期刊
JOURNAL OF EXPERIMENTAL BOTANY
卷 72, 期 4, 页码 959-963出版社
OXFORD UNIV PRESS
DOI: 10.1093/jxb/eraa540
关键词
Legume; nitrogen; nodulation; NSP2; peanut; signalling; symbiosis
Legumes have the ability to form root nodules with nitrogen-fixing rhizobial bacteria, overcoming nitrogen limitation and ensuring ecological and agronomic success. Recent research has identified key genes related to nodulation in cultivated peanut through genetic approaches.
Legumes have the remarkable ability to develop root nodules with nitrogen-fixing rhizobial bacteria. This symbiosis enables them to overcome nitrogen limitation affecting their growth, and such a nutritional advantage is key to the ecological and agronomic success of legumes. Intriguingly, non-nodulating lines can be obtained through inbreeding work in cultivated peanut. Using elegant genetic approaches, Peng et al. (2021) have elucidated this 40-year-old mystery by identifying the underlying genes. They are the two homoeologs of the symbiotic signalling gene NSP2, pinpointing NSP2 as a gene of primary adaptative importance for nodulation in legumes.
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