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Unravelling marker trait associations linking nutritional value with pigmentation in rice seed

dc.contributor.authorMbanjo, E.
dc.contributor.authorPasion, E.
dc.contributor.authorJones, H.
dc.contributor.authorCarandang, S.
dc.contributor.authorMisra, G.
dc.contributor.authorIgnacio, J.C.
dc.contributor.authorKretzschmar, T.
dc.contributor.authorSreenivasulu, N.
dc.contributor.authorBoyd, L.A.
dc.date.accessioned2023-10-30T10:40:11Z
dc.date.available2023-10-30T10:40:11Z
dc.date.issued2023
dc.identifier.citationMbanjo, E., Pasion, E., Jones, H., Carandang, S., Misra, G., Ignacio, J.C., ... & Boyd, L.A. (2023). Unravelling marker trait associations linking nutritional value with pigmentation in rice seed. Plant Genome: e20360, 1-21.
dc.identifier.issn1940-3372
dc.identifier.urihttps://hdl.handle.net/20.500.12478/8318
dc.description.abstractWhile considerable breeding effort has focused on increasing the yields of staple crops such as rice and the levels of micronutrients such as iron and zinc, breeding to address the problems of the double-burden of malnutrition has received less attention. Pigmented rice has higher nutritional value and greater health benefits compared to white rice. However, the genetic associations underlying pericarp coloration and accumulation of nutritionally valuable compounds is still poorly understood. Here we report the targeted genetic analysis of 364 rice accessions, assessing the genetic relationship between pericarp coloration (measured using multi-spectral imaging) and a range of phenolic compounds with potential nutritional and health-promoting characteristics. A genome-wide association study resulted in the identification of over 280 single nucleotide polymorphisms (SNPs) associated with the traits of interest. Many of the SNPs were associated with more than one trait, colocalization occurring between nutritional traits, and nutritional and color-related traits. Targeted association analysis identified 67 SNPs, located within 52 candidate genes and associated with 24 traits. Six haplotypes identified within the genes Rc/bHLH17 and OsIPT5 indicated that these genes have an important role in the regulation of a wide range of phenolic compounds, and not only those directly conferring pericarp color. These identified genetic linkages between nutritionally valuable phenolic compounds and pericarp color present not only a valuable resource for the enhancement of the nutritional value of rice but an easy method of selection of suitable genotypes.
dc.description.sponsorshipBiotechnology and Biological Sciences Research Council
dc.format.extent1-21
dc.language.isoen
dc.subjectRice
dc.subjectCrop Yield
dc.subjectVarieties
dc.subjectGenome-Wide Association Studies
dc.subjectSingle Nucleotide Polymorphism
dc.titleUnravelling marker trait associations linking nutritional value with pigmentation in rice seed
dc.typeJournal Article
cg.contributor.affiliationInternational Rice Research Institute
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.contributor.affiliationNational Institute of Agricultural Botany, UK
cg.coverage.regionSoutheast Asia
cg.coverage.hubHeadquarters and Western Africa Hub
cg.identifier.bibtexciteidMBANJO:2023
cg.isijournalISI Journal
cg.authorship.typesCGIAR and advanced research institute
cg.iitasubjectAgronomy
cg.iitasubjectCrop Systems
cg.iitasubjectFood Security
cg.iitasubjectPlant Breeding
cg.iitasubjectPlant Production
cg.iitasubjectValue Chains
cg.journalPlant Genome
cg.notesOpen Access Journal
cg.accessibilitystatusOpen Access
cg.reviewstatusPeer Review
cg.usagerightslicenseCreative Commons Attribution 4.0 (CC BY 0.0)
cg.targetaudienceScientists
cg.identifier.doihttps://doi.org/10.1002/tpg2.20360
cg.iitaauthor.identifierGaby Mbanjo: 0000-0002-9982-1137
cg.futureupdate.requiredNo
cg.identifier.issuee20360


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