›› 2018, Vol. 45 ›› Issue (12): 3486-3496.doi: 10.16431/j.cnki.1671-7236.2018.12.022

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Study on Genetic Diversity of Microsatellite Markers in Three Rabbit Breeds

YU Chunying, YANG Yanyan, ZHOU Jianhua, LIN Wei, WANG Xunli   

  1. Laboratory Animal Center, Fujjian Univesity of Traditional Chinese Medicine, Fuzhou 350122, China
  • Received:2018-04-25 Online:2018-12-20 Published:2018-12-21

Abstract:

This study was aimed to analyze the genetic variance in each breed and the genetic correlation among three rabbit breeds including Fujian Yellow rabbit,New Zealand rabbit and Japanese White rabbit.In this experiment,all blood samples were took from 25 rabbits of each breed,DNA from the blood was extracted by DNA extract kit.The target sequence was got using 15 microsatellite loci,fluorescent PCR and capillary electrophoresis.The genetic diversity of three rabbit breeds was discussed by calculating alleles,effective alleles,heterozygosity,polymorphic information content and genetic distance.The results showed that a total of 110 alleles were detected at 15 microsatellite loci in three rabbit breeds,and the average number of allele was 7.3.The number of alleles of Fujian Yellow rabbit,New Zealand rabbit and Japanese White rabbit were 95,95 and 88,respectively.The number of microsatellite loci with high polymorphism variability in three rabbit breeds were below:Fujian Yellow rabbit was 11,New Zealand rabbit was 12,Japanese White rabbit was 11,so the selected 15 microsatellite loci had rich polymorphic information in three rabbit breeds.The result of Hardy-Weinberg equilibrium test showed that 8 microsatellite loci deviated from the Hardy-Weinberg equilibrium in Fujian Yellow rabbit and New Zealand rabbit,and 6 microsatellite loci in Japanese White rabbit.Nei's genetic distance analysis showed that the genetic distances between Fujian Yellow rabbit and New Zealand rabbit,Fujian Yellow rabbit and Japanese White rabbit,New Zealand rabbit and Japanese White rabbit were 0.1761,0.2347 and 0.0432,respectively.The smaller genetic distance lead to the higher similarity and the closer genetic relationship.In a word,the genetic relationship between New Zealand rabbit and Japanese White rabbit was the most close in three rabbit breeds,and the genetic relationship between Fujian Yellow rabbit and Japanese White rabbit was the most distant in three rabbit breeds.

Key words: rabbit; microsatellite; genetic diversity

CLC Number: