畜牧兽医学报 ›› 2015, Vol. 46 ›› Issue (11): 1934-1943.doi: 10.11843/j.issn.0366-6964.2015.11.004

• 遗传繁育 • 上一篇    下一篇

不同毛色山羊皮肤组织Agouti基因剪接体类型研究

张天1,2,3,李祥龙1,2*,周荣艳2,李兰会2   

  1. (1.河北科技师范学院,秦皇岛066600; 2.河北农业大学,保定 071000; 3.晋州市职教中心,晋州 052260)
  • 收稿日期:2014-12-31 出版日期:2015-11-23 发布日期:2015-11-20
  • 通讯作者: 李祥龙,博士,教授,博导,主要从事动物遗传育种研究,E-mail:Lixianglongcn@yahoo.com
  • 作者简介:张天(1987-),女,河北藁城人,硕士,主要从事动物遗传育种研究,E-mail:zhangtian19870417@163.com
  • 基金资助:

    国家自然科学基金(31172196);河北省高校创新团队领军人才培育计划(LJRC004);河北省应用基础研究计划重点基础研究项目(15962901D)

Study on Agouti Spliceosome Types in Goat Skin with Different Coat Color

ZHANG Tian1,2,3,LI Xiang-long1,2* ,ZHOU Rong-yan2,LI Lan-hui2   

  1. (1.河北科技师范学院,秦皇岛066600; 2.河北农业大学,保定 071000; 3.晋州市职教中心,晋州 052260)
  • Received:2014-12-31 Online:2015-11-23 Published:2015-11-20

摘要:

本研究旨在探讨白色和黑色山羊皮肤组织Agouti 基因所具有的不同剪接体类型。采用PCR扩增和5′RACE方法分别获得白色和黑色山羊皮肤组织Agouti基因部分基因组序列及mRNA 序列,并进行拼接比对。结果,分别获得了长度为27 793和27 858 bp的白色和黑色山羊Agouti基因序列,发现4段序列(88、180、81和79 bp)与绵羊mRNA序列相匹配,这些片段与5′RACE所检测到的外显子1可变剪接体长度对应,其中的180、81和79 bp为新发现片段。白色山羊检测到It、It′、IA、2C和IE 5种类型剪接体,黑色山羊仅检测到It和It′ 2种类型剪接体。剪接体之间和剪接体内部均存在长度变异。结果提示,IA、2C和IE可变剪接可能与山羊毛色形成有关。

关键词: 山羊, Agouti基因, 皮肤组织, 剪接体类型

Abstract:

The objective of this study was to investigate the variant types of goat Agouti gene spliceosome in goat skin with different coat color.The sequences and mRNA of goat Agouti gene were obtained and analyzed from goat skin with different coat color by PCR and 5′RACE methods,respectively.The 27 793 and 27 858 bp of partial Agouti gene sequences were obtained from white and black goat skin,respectively.Four fragments,88,180,81 and 79 bp,in which the 180,81 and 79 bp were first detected in goat,were matched with the sequences of sheep mRNA and corresponded with the length of exon 1 spliceosome obtained by 5′RACE.The 5 types(It,It′,IA,2C and IE) of spliceosome were detected in goat skin with white coat color,and only 2 types(It and It′) were found in goat skin with black coat color.There was length variation within and among spliceosomes.The result indicate that the IA,2C and IE might be related with the formation of goat coat color.

Key words: goat, Agouti gene, skin tissue, spliceosome types

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