Chinese Bulletin of Botany ›› 2017, Vol. 52 ›› Issue (1): 10-18.DOI: 10.11983/CBB16187

Special Issue: 水稻生物学专辑 (2017年52卷1期)

Previous Articles     Next Articles

Progress in Understanding the Genetic Basis of Heterosis in Crops

Lianguang Shang1, Zhenyu Gao2, Qian Qian1,2*   

  1. 1Agriculture Genome Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
    2State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 310006, China
  • Received:2016-09-21 Accepted:2016-10-20 Online:2017-01-01 Published:2017-01-23
  • Contact: Qian Qian
  • About author:

    # Co-first authors

Abstract: In heterosis, hybrid progeny of two different inbred varieties exhibit greater biomass and speed of development than both parents. Although heterosis is widely exploited in agriculture, a comprehensive description of its molecular basis has remained elusive despite extensive investigation. Various models have been posited to explain the genetic mechanisms of heterosis include dominance, overdominance, and epistasis. With the development of molecular quantitative genetics, the study of heterosis has been promoted. In this review, we summarize recent progress in the genetic basis of heterosis at the quantitative trait loci (QTL) level. QTL mapping for heterosis is discussed and its prospects are proposed.