Journal of Integrative Agriculture ›› 2012, Vol. 12 ›› Issue (1): 43-52.DOI: 10.1016/S1671-2927(00)8512

• 论文 • 上一篇    下一篇

Conversion of the Statistical Combining Ability into a Genetic Concept

 LV Ai-zhi, ZHANG Hao, ZHANG Zu-xin, TAO Yong-sheng, YUE Bing , ZHENG Yong-lian   

  1. 1.College of Agronomy, Hebei Agricultural University/Hebei Sub-Center of National Maize Improvement Center, Baoding 071001, P.R.China
    2.National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, P.R.China
  • 出版日期:2012-01-01 发布日期:2012-01-13
  • 通讯作者: Correspondence ZHANG Zu-xin, Tel: +86-27-87282689, E-mail: zuxinzhang@mail.hzau.edu.cn
  • 基金资助:

    This work was supported by the National Basic Research Program of China (2011CB100100) and the National Natural Science Foundation of China (30971791).

Conversion of the Statistical Combining Ability into a Genetic Concept

 LV Ai-zhi, ZHANG Hao, ZHANG Zu-xin, TAO Yong-sheng, YUE Bing , ZHENG Yong-lian   

  1. 1.College of Agronomy, Hebei Agricultural University/Hebei Sub-Center of National Maize Improvement Center, Baoding 071001, P.R.China
    2.National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, P.R.China
  • Online:2012-01-01 Published:2012-01-13
  • Contact: Correspondence ZHANG Zu-xin, Tel: +86-27-87282689, E-mail: zuxinzhang@mail.hzau.edu.cn
  • Supported by:

    This work was supported by the National Basic Research Program of China (2011CB100100) and the National Natural Science Foundation of China (30971791).

摘要: Since the combining ability was proposed in 1942, efforts to uncover the genetic basis underlying this phenomenon have been ongoing for nearly 70 yr, with little success. Some breeding strategies based on evaluation of combining ability have been produced, and are still extensively used in hybrid breeding. In this review, the genetic basis underlying these breeding strategies is discussed, and a potential genetic control of general combining ability (GCA) is postulated. We suggested that GCA and the yields of inbred lines might be genetically controlled by different sets of loci on the maize genome that are transmitted into offspring. Different inbred lines might possess different favorable alleles for GCA. In hybrids, loci involved in multiple pathways, which are directly or indirectly associated with yield performance, might be regulated by GCA loci. In addition, a case of GCA mapping using a set of testcross progeny from introgression lines is provided.

关键词: general combining ability (GCA), testcross, GCA mapping, quantitative trait locus (QTL), maize (Zea mays L.), introgression line

Abstract: Since the combining ability was proposed in 1942, efforts to uncover the genetic basis underlying this phenomenon have been ongoing for nearly 70 yr, with little success. Some breeding strategies based on evaluation of combining ability have been produced, and are still extensively used in hybrid breeding. In this review, the genetic basis underlying these breeding strategies is discussed, and a potential genetic control of general combining ability (GCA) is postulated. We suggested that GCA and the yields of inbred lines might be genetically controlled by different sets of loci on the maize genome that are transmitted into offspring. Different inbred lines might possess different favorable alleles for GCA. In hybrids, loci involved in multiple pathways, which are directly or indirectly associated with yield performance, might be regulated by GCA loci. In addition, a case of GCA mapping using a set of testcross progeny from introgression lines is provided.

Key words: general combining ability (GCA), testcross, GCA mapping, quantitative trait locus (QTL), maize (Zea mays L.), introgression line