing a theoretical foundation for further pig anti-disease resistance breeding. Pietrain pigs, Duroc pigs, Large black-white pigs, Lantang pigs, and Huanan wild boars were genotyped by employing 18 microsatellites in swine leukocyte antigen complex (SLA-MS). The result showed that the average diversity in SLA II was higher (He=0.628, PIC=0.581) than that in SLA I (He=0.530, PIC=0.474) and in SLA III (He=0.526, PIC=0.458). The molecular diversity indices (MDI) of Huanan wild boars was the highest(0.716), followed by Lantang pigs (0.614), Large black-white pigs (0.559), Pietrain pigs (0.550) and Duroc pigs (0.507). As a whole, the genetic diversity of Huanan wild boars was the highest over Guangdong native pigs and introduced pigs. Large black-white pigs and Duroc pigs had ever happened a severe bottleneck by comparison with the Garza-Williamson index (GWI) in Huanan wild boar. From the genetic distance, one clade was that Lantang pigs were first clustered with Huanan wild boar, and then grouped together with Large black-white pigs; another clade was that Pietrain pigs were independently clustered with Duroc pigs in the NJ tree. The results would establish the foundation for pig conservation of germplasm resource, disease resistance breeding, and multiplicative strains.

Key words: swine leukocyte antigen complex (SLA), microsatellites, genetic diversity

于辉，刘荣辉，李华，左启祯，李岩，吴珍芳. 猪5个群体SLA微卫星遗传多样性[J]. 遗传, 2012, 34(11): 1427-1433.

YU Hui LIU Rong-Hui LI Hua ZUO Qi-Zhen LI Yan WU Zhen-Fang. Genetic diversity based on swine leukocyte antigen complex mi-crosatellites(SLA-MS) in five pig populations[J]. HEREDITAS, 2012, 34(11): 1427-1433.

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猪5个群体SLA微卫星遗传多样性

Genetic diversity based on swine leukocyte antigen complex mi-crosatellites(SLA-MS) in five pig populations

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