Journal of Integrative Agriculture ›› 2011, Vol. 10 ›› Issue (6): 813-819.DOI: 10.1016/S1671-2927(11)60066-7

• 论文 •    下一篇

Cloning One CIPK Gene from a Thermo-Sensitive Genic Self-Incompatible Line in Maize Expressing Under Different Temperatures

LIN Xing-e, JI Hong-qing, NIU Jun-hai, HU Yan-min, FU Zhong-jun, LIU Zong-hua and TANG Ji-hua   

  1. College of Agronomy, Henan Agricultural University, Zhengzhou 450002, P.R.China
  • 收稿日期:2011-06-10 修回日期:2011-06-10 出版日期:2011-06-20 发布日期:2011-06-03
  • 通讯作者: TANG Ji-hua,
  • 作者简介:Correspondence TANG Ji-hua, Professor, Tel: +86-371-63558127, Fax: +86-371-63558122, E-mail: Tangjihua1@163.com

Cloning One CIPK Gene from a Thermo-Sensitive Genic Self-Incompatible Line in Maize Expressing Under Different Temperatures

LIN Xing-e, JI Hong-qing, NIU Jun-hai, HU Yan-min, FU Zhong-jun, LIU Zong-hua and TANG Ji-hua   

  1. College of Agronomy, Henan Agricultural University, Zhengzhou 450002, P.R.China
  • Received:2011-06-10 Revised:2011-06-10 Online:2011-06-20 Published:2011-06-03
  • Contact: TANG Ji-hua,
  • About author:Correspondence TANG Ji-hua, Professor, Tel: +86-371-63558127, Fax: +86-371-63558122, E-mail: Tangjihua1@163.com

摘要: A calcineurin B-like protein-interacting protein kinases (CIPK) gene was cloned (EU 424058) from a thermo-sensitive genic self-incompatibility (TSGI) line, HE97, in maize, which was selected for suppression subtractive hybridization (SSH) library of the self-incompatible and self-compatible silks of the TSGI line under different temperatures. The full-length cDNA of the candidate CIPK-like gene consisted of 1 918 nucleotides and contained a 1 332-bp open reading frame in maize. Real-time PCR indicated that the candidate CIPK-like gene was highly expressed in the self-incompatible pollen of the TGSI line, and promoted elevated levels of calcium (Ca2+). High Ca2+ concentrations in the pollen strongly inhibit pollen tube formation in silk of the same plant, thus inducing self-incompatibility (SI) under high temperature. These results implied that the CIPKs-like gene would play an important role in the regulation of HE97 characteristics under different temperatures, perhaps acting as a secondary messenger in the expression of SI in the TGSI line in maize.

关键词: CIPK gene, cloning, expression, temperature, maize

Abstract: A calcineurin B-like protein-interacting protein kinases (CIPK) gene was cloned (EU 424058) from a thermo-sensitive genic self-incompatibility (TSGI) line, HE97, in maize, which was selected for suppression subtractive hybridization (SSH) library of the self-incompatible and self-compatible silks of the TSGI line under different temperatures. The full-length cDNA of the candidate CIPK-like gene consisted of 1 918 nucleotides and contained a 1 332-bp open reading frame in maize. Real-time PCR indicated that the candidate CIPK-like gene was highly expressed in the self-incompatible pollen of the TGSI line, and promoted elevated levels of calcium (Ca2+). High Ca2+ concentrations in the pollen strongly inhibit pollen tube formation in silk of the same plant, thus inducing self-incompatibility (SI) under high temperature. These results implied that the CIPKs-like gene would play an important role in the regulation of HE97 characteristics under different temperatures, perhaps acting as a secondary messenger in the expression of SI in the TGSI line in maize.

Key words: CIPK gene, cloning, expression, temperature, maize