贵州农业科学
貴州農業科學
귀주농업과학
GUIZHOU AGRICULTURAL SCIENCES
2014年
2期
139-141,144
,共4页
刘媛%孙志颖%孙少华%乔冬雨%楚康康
劉媛%孫誌穎%孫少華%喬鼕雨%楚康康
류원%손지영%손소화%교동우%초강강
小尾寒羊%无角基因%δ差异显示
小尾寒羊%無角基因%δ差異顯示
소미한양%무각기인%δ차이현시
small-tail Han sheep%polled gene%δdifferential display
为了寻找与河北小尾寒羊无角性状相关的基因,进而为培育出优良的纯合无角品种奠定基础,利用δ差异显示技术对河北小尾寒羊无角性状的相关基因进行筛选,并通过 GenBank 进行序列同源比对。结果表明:经筛选获得19条 ESTs,有2条序列分别与山羊微卫星 DNOK281和人 SYN 3基因的序列同源,序列的相似性分别为97%和100%;有3条片段主要和牛、羊、人等 BAC 中的序列有较高相似性,其相似程度在80%以上;有14条未发现高度同源序列,为新发现的表达基因片段。
為瞭尋找與河北小尾寒羊無角性狀相關的基因,進而為培育齣優良的純閤無角品種奠定基礎,利用δ差異顯示技術對河北小尾寒羊無角性狀的相關基因進行篩選,併通過 GenBank 進行序列同源比對。結果錶明:經篩選穫得19條 ESTs,有2條序列分彆與山羊微衛星 DNOK281和人 SYN 3基因的序列同源,序列的相似性分彆為97%和100%;有3條片段主要和牛、羊、人等 BAC 中的序列有較高相似性,其相似程度在80%以上;有14條未髮現高度同源序列,為新髮現的錶達基因片段。
위료심조여하북소미한양무각성상상관적기인,진이위배육출우량적순합무각품충전정기출,이용δ차이현시기술대하북소미한양무각성상적상관기인진행사선,병통과 GenBank 진행서렬동원비대。결과표명:경사선획득19조 ESTs,유2조서렬분별여산양미위성 DNOK281화인 SYN 3기인적서렬동원,서렬적상사성분별위97%화100%;유3조편단주요화우、양、인등 BAC 중적서렬유교고상사성,기상사정도재80%이상;유14조미발현고도동원서렬,위신발현적표체기인편단。
For screening genes related to polled gene of small-tail Han sheep,so as to lay the foundation of breeding excellent homozygous polled sheep varieties,the authors studied the differential display of the polled gene by usingδdifferential display technology in small-tailed Han sheep of Hebei,and the sequence homology analysis was conducted through GenBank.The results showed that 19 ESTs were obtained and two ESTs had the 97% and 100% similary with the microsatellite DNok281 of Capra hicus and Homo sapiens synapsin Ⅲ,respectively.14 of those ESTs which were not found highly homologous sequences in NCBI were identified as new expressed segments.