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为了从分子水平上揭示朝鲜鹌鹑、中国黄羽鹌鹑、中国黑羽鹌鹑3个鹌鹑群体的遗传结构和亲缘关系,为鹌鹑的遗传资源研究提供科学依据,本研究采用PCR扩增、聚丙烯酰胺凝胶电泳、聚类分析等方法对3个鹌鹑群体进行了微卫星标记的多态性分析。结果表明,12个微卫星标记在3个鹌鹑群体中检测到的观测等位基因数在4~7个之间,中国黄羽鹌鹑、中国黑羽鹌鹑、朝鲜鹌鹑的平均多态信息含量分别为0.6853、0.6401和0.6565;平均期望杂合度分别为0.7333、0.6957和0.7111,以中国黄羽鹌鹑群体遗传多态样性最为丰富。聚类分析结果表明,中国黑羽鹌鹑和朝鲜鹌鹑的遗传距离最小为0.0628,因此中国黑羽鹌鹑和朝鲜鹌鹑先聚为一类,而后与中国黄羽鹌鹑聚合在一起。这也更进一步证明了中国黑羽鹌鹑和朝鲜鹌鹑有更近的亲缘关系,而中国黑羽鹌鹑,朝鲜鹌鹑与中国黄羽鹌鹑的亲缘关系要远一些。 相似文献
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家禽的羽色遗传一直是炙手可热的研究课题,因为羽色是禽类一种重要的质量性状。本研究利用聚丙烯凝胶电泳技术对不同羽色的4个鹌鹑群体(中国黄羽鹌鹑、黑羽鹌鹑、朝鲜鹌鹑、北京白羽鹌鹑)进行野灰相关蛋白基因(agouti-related protein,Agrp)外显子Ⅰ的多态性检测,探讨Agrp外显子Ⅰ与鹌鹑羽毛颜色的关系,为鹌鹑的育种及生产提供参考。结果表明,Agrp外显子Ⅰ在中国黄羽鹌鹑、黑羽鹌鹑、朝鲜鹌鹑、北京白羽鹌鹑群体中都检测到了2个等位基因,分别用A和B表示。等位基因A在北京白羽鹌鹑中的基因频率最高,达到了0.9500。B等位基因在朝鲜鹌鹑中的频率最高,达到了0.3392,在北京白羽鹌鹑中的基因频率最低,只有0.0500。基因型AA在北京白羽鹌鹑中的基因型频率最高(0.9500),在朝鲜鹌鹑和黑羽鹌鹑中最低(0.4286)。基因型AB在北京白羽鹌鹑中没有出现。测序发现,在黑羽鹌鹑和朝鲜鹌鹑中有AG的杂合位点,而在北京白羽鹌鹑中只有G位点。推测Agrp外显子Ⅰ的AB基因型(或B等位基因)与鹌鹑的黑羽色可能有一定关系。 相似文献
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《黑龙江畜牧兽医》2020,(4)
为了探讨雌激素受体基因(ESR)多态性对鹌鹑早期生长性能的影响,试验采用PCR-RFLP法,对3个鹌鹑群体(中国黄羽鹌鹑、朝鲜鹌鹑、北京白羽鹌鹑)进行ESR1基因外显子8的多态性检测,并与鹌鹑早期生长性能进行关联分析。结果表明:ESR1基因外显子8在3个鹌鹑群体中均检测到3种基因型,分别为TT、CC、CT基因型,ESR1基因外显子8在北京白羽鹌鹑和朝鲜鹌鹑中都以TT基因型频率为最高(0.708和0.500),而在中国黄羽鹌鹑中以CT基因型频率为最高(0.521)。在中国黄羽鹌鹑群体中CC基因型的体重、胸宽、胸深、胸骨长、体长显著性高于TT基因型(P0.05);朝鲜鹌鹑的TT基因型胫长和体重显著高于CC基因型(P0.05);鹌鹑ESR1外显子8多态性对北京白羽鹌鹑的早期生长性能无显著影响(P0.05)。说明ESR1基因可以作为有价值的候选基因应用于蛋用鹌鹑的分子标记辅助选择。 相似文献
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催乳素受体(PRLR)通过与催乳素结合,介导包括动物泌乳和繁殖在内的多种生理功能.本研究以2个肉用鹌鹑群体(法国巨型肉用鹌鹑、莎维麦脱肉用鹌鹑)为研究对象,利用PCR-RFLP技术和测序技术检测PRLR基因在以上2个鹌鹑群体中的多态性.结果表明,法国巨型肉用鹌鹑CC基因型频率为0.165,CT基因型频率为0.032,TT基因型频率为0.803,其等位基因频率C为0.181,T为0.819;莎维麦脱肉用鹌鹑CC基因型频率为0.217,CT基因型频率为0.041,TT基因型频率为0.742,其等位基因频率C为0.238,T为0.762. 相似文献
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本研究旨在加速分子标记在黑羽鹌鹑遗传育种等方面的应用,开发黑羽鹌鹑的EST-SSR标记。随机选取100只黑羽鹌鹑,心脏采血2mL,采用生物信息学方法开发黑羽鹌鹑的EST-SSR新标记,并检测EST-SSR标记在黑羽鹌鹑群体中的多态性。结果显示,在黑羽鹌鹑中成功的开发出了6个EST-SSR标记,EST-SSR标记检测到的观测等位基因数为2~6个,6个EST-SSR标记在黑羽鹌鹑的平均多态信息含量(PIC)为0.4962,平均期望杂合度(He)为0.5759。6个EST-SSR标记中P1和P2个为高度多态标记,其他4个EST-SSR为中度多态标记。新开发的6个EST-SSR标记可用于黑羽鹌鹑的遗传多样性分析,6个EST-SSR标记与鹌鹑的糖类代谢、黑色素的合成等有关系,但具体的机理还有待进一步分析。 相似文献
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以MC3R基因为候选基因,根据鸡的MC3R基因序列(GenBank登录号:AB017137)在编码区设计2对引物,采用PCR-SSCP和DNA测序技术检测该基因在蛋用鹌鹑群体中的单核苷酸多态性(SNPs),同时对候选基因与鹌鹑体重的相关性进行分析。结果表明,鹌鹑MC3R基因在所测序列的27(G→A)和138(C→T)碱基处发生了2个突变,检测到AA、BB、CC、AB、AC、BC6种基因型;A等位基因频率为0.347,B等位基因频率为0.218,C等位基因频率为0.435。方差分析结果显示,MC3R基因型显著影响公、母鹌鹑的体重。因此推测MC3R基因可以作为影响和控制鹌鹑体重的候选基因。 相似文献
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BAI Jun-yan PANG You-zhi ZHANG Xiao-hui YUN Yin-xian ZHAO Shu-juan QI Yan-xia 《中国畜牧兽医》2015,42(9):2444-2452
In order to reveal the genetic structure and genetic relationship of Korean quail, Chinese Yellow quail, Chinese Black quail, the 3 quail populations from the molecular level, to provide for the study of genetic resources of quail.This study used PCR amplification, polyacrylamide gel electrophoresis, cluster analysis and other methods of 3 quail populations were polymorphic analysis of microsatellite markers.The results showed that 12 microsatellite markers in 3 quails was detected in the observed number of alleles was between 4 and 7, the average polymorphism information content of Chinese Yellow quail, Chinese Black quail, Korean quail were 0.6853, 0.6401 and 0.6565, respectively;The average heterozygosity were 0.7333, 0.6957 and 0.7111, respectively, which Chinese Yellow quail population genetic diversity was the most abundant polymorphism.The cluster analysis showed that the Chinese Black quail and Korean quail smallest genetic distance was 0.0628, so the Chinese Black quail and Korean quail were clustered into one category, and then was Chinese Yellow quail together.This was further evidence of Chinese Black quail and Korean quail had a closer genetic relationship, and the genetic relationship of Chinese Black quail and Korean quail was more distant with Chinese Yellow quail. 相似文献
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The purpose of this study was to accelerate the application of molecular markers in genetic breeding and other aspects of Black quail to develop EST-SSR markers for Black quail.100 Black quail were randomly chosen and blood samples were collected to develop EST-SSR new markers and determined the genetic polymorphism using bioinformatics.The results showed that there were 6 EST-SSR markers in the Black quail, the number of observed alleles in EST-SSR was 2 to 6.The average PIC of 6 EST-SSR markers in the Back quail was 0.4962 and the average He was 0.5759.Markers P1 and P2 were highly polymorphic markers among 6 EST-SSR and the rest EST-SSR markers were moderately polymorphic markers.These developed markers could be used for genetic diversity analysis of Black quail and the EST-SSR markers had some relationship with the carbohydrate metabolism, synthesis of melanin in Black quail, but the mechanism needed the further analysis. 相似文献
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Boniface Baboreka KAYANG Miho INOUE-MURAYAMA Hideaki TAKAHASHI Mitsuru MINEZAWA Masaoki TSUDZUKI Makoto MIZUTANI Shin'ichi ITO 《Animal Science Journal》2003,74(4):255-259
Twenty‐eight original chicken microsatellite markers were isolated and characterized to determine their utility as cross‐reactive markers for comparative genetic mapping in the order Galliformes. Primer pairs were typed in 12 unrelated chickens and also tested on Japanese quail and helmeted guinea fowl deoxyribonucleic acid (DNA). Polymorphism was observed in 23 (82.1%) of the markers and the average number of alleles per locus was 2.9 while the mean heterozygosity was 0.19. Eleven (39.3%) of the chicken markers cross‐reacted with Japanese quail DNA and 2 (7.1%) with helmeted guinea fowl DNA. The cross‐reactive markers described would serve as useful resources for comparative genetic mapping in poultry species belonging to the order Galliformes. 相似文献
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跨种扩增是微卫星DNA标记获取的快捷有效途径之一。为了筛选出高原鼢鼠微卫星多态性位点,从已开发微卫星信息的鼹形鼠科和甘肃鼢鼠物种中进行了高原鼢鼠微卫星多态性位点及其通用性研究,结果表明:在87对微卫星位点中,只有54对进行了成功扩增,多态位点仅有9个,27个鼹形鼠科物种的微卫星在高原鼢鼠中并没有多态性,9个多态位点全来自于同属的甘肃鼢鼠。基于获得的9个多态位点,检测到高原鼢鼠的等位基因数在4~12,其平均观测杂合度(Ho)为0.544,期望杂合度(He)为0.671,多态信息含量为0.551,研究为高原鼢鼠的微卫星标记应用奠定了基础。 相似文献
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8个微卫星座位在海北金银滩藏羊群体中的多态性分析 总被引:1,自引:0,他引:1
研究旨在分析金银滩藏羊的微卫星DNA多态性,以期了解该品种的遗传多样性,为该品种的保种选育和品质的进一步提高提供有益资料。利用8对微卫星引物,以金银滩藏羊为研究对象,通过计算基因频率、多态性信息含量、有效等位基因数和杂合度,评估其品种内的遗传变异。结果表明:在8个微卫星座位中,共检测到83个等位基因,每个座位平均10.38个等位基因;平均杂合度0.893;平均有效等位基因数9.06;平均多态性信息含量0.871。结果提示,金银滩藏羊群体存在丰富的遗传多样性,所选微卫星标记可用于绵羊遗传多样性评估。 相似文献