Analysis of genetic distribution and population genetic structure of the MyoD gene in 10 pig breeds |
| |
Authors: | Li Zhu Xuewei Li Surong Shuai Mingzhou Li Fangqiong Li Lei Chen |
| |
Institution: | (1) College of Animal Science and Technology, Sichuan Agricultural University, Ya’an, 625014, China |
| |
Abstract: | Restriction fragment length polymorphism (RFLP) data was applied to analyze the distribution of the MyoD gene in 10 pig breeds and pig breed crosses. The population genetic information about genetic distribution, variation, and
heterozygosity of the MyoD gene in different breed populations were analyzed. Based on the allele frequency, genetic distance and evolution distance
among each breed populations were calculated and Unweighted Pair Group Method with Arithmetic mean (UPGMA) phylogenetic tree
was gained based on the evolution distances between populations. The results indicated that the distribution of the MyoD genotype kept in Hardy-Weinberg equilibrium in most tested groups but not in Duroc (D) and Duroc6(Landrance × Yorkshire)
(DLY) population. Generally, the genetic diversity of the MyoD gene was abundant and these tested breed populations had high genetic variations. The evolution of the MyoD gene was under
natural selection pressure. On the phylogenetic tree, 10 pig breeds were divided into 4 clusters. The first cluster consisted
of four breeds developed from Landrace. The second cluster was two indigenous Chinese pig breeds. The third cluster was three
breeds developed from Duroc. The fourth cluster was a Tibetan pig breed. The constitution of the topology of the phylogenetic
tree was consistent with the breeding history of each pig breed. From this experiment, we can conclude that some RFLP data
obtained from functional gene can be used in the genetic deviation research between some closely related species or between
different populations in certain species.
__________
Translated from Acta Veterinaria et Zootechnica Sinica, 2007, 38(1): 1–7 译自: 畜牧兽医学报] |
| |
Keywords: | pig MyoD gene genetic diversity phylogenesis |
本文献已被 万方数据 SpringerLink 等数据库收录! |
|