新型四倍体水稻创制及其杂种优势利用研究进展

doi:10.13560/j.cnki.biotech.bull.1985.2021-0406

摘要/Abstract

摘要：

新型四倍体水稻是本研究团队创制的一类高育性多倍体水稻新种质,携带有多种优异基因。该类材料与同源四倍体水稻杂交获得的杂种F₁产量优势明显,具有应用前景。本文首先概述了同源四倍体水稻的研究进展,并重点阐述了新型四倍体水稻创制过程、主要特点、杂种优势表现及其涉及的分子遗传机理,最后提出未来研究的思路及需要解决的问题,为加快新型四倍体水稻在多倍体水稻育种中的利用提供依据。

关键词: 水稻, 多倍体水稻, 新型四倍体水稻, 杂种优势

Abstract:

Neo-tetraploid rice is a kind of new polyploid rice germplasm with high fertility,which harbors several elite genes. Heterosis in yield was found in F₁ hybrids of neo-tetraploid rice crossed with autotetraploid rice,which had potential for commercial production. Here,first of all,the research progress on autotetraploid rice was described,focusing on the development procedure,main characteristics,and molecular genetic mechanism of heterosis in neo-tetraploid rice. Finally,the key issues for further research were advanced. It will provide the basis for accelerating the utilization of neo-tetraploid rice in polyploid rice breeding.

Key words: rice, polyploid rice, neo-tetraploid rice, heterosis

刘向东, 吴锦文, SHAHID Muhammad Qasim. 新型四倍体水稻创制及其杂种优势利用研究进展[J]. 生物技术通报, 2022, 38(1): 44-50.

LIU Xiang-dong, WU Jin-wen, SHAHID Muhammad Qasim. Development of Neo-tetraploid Rice and Research Progress on Its Heterosis Mechanism[J]. Biotechnology Bulletin, 2022, 38(1): 44-50.

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