Deciphering the Genetic Basis of Allelopathy in japonica Rice Cultivated in Temperate Regions Using a Genome-Wide Association Study
García-Romeral, Julia (Instituto Valenciano de Investigaciones Agrarias)
Castanera, Raúl (Centre de Recerca en Agrigenòmica)
Casacuberta, Josep (Centre de Recerca en Agrigenòmica)
Domingo, Concha (Instituto Valenciano de Investigaciones Agrarias)

Fecha:	2024
Resumen:	Allelopathy has been considered as a natural method of weed control. Despite the nature of allelochemical compounds has been studied, little is known about the genetic basis underlying allelopathy. However, it is known that rice exhibits diverse allelopathic potentials across varieties, and breeding for rice plants exhibiting allelopathic potential conferring an advantage against weeds in paddy fields would be highly desirable. Knowledge of the gene factors and the identification of the genomic regions responsible for allelopathy would facilitate breeding programs. Taking advantage of the existing genetic diversity in rice, particularly in temperate japonica rice, we conducted a comprehensive investigation into the genetic determinants that contribute to rice allelopathy. Employing Genome-Wide Association Study, we identified four Quantitative Trait Loci, with the most promising loci situated on chromosome 2 and 5. Subsequent inspection of the genes located within these QTLs revealed genes associated with the biosynthesis of secondary metabolites such as Phenylalanine Ammonia Lyase (PAL), a key enzyme in the synthesis of phenolic compounds, and two genes coding for R2R3-type MYB transcription factors. The identification of these two QTLs associated to allelopathy in rice provides a useful tool for further exploration and targeted breeding strategies.
Ayudas:	Agencia Estatal de Investigación PLEC2021-007786 Agencia Estatal de Investigación PID2019-104099RR-I00 Agencia Estatal de Investigación PID2019-106374RB-I00 Agencia Estatal de Investigación PID2022-143167NB-I00 Agencia Estatal de Investigación PID2019-108829RB-I00 Agencia Estatal de Investigación PRE2019-089034 Agencia Estatal de Investigación IJC2020-045949-I
Derechos:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Lengua:	Anglès
Documento:	Article ; recerca ; Versió publicada
Materia:	Allelopathy ; QTL ; Genome Wide Association Study (GWAS)
Publicado en:	Rice, Vol. 17 (March 2024) , art. 22, ISSN 1939-8433

DOI: 10.1186/s12284-024-00701-3
PMID: 38530496

13 p, 1.3 MB

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