当前位置: 首页 > 科学研究 > 学术论文 > 正文 >

Perennial aneuploidy as a potential material for gene introgression between maize and Zea perennis. Journal of Integrative Agriculture

时间: 2016-01-11 点击次数:次 作者:


Journal: Journal of Integrative Agriculture, 2015, 14(5): 839-846.

Author: 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

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.

Link: http://www.chinaagrisci.com/Jwk_zgnykxen/EN/10.1016/S2095-3119(14)60874-1

 

上一篇:Microemulsion Formulation of Carbendazim and Its In Vitro Antifungal Activities Evaluation

下一篇:Mining for low-nitrogen tolerance genes by integrating meta-analysis and large-scale gene expression data from maize