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Polymorphisms of three gene-derived STS on pig chromosome 13q41 are associated with susceptibility to enterotoxigenic Escherichia coli F4ab/ac in pigs 被引量:8
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作者 HUANG Xiang 1 ,REN Jun 1 ,YAN XueMing 1,2 ,PENG QiuLing 1 ,TANG Huan 1 ,ZHANG Bo 1 ,JI HuaYuan 1 , YANG ShuJin1&HUANG LuSheng 1 1Key Laboratory for Animal Biotechnology of Jiangxi Province and the Ministry of Agriculture of China,Jiangxi Agricultural University, Nanchang 330045,China 2Department of Biology,Nanchang University of Science and Technology,Nanchang 330038,China 《Science China(Life Sciences)》 SCIE CAS 2008年第7期614-619,共6页
Neonatal diarrhea caused by enterotoxigenic Escherichia coli(ETEC)F4 is a common and serious disease,resulting in significant economical loss in the pig industry.The locus encoding ETEC F4 receptor has been mapped to ... Neonatal diarrhea caused by enterotoxigenic Escherichia coli(ETEC)F4 is a common and serious disease,resulting in significant economical loss in the pig industry.The locus encoding ETEC F4 receptor has been mapped to pig chromosome(SSC)13q41,and one of the most significantly linked markers is S0075.In this study,we selected three genes including SLC12A8,MYLK and KPNA1 from a chromosomal region flanking S0075 on SSC13 to develop pig specific sequence tagged sites(STS). Seven single nucleotide polymorphisms were identified in the three pig STS using DNA of four full-sib susceptible and resistant animals in a White Duroc×Erhualian intercross.All grandparents,parents and 755 offspring in the intercross were genotyped for three polymorphisms,including SLC12A8 g.159A>G,MYLK g.1673A>G and KPNA1 g.306A>G.Family-based transmission disequilibrium test(TDT) revealed that all polymorphisms and the corresponding haplotypes are significantly associated with ETEC F4ab/ac(especially F4ac)brush border adhesion phenotypes,indicating that these polymor- phism are in linkage disequlibrium with causal mutation(s)of the gene encoding ETEC F4ab/ac receptor. Our results strengthen the evidence for the involvement of SSC13q41 in high acquiring risk of ETEC F4ab/ac infection,and provide novel polymorphic markers for fine mapping of the ETEC F4ab/ac receptor locus. 展开更多
关键词 PIG SSC13q41 sequence tagged sites(STS) ESCHERICHIA coli(ETEC)f4ab/ac SUSCEPTIBILITY
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猪13号染色体q41区的3个功能基因STS多态性与产肠毒素大肠杆菌F4ab/ac易感性相关 被引量:1
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作者 黄翔 任军 +6 位作者 晏学明 彭秋玲 唐欢 张波 季华员 杨舒瑾 黄路生 《中国科学(C辑)》 CSCD 北大核心 2008年第3期271-276,共6页
由产肠毒素大肠杆菌(Escherichia coli)F4(ETEC F4)引起的断奶前仔猪腹泻病是一种常见细菌感染病,对养猪业造成了巨大经济损失.编码ETECF4ab/ac受体的位点已被定位于猪(Sus scrofa)13号染色体(SSC13)q41区域,S0075为最紧密连锁的标记之... 由产肠毒素大肠杆菌(Escherichia coli)F4(ETEC F4)引起的断奶前仔猪腹泻病是一种常见细菌感染病,对养猪业造成了巨大经济损失.编码ETECF4ab/ac受体的位点已被定位于猪(Sus scrofa)13号染色体(SSC13)q41区域,S0075为最紧密连锁的标记之一.本研究从S0075侧翼染色体区域选择了SLC12A8,MYLK和KPNA13个基因,建立猪特异性序列标签位点(STS).利用白色杜洛克×二花脸资源家系群体中的ETECF4ab/ac侵染抗性和易感个体,通过比较测序法,建立了这3个基因的STS,并鉴别到7个单核苷酸多态位点.进一步检测了白色杜洛克×二花脸资源家系群体祖代、亲本代和755头F2个体在SLC12A8g.159A>G,MYLKg.1673A>G和KPNA1g.306A>G多态位点的基因型.传递不平衡检测(TDT)分析表明:这些多态位点和相应的单倍型与ETEC F4ab/ac(特别是F4ac)刷状缘黏附表型存在显著相关,表明这些多态位点和单倍型与ETEC F4ab/ac受体的编码基因因果突变存在连锁不平衡.本研究进一步证实了SSC13q41存在ETEC F4ab/ac侵染易感性的遗传位点,为ETEC F4ab/ac受体基因的精细定位提供了新型多态标记. 展开更多
关键词 猪(Sus scrofa) SSC13q41 特异性序列标签位点(STS)ETEC f4ab/ac 易感性
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