OsPDCD5 negatively regulates plant architecture and grain yield in rice.
Proc Natl Acad Sci U S A
; 118(29)2021 07 20.
Article
em En
| MEDLINE
| ID: mdl-34266944
ABSTRACT
Plant architecture is an important agronomic trait that affects crop yield. Here, we report that a gene involved in programmed cell death, OsPDCD5, negatively regulates plant architecture and grain yield in rice. We used the CRISPR/Cas9 system to introduce loss-of-function mutations into OsPDCD5 in 11 rice cultivars. Targeted mutagenesis of OsPDCD5 enhanced grain yield and improved plant architecture by increasing plant height and optimizing panicle type and grain shape. Transcriptome analysis showed that OsPDCD5 knockout affected auxin biosynthesis, as well as the gibberellin and cytokinin biosynthesis and signaling pathways. OsPDCD5 interacted directly with OsAGAP, and OsAGAP positively regulated plant architecture and grain yield in rice. Collectively, these findings demonstrate that OsPDCD5 is a promising candidate gene for breeding super rice cultivars with increased yield potential and superior quality.
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Base de dados:
MEDLINE
Assunto principal:
Proteínas de Plantas
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Grão Comestível
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Estruturas Vegetais
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Proteínas Reguladoras de Apoptose
Idioma:
En
Ano de publicação:
2021
Tipo de documento:
Article