CAJ | 학술논문

[目的]家养水牛分沼泽型水牛和河流型水牛两大类型。沼泽型水牛是中国的主要牛种之一,其被毛主要为灰色和白色,而河流型水牛为黑色。本研究开展并统计了德宏水牛及其与河流型水牛杂交后代的被毛颜色以期探讨水牛的毛色遗传规律。[方法]统计了十几年来盈江县德宏水牛及其与河流型水牛（摩拉水牛和尼里—拉菲水牛）杂交后代的被毛颜色,经x2检验确定毛色的遗传规律。[结果]表明：沼泽型水牛白色与灰色交配的F1代全部为白色,F2代白色与灰色的比例为3∶1,白色对灰色完全显性;河流型水牛（黑色）与沼泽型纯合灰色交配,F1代全部为黑色,F2代黑色与灰色的比例为3∶1,黑色对灰色完全显性;河流型黑色与沼泽型白色交配,F1代表现型是两个亲本类型相对性状的综合,即棕褐色,F2代则出现了白色、棕褐色和黑色3种毛色,三者比例为1∶2∶1,白色对黑色为部分显性或不完全显性。[结论]因而推测沼泽型水牛白色与河流型黑色对灰色为完全显性,灰色为隐性纯合;沼泽型白色对河流型黑色为部分显性或不完全显性。
[목적]가양수우분소택형수우화하류형수우량대류형。소택형수우시중국적주요우충지일,기피모주요위회색화백색,이하류형수우위흑색。본연구개전병통계료덕굉수우급기여하류형수우잡교후대적피모안색이기탐토수우적모색유전규률。[방법]통계료십궤년래영강현덕굉수우급기여하류형수우（마랍수우화니리—랍비수우）잡교후대적피모안색,경x2검험학정모색적유전규률。[결과]표명：소택형수우백색여회색교배적F1대전부위백색,F2대백색여회색적비례위3∶1,백색대회색완전현성;하류형수우（흑색）여소택형순합회색교배,F1대전부위흑색,F2대흑색여회색적비례위3∶1,흑색대회색완전현성;하류형흑색여소택형백색교배,F1대표현형시량개친본류형상대성상적종합,즉종갈색,F2대칙출현료백색、종갈색화흑색3충모색,삼자비례위1∶2∶1,백색대흑색위부분현성혹불완전현성。[결론]인이추측소택형수우백색여하류형흑색대회색위완전현성,회색위은성순합;소택형백색대하류형흑색위부분현성혹불완전현성。
【Objective】Domestic buffalo is generally divided into two types,swamp type and river type.Swamp buffalo is one of the predominant bovine species in China,of which coat color appear grey and white.However,the coat color of river buffalo is black.To shed light on the inheritance principle of coat color in buffalo,the coat color were investigated and analyzed from Dehong buffalo（Bubalus bubalus） and the hybrid of river buffalo cross Dehong buffalo.【Method】The coat colors of Dehong buffalo,and the hybrids of river type（Murrah and Nili-Ravi） cross Dehong buffalo were investigated in recent decades from Yingjiang county,Dehong prefecture to prove the coat color inheritance by Chi square test.【Result】The results showed that：① all the phenotypes of F1 generation showed white（E^D） when white and grey of swamp type mated,and the ratio of white and grey in F2 generation was 3∶1 indicating white（ED） was dominant over grey（E^d）.② when river type（black） mated with grey of swamp type,all the phenotypes of F1 generation showed black（E^B）,and the proportion of black and grey in F2 generation was 3∶1 indicating black（E^B） was dominant over grey（E^d）.③when river type（black） mated with white of swamp type,all the phenotypes of F1 generation showed intermediate brown（E^BE^D）,and the proportion of white,brown and grey in F2 generation was 1：2：1 indicating white（ED） was partly or incompletely dominant over black（E^B）.【Conclusion】It inferred that the white of swamp type（E^D） and black of river type（E^B） were dominant over grey of swamp type（E^d）,and the grey of swamp type was recessive homozygote（E^dE^d）;The white of swamp type（E^D） were partly or incompletely dominant over the black of river type（E^B）.