The Rice

doi:10.11983/CBB24090

Chinese Bulletin of Botany ›› 2024, Vol. 59 ›› Issue (4): 529-532.DOI: 10.11983/CBB24090 cstr: 32102.14.CBB24090

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The Rice "hybrid" Population Reveals the Mysteries of Genetic Interaction

Hao Wang¹^,², Peng Qin¹^,², Shigui Li¹^,²^,^*()

¹Rice Research Institute, Sichuan Agricultural University, Chengdu 611130, China
²State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Chengdu 611130, China

Received:2024-06-07 Accepted:2024-06-21 Online:2024-07-10 Published:2024-07-10
Contact: ^*E-mail: lishigui_sc@263.net

Abstract

Abstract: Revealing the intrinsic relationship between gene interactions and phenotypes is a key issue in life science research. Most phenotypes are controlled by multiple genes in a coordinated manner, exhibiting complex genetic effects such as dominance and epistasis in addition to additive effects. In a recent study, a “hybrid” population of rice containing 18 421 recombinant inbred lines was constructed, successfully identifying 96 high-confidence candidate genes controlling 16 agronomic traits. The study analyzed the epistatic effects among genes, constructed a genetic interaction network consisting of 19 hub genes, revealed potential interactions among genes, and discovered 170 “masking” epistatic interac-tions. This research provides important data and material resources for genetic studies in rice, establishes a new paradigm for crop genetics research, greatly accelerates the discovery of genes related to important traits, advances the functional analysis of quantitative trait gene interactions, and provides genetic resources and theoretical support for mole-cular breeding.

Key words: “hybrid” population, quantitative traits, genetic pleiotropy, epistasis

Hao Wang, Peng Qin, Shigui Li. The Rice "hybrid" Population Reveals the Mysteries of Genetic Interaction[J]. Chinese Bulletin of Botany, 2024, 59(4): 529-532.

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The Rice "hybrid" Population Reveals the Mysteries of Genetic Interaction

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