Journal of Integrative Agriculture ›› 2013, Vol. 12 ›› Issue (1): 19-26.DOI: 10.1016/S2095-3119(13)60201-4

• 论文 • 上一篇    下一篇

Combining Ability and Parent-Offspring Correlation of Maize (Zea may L.) Grain b-Carotene Content with a Complete Diallel

 LI Run, XIAO Lan-hai, WANG Jing, LU Yan-li, RONG Ting-zhao, PAN Guang-tang, WU Yuan-qi, TANGQilin, LAN Hai, CAO Mo-ju   

  1. Maize Research Institute, Sichuan Agricultural University/Key Laboratory of Crop Genetic Resource and Improvement, Ministry of Education/Key Laboratory of Maize Biology and Genet ic Breeding on Southwest , Minist ry of Agriculture, Chengdu 611130, P.R.China
  • 收稿日期:2011-12-19 出版日期:2013-01-01 发布日期:2013-01-24
  • 通讯作者: Correspondence CAO Mo-ju, Mobile: 13882439529, Fax: +86-835-2882154, E-mail: caomoju@gmail.com, caomj@sicau.edu.cn
  • 基金资助:

    This work was supported by the Harvest-Plus China Program, the National High-Tech R&D Program of China (2011AA10A103), and the Sichuan Maize Breeding Program in the 12th Five-Year Plan, China.

Combining Ability and Parent-Offspring Correlation of Maize (Zea may L.) Grain b-Carotene Content with a Complete Diallel

 LI Run, XIAO Lan-hai, WANG Jing, LU Yan-li, RONG Ting-zhao, PAN Guang-tang, WU Yuan-qi, TANGQilin, LAN Hai, CAO Mo-ju   

  1. Maize Research Institute, Sichuan Agricultural University/Key Laboratory of Crop Genetic Resource and Improvement, Ministry of Education/Key Laboratory of Maize Biology and Genet ic Breeding on Southwest , Minist ry of Agriculture, Chengdu 611130, P.R.China
  • Received:2011-12-19 Online:2013-01-01 Published:2013-01-24
  • Contact: Correspondence CAO Mo-ju, Mobile: 13882439529, Fax: +86-835-2882154, E-mail: caomoju@gmail.com, caomj@sicau.edu.cn
  • Supported by:

    This work was supported by the Harvest-Plus China Program, the National High-Tech R&D Program of China (2011AA10A103), and the Sichuan Maize Breeding Program in the 12th Five-Year Plan, China.

摘要: Vitamin A deficiency has become a worldwide problem. Biofortified foods can potentially be an inexpensive, locally adaptable, and long-term solution to dietary-nutrient deficiency. In order to improve the b-carotene content in maize grain by breeding and minimize vitamin A deficiency, a complete diallel cross was designed with eight inbred lines of maize, and 64 combinations were obtained in this study. The experimental combinations were planted in Yunnan and Sichuan provinces, respectively, with a random complete block design. The b-carotene contents in the grains of the experimental materials were analyzed by high-performance liquid chromatography. Among the tested materials, the effect difference of general combining ability of the b-carotene content was significant; however, the effect difference of the special combining ability and the reciprocal effect were not significant. The b-carotene content of maize grain was not influenced significantly by the cross and the reciprocal cross. There was a significant correlation about the b-carotene content in the maize grains between the F1 and their parents. The combinations with high b-carotene content were obviously influenced by the environment, and the mean value of b-carotene content for the experimental materials planted in Ya’an of Sichuan was higher than that planted in Yuanjiang of Yunnan, with the results being significant at the 0.01 level.

关键词: maize , b-carotene content , complete diallel cross , combining ability

Abstract: Vitamin A deficiency has become a worldwide problem. Biofortified foods can potentially be an inexpensive, locally adaptable, and long-term solution to dietary-nutrient deficiency. In order to improve the b-carotene content in maize grain by breeding and minimize vitamin A deficiency, a complete diallel cross was designed with eight inbred lines of maize, and 64 combinations were obtained in this study. The experimental combinations were planted in Yunnan and Sichuan provinces, respectively, with a random complete block design. The b-carotene contents in the grains of the experimental materials were analyzed by high-performance liquid chromatography. Among the tested materials, the effect difference of general combining ability of the b-carotene content was significant; however, the effect difference of the special combining ability and the reciprocal effect were not significant. The b-carotene content of maize grain was not influenced significantly by the cross and the reciprocal cross. There was a significant correlation about the b-carotene content in the maize grains between the F1 and their parents. The combinations with high b-carotene content were obviously influenced by the environment, and the mean value of b-carotene content for the experimental materials planted in Ya’an of Sichuan was higher than that planted in Yuanjiang of Yunnan, with the results being significant at the 0.01 level.

Key words: maize , b-carotene content , complete diallel cross , combining ability