Journal of Integrative Agriculture ›› 2015, Vol. 14 ›› Issue (5): 839-846.DOI: 10.1016/S2095-3119(14)60874-1

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Perennial aneuploidy as a potential material for gene introgression between maize and Zea perennis

 FU Jie, YANG Xiu-yan, CHENG Ming-jun, LÜ Gui-hua, WANG Pei, WU Yuan-qi, ZHENG Ming-min, ZHOU Shu-feng, RONG Ting-zhao, TANG Qi-lin   

  1. Maize Research Institute, Sichuan Agricultural University, Chengdu 611130, P.R.China
  • 收稿日期:2014-05-12 出版日期:2015-05-01 发布日期:2015-05-13
  • 通讯作者: TANG Qi-lin,Tel: +86-28-86291200, Fax: +86-28-86290912, E-mail: tangqilin71 @163.com
  • 作者简介:FU Jie, E-mail: 61699257@qq.com;
  • 基金资助:

    This work was supported by the Key Basic Research Program of China (973 Program, 2014CB138705) and the National Natural Science Foundation of China (31371640, 31071432).

Perennial aneuploidy as a potential material for gene introgression between maize and Zea perennis

 FU Jie, YANG Xiu-yan, CHENG Ming-jun, LÜ Gui-hua, WANG Pei, WU Yuan-qi, ZHENG Ming-min, ZHOU Shu-feng, RONG Ting-zhao, TANG Qi-lin   

  1. Maize Research Institute, Sichuan Agricultural University, Chengdu 611130, P.R.China
  • Received:2014-05-12 Online:2015-05-01 Published:2015-05-13
  • Contact: TANG Qi-lin,Tel: +86-28-86291200, Fax: +86-28-86290912, E-mail: tangqilin71 @163.com
  • About author:FU Jie, E-mail: 61699257@qq.com;
  • Supported by:

    This work was supported by the Key Basic Research Program of China (973 Program, 2014CB138705) and the National Natural Science Foundation of China (31371640, 31071432).

摘要: Hybridization, which allows for gene flow between crops, is difficult between maize and Zea perennis. In this study, we aim to initiate and study gene flow between maize and Z. perennis via a special aneuploid plant (MDT) derived from an interspecific hybrid of the two species. The chromosome constitution and morphological characters of MDT as well as certain backcross progenies were examined. Results from genomic in situ hybridization (GISH) indicate that aneuploid MDT consisted of nine maize chromosomes and 30 Z. perennis chromosomes. The backcross progenies of MDT×maize displayed significant diversity of vegetative and ear morphology; several unusual plants with specific chromosome constitution were founded in its progenies. Some special perennial progeny with several maize chromosomes were obtained by backcrossing MDT with Z. perennis, and the first whole chromosome introgression from maize to Z. perennis was detected in this study. With this novel material and method, a number of maize-tetraploid teosinte addition or substitution lines can be generated for further study, which has great significance to maize and Z. perennis genetic research, especially for promoting introgression and transferring desirable traits.

关键词: maize , Z. perennis , gene flow , aneuploidy , chromosome constitution

Abstract: Hybridization, which allows for gene flow between crops, is difficult between maize and Zea perennis. In this study, we aim to initiate and study gene flow between maize and Z. perennis via a special aneuploid plant (MDT) derived from an interspecific hybrid of the two species. The chromosome constitution and morphological characters of MDT as well as certain backcross progenies were examined. Results from genomic in situ hybridization (GISH) indicate that aneuploid MDT consisted of nine maize chromosomes and 30 Z. perennis chromosomes. The backcross progenies of MDT×maize displayed significant diversity of vegetative and ear morphology; several unusual plants with specific chromosome constitution were founded in its progenies. Some special perennial progeny with several maize chromosomes were obtained by backcrossing MDT with Z. perennis, and the first whole chromosome introgression from maize to Z. perennis was detected in this study. With this novel material and method, a number of maize-tetraploid teosinte addition or substitution lines can be generated for further study, which has great significance to maize and Z. perennis genetic research, especially for promoting introgression and transferring desirable traits.

Key words: maize , Z. perennis , gene flow , aneuploidy , chromosome constitution