Development of Neo-tetraploid Rice and Research Progress on Its Heterosis Mechanism

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

Abstract

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

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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