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迪庆藏猪ADFP基因多态性及其组织表达特征
引用本文:相德才,张斌,韩敏,刘韶娜,赵智勇,吴国权.迪庆藏猪ADFP基因多态性及其组织表达特征[J].南方农业学报,2021,52(10):2872-2879.
作者姓名:相德才  张斌  韩敏  刘韶娜  赵智勇  吴国权
作者单位:云南省畜禽遗传资源保护和种质创新工程实验室/云南省种猪性能测定站/云南省种猪质量检验测试中心/云南省畜牧兽医科学院, 昆明 650224
基金项目:云南省重大科技专项(202102AE090039);云南省基础研究计划项目(2017FD055,2018FD001);云南省畜牧兽医科学院基础研究项目(2019RW008)
摘    要:【目的】从分子遗传学角度分析不同基因型迪庆藏猪群体不同组织中ADFP基因的表达差异,为迪庆藏猪的选育工作提供参考依据。【方法】利用PCR扩增测序方法对113头迪庆藏猪ADFP基因进行扩增测序,利用DNA-STAR 5.0对序列进行比对分析及多态性位点(SNPs)检测;同时利用实时荧光定量PCR方法对迪庆藏猪不同组织中ADFP基因相对表达量进行检测,并运用SPSS 20.0分析ADFP基因多态性对迪庆藏猪群体不同组织中ADFP基因表达水平的影响。【结果】在迪庆藏猪ADFP基因外显子6上发现3个SNPs,分别为SNP1(C→T)、SNP2(C→T)和SNP3(T→ C),其中SNP1和SNP2位点属于低度多态(PIC/He<0.25),SNP3位点属于中度多态(0.25He<0.5)。迪庆藏猪不同组织中ADFP基因相对表达量存在显著差异(P<0.05,下同),皮下脂肪中相对表达量最高,其次为肺脏、肝脏、脾脏、肾脏、腿肌和背肌,心脏中相对表达量最少;另外,ADFP基因SNPs不同基因型迪庆藏猪群体中各组织的相对表达量也存在显著差异,尤其在SNP2位点杂合基因型群体肾脏中相对表达量显著高于纯合基因型群体肾脏中相对表达量,表明ADFP基因SNPs变异对迪庆藏猪组织中ADFP基因表达具有影响。【结论】ADFP基因SNPs变异对迪庆藏猪组织中ADFP基因会产生差异表达,进而影响机体脂肪沉积,ADFP基因可作为迪庆藏猪肌内脂肪沉积的候选基因。

关 键 词:迪庆藏猪    ADFP基因    多态性    脂肪沉积
收稿时间:2020-11-25

The polymorphism and its expression characteristics in the tissues of ADFP gene in Diqing Tibetan pig
XIANG De-cai,ZHANG Bin,HAN Min,LIU Shao-na,ZHAO Zhi-yong,WU Guo-quan.The polymorphism and its expression characteristics in the tissues of ADFP gene in Diqing Tibetan pig[J].Journal of Southern Agriculture,2021,52(10):2872-2879.
Authors:XIANG De-cai  ZHANG Bin  HAN Min  LIU Shao-na  ZHAO Zhi-yong  WU Guo-quan
Affiliation:Yunnan Provincial Engineering Laboratory of Animal Genetic Resource Conservation and Germplasm Enhancement/Yunnan Breeding Pig Performance Test Station/Yunnan Breeding Pig Quality Inspection and Test Center/Yunnan Animal Science and Veterinary Institute, Kunming 650224, China
Abstract:【Objective】This study aimed to analyze the expression difference of ADFP gene in different tissues of Diqing Tibetan pig with different genotypes from the perspective of molecular genetics, so as to provide a reference for breeding of Diqing Tibetan pig.【Method】In this study, the ADFP gene of 113 Diqing Tibetan pigs were amplified using PCR and sequenced, and the sequence alignment and the polymorphic sites(SNPs) were detected with DNASTAR 5.0. Meanwhile, the real-time fluorescence quantitative PCR(qPCR) was used to detect the relative expression of the ADFP gene in tissues of Diqing Tibetan pigs, and the SPSS 20.0 was used to analyze the effect of ADFP gene polymorphism on its expression in the tissues of Diqing Tibetan pigs.【Result】Three SNP1(C→T), SNP2(C→T) and SNP3(T→C) were found on exon 6 of ADFP gene in Diqing Tibetan pig, and SNP1 and SNP2 were low polymorphic(PIC/He<0.25) and SNP3 was moderate polymorphic(0.25
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