One-line hybrid rice with high-efficiency synthetic apomixis and near-normal fertility.

ABSTRACT:

Key message

High-frequency clonal seeds and near-normal fertility were obtained by engineering synthetic apomixis in hybrid rice. The one-line strategy, with the advantage of unnecessary seed production, is the final stage for the hybrid rice development and can be achieved through the fixation of heterosis via artificially inducing apomixis. Recently, synthetic apomixis has been generated in rice by combining MiMe (Mitosis instead of Meiosis) with either the ectopic expression of BABY BOOM (BBM1 or BBM4) or mutation of MATRILINEAL (MTL), resulting in over 95.00% of clonal seeds. However, the frequency of clonal seeds was only 29.20% when AtDD45 promoter was used to drive BBM1. In addition, achieving both a high frequency of clonal seeds and near-normal fertility simultaneously had

SUBMITTER: Dan J 

PROVIDER: S-EPMC10894110 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature