东北农业大学学报
東北農業大學學報
동북농업대학학보
Journal of Northeast Agricultural University
2015年
9期
75-82
,共8页
马猛%王克华%曲亮%窦套存%沈曼曼%郭军%卢建%胡玉萍
馬猛%王剋華%麯亮%竇套存%瀋曼曼%郭軍%盧建%鬍玉萍
마맹%왕극화%곡량%두투존%침만만%곽군%로건%호옥평
体尺%主基因%多基因%混合%遗传
體呎%主基因%多基因%混閤%遺傳
체척%주기인%다기인%혼합%유전
body size%major-gene%polygene%mixed%genetic
研究以绿壳蛋鸡黑羽纯系和白来航鸡为对象构建分离群体,测定亲本P1、P2、F1和F2代母鸡13周龄体尺,运用主基因+多基因混合遗传分析软件SEA-G4F2对分离群体13周龄体尺性状进行遗传分析.结果表明,母鸡13周龄胫围、胫长、龙骨长、体斜长和胸宽的最适模型均为E模型,即两对加性-显性-上位性主基因+加性-显性-上位性多基因混合遗传模型,主基因遗传率分别为33.58%、25.74%、27.02%、24.92%和33.72%,龙骨长、体斜长和胸宽的多基因遗传率为1.13%、1.71%和4.61%;13周龄胸角最适模型为E-1,即两对加性-显性-上位性主基因+加性-显性多基因混合遗传模型,主基因遗传率为55.06%.胫围、胫长和胸角多基因遗传率均为0,各个性状主基因遗传效应均大于多基因遗传效应.
研究以綠殼蛋鷄黑羽純繫和白來航鷄為對象構建分離群體,測定親本P1、P2、F1和F2代母鷄13週齡體呎,運用主基因+多基因混閤遺傳分析軟件SEA-G4F2對分離群體13週齡體呎性狀進行遺傳分析.結果錶明,母鷄13週齡脛圍、脛長、龍骨長、體斜長和胸寬的最適模型均為E模型,即兩對加性-顯性-上位性主基因+加性-顯性-上位性多基因混閤遺傳模型,主基因遺傳率分彆為33.58%、25.74%、27.02%、24.92%和33.72%,龍骨長、體斜長和胸寬的多基因遺傳率為1.13%、1.71%和4.61%;13週齡胸角最適模型為E-1,即兩對加性-顯性-上位性主基因+加性-顯性多基因混閤遺傳模型,主基因遺傳率為55.06%.脛圍、脛長和胸角多基因遺傳率均為0,各箇性狀主基因遺傳效應均大于多基因遺傳效應.
연구이록각단계흑우순계화백래항계위대상구건분리군체,측정친본P1、P2、F1화F2대모계13주령체척,운용주기인+다기인혼합유전분석연건SEA-G4F2대분리군체13주령체척성상진행유전분석.결과표명,모계13주령경위、경장、용골장、체사장화흉관적최괄모형균위E모형,즉량대가성-현성-상위성주기인+가성-현성-상위성다기인혼합유전모형,주기인유전솔분별위33.58%、25.74%、27.02%、24.92%화33.72%,용골장、체사장화흉관적다기인유전솔위1.13%、1.71%화4.61%;13주령흉각최괄모형위E-1,즉량대가성-현성-상위성주기인+가성-현성다기인혼합유전모형,주기인유전솔위55.06%.경위、경장화흉각다기인유전솔균위0,각개성상주기인유전효응균대우다기인유전효응.
In this study, green-eggshel layer black feather pure lines and White Leghorn acted as par-ents to constructed segregating population, body size traits of hens at 13-week-old of P1, P2, F1 and F2 were measured, the analysis software of major gene and polygene mixed inheritance model in the hens body size traits was SEA-G4F2. The results showed that the best model of shank girth, shank length, keel length, body slanting length and chest width of hens at 13-week-old was model E, namely two pairs of additive-domi-nance-epistatic major gene plus additive-dominance-epistatic polygene mixed genetic model, their heritability of major gene were 33.58%, 25.74%, 27.02%, 24.92%and 33.72%, respectively, the heritablity of polygene in keel length, body slanting length and chest width were 1.13%, 1.71%and 4.61%, respectively;the best mod-el of chest angle was model E-1, which named two pairs of additive-dominance-epistatic major gene plus addi-tive-dominance polygene mixed genetic model, the heritability of major gene was 55.06%. the polygene heri-tability of shank girth, shank length and chest angle were 0, major gene has a bigger genetic effect than poly-gene in these traits.