Jiang Nengjing, Liu Chenxi, Lan Tingxu, Zhang Qian, Cao Yang, Pu Guang, Niu Peipei, Zhang Zongping, Li Qiang, Zhou Juan, Li Xiaokui, Hou Liming, Huang Ruihua, Li Pinghua
Institute of Swine Science, Nanjing Agricultural University, Nanjing 210095, China.
Huaian Academy, Nanjing Agricultural University, Huaian 223005, China.
Animals (Basel). 2020 Mar 13;10(3):484. doi: 10.3390/ani10030484.
The vertnin () gene g.20311_20312ins291 was reported as an important variant related to the number of ribs (RIB), and the ins/ins genotype was advantageous for improving RIB of Western pigs. The purpose of this study was to determine whether the gene g.20311_20312ins291 influences RIB, carcass traits, and body size traits, including cannon bone circumference (CBC) in Chinese Suhuai pigs. We found that the gene g.20311_20312ins291 was polymorphic in Suhuai fattening pigs and gilts. The polymorphism of g.20311_20312ins291 was significantly associated with RIB and CDL in Suhuai fattening pigs ( < 0.01), whereas this variant had no influence on carcass weight (CWT). There was a tendency of association between this variant and carcass straight length (CSL) in Suhuai fattening pigs ( = 0.06). The polymorphism of g.20311_20312ins291 was also significantly associated with CBC in Suhuai gilts ( = 0.04). Furthermore, CBC was positively genetically correlated with body length (0.22, < 0.01) and body weight (0.15, < 0.01). Our results indicated that the gene g.20311_20312ins291 could be used as a potential marker for improving RIB, CDL, and CBC in Suhuai pigs.
vertnin（）基因g.20311_20312ins291被报道为与肋骨数量（RIB）相关的一个重要变异，且ins/ins基因型有利于提高西方猪的肋骨数量。本研究的目的是确定基因g.20311_20312ins291是否影响中国苏淮猪的肋骨数量、胴体性状和体尺性状，包括管围（CBC）。我们发现基因g.20311_20312ins291在苏淮育肥猪和后备母猪中具有多态性。g.20311_20312ins291的多态性与苏淮育肥猪的肋骨数量和胸腰椎间盘长度（CDL）显著相关（P<0.01），而该变异对胴体重（CWT）没有影响。在苏淮育肥猪中，该变异与胴体长（CSL）存在关联趋势（P = 0.06）。g.20311_20312ins291的多态性在苏淮后备母猪中也与管围显著相关（P = 0.04）。此外，管围与体长呈正遗传相关（0.22，P<0.01），与体重呈正遗传相关（0.15，P<0.01）。我们的结果表明，基因g.20311_20312ins291可作为提高苏淮猪肋骨数量、胸腰椎间盘长度和管围的潜在标记。
