共查询到20条相似文献，搜索用时 31 毫秒
1.
试验采用PCR-RFLP方法检测脂滴包被蛋白(perilipin,PLIN)基因内含子6在济宁百日鸡、莱芜黑鸡等4个地方鸡种和1个培育品系中的遗传多态性,分析了多态位点不同基因型与鸡胴体及脂肪性状的相关性。结果发现,在5个供试群体中检测到1个多态位点,测序证实为新发现的鸡PLIN基因2 467 bp处G→A突变,该突变位点在供试群体中检测到3种基因型:A1A1、A1A2和A2A2,2个等位基因:A1和A2。等位基因A1在所有供试群体中均表现为优势等位基因。关联分析结果表明,PLIN基因2 467 bp位点对鸡部分胴体性状和脂肪性状影响显著(P<0.05)。多重比较结果表明,A1A1基因型个体活体重、屠体重、全净膛重、腹脂重和腹脂率均显著高于A2A2基因型个体(P<0.05)。A1A2基因型个体的胸肌肌内脂肪含量显著高于A1A1和A2A2基因型个体(P<0.05)。研究结果表明,PLIN基因对鸡胴体及脂肪性状有一定影响。 相似文献
2.
ZHOU Yan HAN Hai-xia LU Yan CAO Ding-guo LI Fu-wei LIU Wei GAO Jin-bo LEI Qiu-xia 《中国畜牧兽医》2015,42(10):2695-2700
The genetic polymorphisms in PLIN gene were detected by PCR-RFLP method in four Chinese local chickens including Jining Bairi chicken,Laiwu Black chicken et al.,and one breeding strain.The correlations between the SNP and the carcass and fatness traits were analyzed.As a result,a novel G→A mutation at 2 467 bp in PLIN gene was identified in the five populations.Three genotypes (A1A1,A1A2 and A2A2) were detected,and allele A1 was predominant in all the five experimental populations.The statistical analysis showed that the 2 467 bp polymorphism locus was significant association with some carcass and fatness traits (P<0.05).The living body weight,carcass weight,eviscerated weight,abdominal fat weight and percentage of abdominal fat of A1A1 genotype was higher than A2A2 genotype in chickens (P<0.05).The breast intramuscular fat of A1A2 genotype was higher than that of A1A1 and A2A2 genotypes in chickens (P<0.05).The results showed that PLIN gene had effect on carcass and fatness traits in chickens. 相似文献
3.
为揭示脂肪分化相关蛋白(adipose differentiation-related protein,ADFP)变化对家禽脂肪性状形成的作用,实验采用SYBRGreenΙ荧光定量法,首次测定了四川山地乌骨鸡1、14、28、42、56、70d和84d胸肌、肝脏、腹脂和皮脂组织中ADFP基因相对表达量。结果表明:ADFP基因表达量在28d,腹脂和肝脏中的表达量显著高于胸肌(P<0.05),且腹脂>肝脏>皮脂>胸肌;在42d,胸肌中的表达量显著高于皮脂(P<0.05),且胸肌>肝脏>腹脂>皮脂;在84d时,胸肌中的表达量显著高于肝脏中的(P<0.05),且胸肌>腹脂>肝脏。腹脂中ADFP基因的相对表达量的变化与活重和冠重性状的变化显著相关(P<0.05),胸肌中ADFP基因的相对表达量发育性的变化与肌内脂肪含量的变化显著相关(P<0.05)。ADFP基因可能在鸡脂肪性状形成的过程中发挥重要的调控作用。 相似文献
4.
本研究旨在寻找甲状腺激素应答蛋白Spot14α(thyroid hormone responsive Spot14α,THRSPα)基因的多态位点,并分析其对京海黄鸡屠体和腹脂性状产生的影响。针对THRSPα基因外显子区,利用PCR-SSCP结合测序技术对379只140日龄京海黄鸡进行SNP检测,结果发现,该基因第1外显子区存在9 bp插入缺失多态位点,形成3种基因型：AA、AB和BB,2种等位基因：A、B,基因频率分别为0.4485、0.5515。相关分析结果表明,该位点对京海黄鸡140日龄活重、屠体性状（包括屠体重、头重、脚重、翅重、胸肌重、腿肌重、全净膛重、半净膛重）和腹脂性状均没有显著影响(P>0.05)。因此推断该多态位点在京海黄鸡分子辅助标记育种中不能作为屠体和腹脂性状筛选的候选分子辅助标记。 相似文献
5.
Krüppel‐like factor 7 (KLF7) has been extensively studied in mammalian species, but its role in birds is still unclear. In the current study, cloning and sequencing showed that the full‐length coding region of chicken KLF7 (Gallus gallus KLF7, gKLF7) was 891 bp long, encoding 296 amino acids. In addition, real‐time RT‐PCR analysis showed that gKLF7 was broadly expressed in all 15 chicken tissues selected, and its expression was significantly different in spleen, proventriculus, abdominal fat, brain, leg muscle, gizzard and heart between fat and lean broilers at 7 weeks of age. Additionally, one novel single nucleotide polymorphism (SNP), XM_426569.3: c. A141G, was identified in the second exon of gKLF7. Association analysis showed that this locus was significantly associated with fatness traits in Arbor Acres broiler random population and the eighth generation of Northeast Agricultural University broiler lines divergently selected for abdominal fat content (NEAUHLF) population (P < 0.05). These results suggest that gKLF7 might be a candidate gene for chicken fatness traits. 相似文献
6.
长链酯酰辅酶A合成酶(ACSLs)是长链脂肪酸通过硫代酯化进而合成酰基辅酶A衍生物所必需的酶,也是脂肪酸代谢的第一步。哺乳动物ACSL家族由ACSL1、ACSL3、ACSL4、ACSL5和ACSL65个不同的成员组成,ACSL1是主要的异构体之一。为探讨黄羽肉鸡ACSL1基因作为腹脂性状分子标记的可行性,本实验采用PCR-直接测序技术对黄羽肉鸡ACSL1基因进行遗传多态性分析。结果显示:黄羽肉鸡ACSL1基因第17到第18外显子区域(1295 bp)SNPs位点较丰富,T32126C、C32013T、A31958G这3个位点的等位基因频率符合哈代-温伯格平衡,且A31958G突变位点、T32126C突变位点与腹脂重、腹脂率不相关,C32013T突变位点对鸡的腹脂重与腹脂率有显著影响,提示能够利用C32013T突变位点对黄羽肉鸡腹脂重进行分子标记辅助选择。 相似文献
7.
8.
以明星肉鸡和丝毛乌骨鸡杂交产生的F2资源群体为试验材料，根据鸡载脂蛋白AI（Apo-AI）基因的5’端序列设计引物，采用测序和PCR—SSCP方法进行SNP检测和基因型分析，探讨Apo-AI基因多态性与鸡生长和体组成性状之间的关系。研究发现在Apo-AI基因序列起始密码子ATG上游163bp处存在一个A／T突变。该突变产生的不同基因型与鸡生长和体组成性状进行的统计分析结果表明，BB基因型个体的1、2周龄体质量显著高于AA和AB基因型个体的相应体质量（P〈0．05）；BB基因型个体腹脂质量显著高于AA基因型个体的腹脂质量（P〈0．05）；BB和AB基因型个体的腹脂率显著高：于AA基因型个体的腹脂率（P〈0．05）。可以尝试将Apo-AI基因应用于鸡生长和腹脂性状的分子标记辅助选择育种方案中。 相似文献
9.
鸡的微卫星DNA标记与胴体性状的相关分析 总被引：4，自引：1，他引：3
测定了青脚麻鸡与隐性白鸡杂交后自交的F2代个体的全净堂重、全净堂率、脂肪宽带、腹脂重和腹脂率6个胴体性状,检测10个微卫星DNA标记,对标记基因型胴体性状值进行方差分析和多重比较,结果表明:MCW328对于10周龄体重和全净膛重两性状各基因型均有显著的差异(P<0.05);ADL292对于腹脂重性状各基因型有极显著的差异(P<0.01),对于腹脂率有显著的差异(P<0.05)。MCW328标记基因与控制10周龄体重和全净膛重QTL连锁,ADL292标记基因与控制腹脂重和腹脂率QTL连锁。 相似文献
10.
本试验采用PCR-RFLP方法检测脂滴包被蛋白基因(perilipin,PLIN)在济宁百日鸡、汶上芦花鸡等5个地方鸡种和1个培育品系中的遗传多态性,并分析了多态位点不同基因型与鸡胴体及脂肪性状的相关性。结果发现,在6个供试群体中检测到1个Pst Ⅰ酶切突变位点,测序证实为新发现的鸡PLIN基因2224 bp处G→T突变,该突变位点在供试群体中共检测到两种基因型(A1A1和A1A2),等位基因A1在所有供试群体中均表现为优势等位基因。关联分析结果表明,PLIN基因2224多态位点对鸡胴体性状和脂肪性状影响均不显著(P＞0.05)。多重比较结果表明,A1A1基因型个体在胴体和脂肪性状上总体优于A1A2基因型个体,但各性状均值在两种基因型个体间差异均不显著(P＞0.05)。本研究结果表明,该位点不能作为鸡胴体和脂肪性状的有效分子标记。 相似文献
11.
试验旨在研究类富脯氨酸5（proline rich 5 like，PRR5L）基因遗传变异对鸡脂肪性状及屠体性状的影响。以矮脚黄鸡为研究对象，根据GenBank公布的鸡PRR5L基因全序列（登录号：XM_015287209.1）设计扩增引物，利用PCR直接测序技术检测PRR5L基因的5'UTR区域单核苷酸多态性（SNPs），并用统计学方法分析其与鸡脂肪性状及屠体性状的关联性。结果发现，PRR5L基因5'UTR区域存在C480G、G514A和A579G 3个多态位点，均表现出3种基因型。χ2适合性检验结果发现，群体在G514A位点处于Hardy-Weinberg非平衡状态（P < 0.05）；在C480G和A579G位点均处于Hardy-Weinberg平衡状态（P > 0.05）。基因型与性状关联分析结果显示，在脂肪性状方面，PRR5L基因3个多态位点各基因型间腹脂重、腹脂率和肌内脂肪含量差异均不显著（P > 0.05）；在屠体性状方面，在G514A位点处AG与GG基因型的胸肌重差异显著（P < 0.05），其余指标差异均不显著（P > 0.05）。因此，可推断PRR5L基因5'UTR的G514A位点可能是一个影响鸡胸肌生长发育的位点，但该位点能否作为标识鸡屠体性状的分子标记辅助选择还需要进一步探究。 相似文献
12.
Insulin-like growth factor binding protein 2 regulates a broad spectrum of biological activities involved in growth, development, and differentiation. The current study was designed to investigate the associations of IGFBP2 gene polymorphisms with chicken growth and body composition traits. The Northeast Agricultural University Resource Population (NEAURP) was established by crossing broiler sires, derived from lines at Northeast Agricultural University, that were divergently selected for abdominal fat, with Baier layer dams, a Chinese local breed. The F1 birds were inter-crossed to produce an F2 population. Body weight and body composition traits were measured in the NEAURP. The PCR primers for the intron 2 region of IGFBP2 were designed based on chicken genomic sequence. Nucleotide polymorphisms between parental lines were detected by DNA sequencing. A C/T SNP in intron 2 was detected, and PCR-RFLP methods were then developed to genotype the F2 individuals. The results showed that the IGFBP2 SNP was associated with multiple traits, including BW, metatarsus length, shank length, femur length, shank weight, femur weight, metatarsus claw weight, and abdominal fat weight in the 1,028 NEAURP F2 individuals. This research suggests that IGFBP2 or a tightly linked gene has broad effects on growth and development in the chicken. 相似文献
13.
14.
贵州地方猪种UCP3基因多态性与肉质性状的相关性分析 总被引：4，自引：0，他引：4
解耦联蛋白3(uncoupling protein 3,UCP3)是调节能量和脂肪代谢的重要因子。以商品猪(杂交猪)为对照,采用SSCP方法对贵州地方猪品种糯谷猪和萝卜猪的UCP3基因进行了多态性分析。结果表明:3个猪群体中,都检测到了3种基因型(AA、BB、AB),χ2独立性检验结果显示,3种基因型在3个群体间的分布不一致,糯谷猪和萝卜猪以AB基因型为主,杂交猪以BB基因型占优势,杂交猪与地方猪种之间的差异显著(P<0.01);对纯合基因型的UCP3基因片段进行克隆测序,证实AA基因型中UCP3基因外显子6编码区第842位碱基发生了单碱基突变(T→C),导致编码的氨基酸从苏氨酸突变为甲硫氨酸。进一步分析3种基因型与胴体和肉质性状之间的相关性,证明AB基因型个体的肉质最优,贵州地方猪种的大理石纹、肌内脂肪含量和嫩度3项指标显著优于商品猪(P<0.01),因此推测UCP3基因与贵州地方猪种的肉质性状具有相关性,可能是贵州地方猪种肉质性状的候选基因。 相似文献
15.
以温氏育种公司黄鸡矮小型品系N30 1为材料 ,分析血浆VLDL浓度与腹脂性状间的关系 ,结果表明 :10周龄公母鸡血浆VLDL浓度的变异系数很大 ,分别为 4 9.86 %和 4 9.5 1% ;血浆VLDL浓度与脂肪性状间有较高程度的正表型相关 ,在公鸡中血浆VLDL浓度与皮脂重、皮脂率、腹脂重、腹脂率的表型相关系数分别为 0 .186 ,0 .117,0 .381和 0 .375 ,而在母鸡分别为 0 .2 2 8,0 .2 35 ,0 .2 5 8和 0 .2 5 2。血浆VLDL浓度可以作为矮小型鸡只体脂沉积性状的选种指标。 相似文献
16.
鸡GDF-5基因外显子1多态性与鸡骨骼发育性状的相关研究 总被引：1，自引：0，他引：1
根据GenBank发表的鸡GDF-5基因的mRNA序列设计引物，以白耳鸡和东北农业大学选育的肉鸡高、低腹脂系第8世代鸡群为试验材料，通过测序和PCR-SSCP的方法进行SNP检测和基因型分析，探讨GDF5基因多态性与鸡生长和骨骼发育性状之间的关系。结果发现在GDF-5基因外显子1的84bp处存在1个C／T的突变位点，对该突变位点在研究群体中进行基因型分析，结果产生3种基因型，AA型个体的基因序列和GenBank（Accession No：AF123389）中的一致为C，而BB型个体的基因序列在84bp处突变为T。基因型与鸡体组成性状的统计分析结果表明，AA基因型个体的跖骨围显著高于AB基因型个体（P〈0．05）；AA基因型和AB基因型个体的跖爪重和跖爪率显著高于BB基因型个体（P〈0．05）；AB基因型个体的股骨长和股骨重显著高于BB基因型个体（P＜0．05）；表明该基因对鸡的骨骼性状有较大的影响或与控制骨骼发育性状的主效基因相连锁。 相似文献
17.
试验旨在研究拜城油鸡公鸡中脂肪型脂肪酸结合蛋白（adipocyte fatty acid binding protein,A-FABP）基因的多态性及其与生产性能的相关性,寻找可用于拜城油鸡选育的分子遗传标记。随机选取92只6周龄拜城油鸡公鸡,采用PCR-RFLP方法检测A-FABP基因的多态性。每种基因型选取15只体重相近的个体随机分为3组,每组每种基因型个体各5只,分别在12、18、24周龄时屠宰并对生产性能指标进行测定。结果显示,在拜城油鸡公鸡中检测到A-FABP基因有3种基因型：AA、AB、BB,BB为优势基因型,B为优势等位基因,不符合哈代-温伯格平衡定律（P<0.01）。12周龄时,各基因型间各生产性能指标差异均不显著（P>0.05）;18周龄时,BB基因型肌间脂宽显著高于AA基因型（P<0.05）,BB和AB基因型腹脂重极显著高于AA基因型（P<0.01）,腹脂率显著高于AA基因型（P<0.05）;24周龄时,BB基因型体重、肌间脂宽、腹脂重均显著高于AA基因型（P<0.05）。推测A-FABP基因可以作为与拜城油鸡公鸡脂肪性状相关的候选标记之一。 相似文献
18.
In order to search the molecular genetic markers for breeding of Baicheng fatty chicken, the relationship between the polymorphism of adipocyte fatty acid binding protein (A-FABP) gene and the productive performance of the male chickens at different ages was studied. Ninety two chickens with age of 6 weeks were randomly selected. The polymorphism of A-FABP gene was detected by PCR-RFLP method. In each genotype group, fifteen chickens with similar body weight were categorized, each group was randomly divided into three sub-groups with equal numbers. The productive performance of the chickens was measured at their age of 12, 18 and 24 weeks. The results showed that there were three genotypes of A-FABP gene:AA,AB and BB, BB genotype was the dominant genotype,allele B was the advantageous allele,and it was not in Hardy-Weinberg equilibrium (P<0.01). At the age of 12 weeks,no significant difference was found among the measured productive performance (P>0.05). At the age of 18 weeks, it was found that the intramuscular fat width of BB genotype was significantly higher than AA genotype (P<0.05), the abdominal fat weight of BB and AB genotypes were extremely significantly higher than AA genotype (P<0.01),and the abdominal fat weight percentage of BB and AB genotypes were significantly higher than AA genotype (P<0.05). At the age of 24 weeks, it was found that the body weight, intramuscular fat width and abdominal fat weight of BB genotype were significantly higher than that of AA genotype (P<0.05). Therefore, this results suggested that A-FABP gene could be used as a potential candidate marker for the association of fatty traits in male Baicheng fatty chicken. 相似文献
19.
20.
解偶联蛋白(uncoupling protein,UCPs)是线粒体内膜上具有调节质子跨膜转运作用的载体蛋白,在调节动物能量代谢、脂肪沉积及脂肪酸氧化等方面起着重要作用。到目前为止,至少有5种(UCP1、UCP2、UCP3、UCP4和UCP5)这个家族的蛋白质已经在人类、哺乳动物、禽类、鱼甚至在植物的不同组织线粒体的内膜上被发现。UCPs在能量代谢动态平衡中、机体生热作用、肥胖、糖尿病及自由基代谢中起到重要的作用,解偶联蛋白基因已经被列为参与能量代谢和体温调节的候选基因。大量的研究报道了人类UCPs基因突变对脂肪代谢、糖尿病及其并发症、肥胖症的影响。作者从UCP1、UCP2及UCP3基因的定位、结构、分布、基因的多态突变与脂肪代谢、糖尿病及肥胖症之间的相关性研究进行了综述。 相似文献