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Chinese Agricultural Science Bulletin ›› 2015, Vol. 31 ›› Issue (3): 118-121.doi: 10.11924/j.issn.1000-6850.2014-1157

Special Issue: 玉米

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Inheritance of the Purple Midrib Trait in Maize Leaf

Zhang Fangkui, Huo Shiping, Zhang Xingduan, Yan Qingjiu, Xiang Zhenfan, Zhang Jian, Yu Zhijiang, Feng Yunchao   

  1. (Chongqing Three Gorges Academy of Agricultural Sciences/Chongqing Engineering Research Center of the Mountain Ecological Agriculture, Chongqing 404155)
  • Received:2014-04-21 Revised:2015-01-23 Accepted:2014-11-25 Online:2015-03-19 Published:2015-03-19

Abstract: The author used an imported dark purple maize random mating population to select after crossed and multi-generational self-bred, the stable inbred line 06Z-2 with purple midrib was cultivated. By using the 06Z-2 (P2) and white midrib inbred line L-24 (P1) as materials, the F1, F2 , BC1 and BC2 populations were formulated, and to study the inheritance of the purple midrib trait in maize leaf. The results showed that the purple midrib trait was mainly controlled by single dominant genes. The segregation ratios that purple midrib plants numbers to white midrib plants numbers in segregating generations accorded with the Mendel’s first classical genetics law, and the purple midrib trait inherits stably, as well could be transferred easily. Deep genetic research and application on purple midrib traits in maize leaf had important theoretical and applicable value in preventing impurity, seed purity identification, and protection of intellectual property.