生物技术通报 ›› 2019, Vol. 35 ›› Issue (4): 195-200.doi: 10.13560/j.cnki.biotech.bull.1985.2018-0895

• 技术与方法 • 上一篇    下一篇

分子标记辅助选择不同甜瓜性别植株

范磊1, 戴冬洋1,2, 熊安平1, 盛云燕1, 于明珠1, 秦瑛聪1   

  1. 1. 黑龙江八一农垦大学农学院,大庆 163319;
    2. 石河子大学农学院,石河子 832003
  • 收稿日期:2018-10-18 出版日期:2019-04-26 发布日期:2019-05-05
  • 作者简介:范磊,男,硕士研究生,研究方向:园艺学;E-mail:1069731476@qq.com
  • 基金资助:
    国家自然科学基金项目(31401892,31772330),黑龙江省自然科学基金项目(C2017054)

Molecular Marker-assisted Selection in Melon Sex Expression

FAN Lei1, DAI Dong-yang1,2, XIONG An-ping1, SHENG Yun-yan1, YU Ming-zhu1, QIN Ying-cong1   

  1. 1.College of Agronomy,Heilongjiang Bayi Agricultural University,Daqing 163319;
    2. College of Agronomy,Shihezi University,Shihezi 832003
  • Received:2018-10-18 Published:2019-04-26 Online:2019-05-05

摘要: 运用A和G基因鉴定甜瓜的性别类型,为甜瓜其他性状的分子标记辅助育种提供方法。根据已发表的甜瓜CmACS-7(A基因)与WIP1+Gyno-hAT(G基因)基因结构设计PCR引物,对47个重组自交系群体家系及14份甜瓜材料进行检测验证。引物CmACS-7扩增产物在383 bp进行酶切,基因型为AA不能被酶切,扩增产物均被酶切的为基因型aa,酶切位点可分辨共显性基因型;针对WIP1+Gyno-hAT基因结构设计2对引物同时扩增,扩增条带197 bp和184 bp区别G(g)基因基因型。利用自主设计的引物可用于甜瓜苗期筛选雌雄异花同株、全雌系、雄全同株和完全花植株的分子标记辅助选择育种。

关键词: 甜瓜, 性别基因, 分子标记辅助选择

Abstract: The objective of this study is to identify the sex type of melon via using A and G genes,and to provide a method for molecular marker-assisted breeding of other traits in melon. Based on the structures of the published CmACS-7(A)gene and WIP1+Gyno-hAT(G)gene in melon,PCR primers were designed,by which the detection of 47 recombinant inbred lines families and 14 melon materials was verified. Results indicated that PCR products from primer CmACS-7 was enzymatically digested at 383 bp,those with the genotype AA was not able to be digested by enzyme,and those digested by enzyme were in genotype aa,moreover,endonuclease locus discernible co-dominant genotype. Two primers were designed based on WIP1+Gyno-hAT gene structure,G(g)genotype was distinguished between 197 and 184 bp of the amplified bands. In conclusion,the self-designed primers can be used in the molecular marker-assisted selection breeding of monoecious,gynoecious,pure male line,and complete-flower melon at seedling stage.

Key words: melon, sex expression, marker-assisted selection