Genome-wide analyses reveal footprints of divergent selection and popping-related traits in CIMMYT’s maize inbred lines

dc.creatorJing Li
dc.creatorDelin Li
dc.creatorZavala Espinosa, C.
dc.creatorTrejo Pastor, V.
dc.creatorRasheed, A.
dc.creatorPalacios-Rojas, N.
dc.creatorJiankang Wang
dc.creatorSantacruz-Varela, A.
dc.creatorDe Almeida Silva, N.C.
dc.creatorSchnable, P.S.
dc.creatorCostich, D.E.
dc.creatorHuihui Li
dc.date2021-01-20T01:10:15Z
dc.date2021-01-20T01:10:15Z
dc.date2021
dc.date.accessioned2023-07-17T20:06:41Z
dc.date.available2023-07-17T20:06:41Z
dc.identifierhttps://hdl.handle.net/10883/21133
dc.identifier10.1093/jxb/eraa480
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7512919
dc.descriptionPopcorn (Zea mays L. var. Everta) is the most ancient type of cultivated maize. However, there is little known about the genetics of popping-related traits based on genotyping-by-sequencing (GBS) technology. Here, we characterized the phenotypic variation for seven popping-related traits in maize kernels among 526 CIMMYT inbred lines (CMLs). In total, 155 083 high-quality single nucleotide polymorphism (SNP) markers were identified by a GBS approach. Several trait-associated loci were detected by genome-wide association study for color, popping expansion volume, shape, pericarp, flotation index, floury/vitreous, and protein content, explaining a majority of the observed phenotypic variance, and these were validated by a diverse panel comprising 764 tropical landrace accessions. Sixty two of the identified loci were recognized to have undergone selection. On average, there was a 55.27% frequency for alleles that promote popping in CMLs. Our work not only pinpoints previously unknown loci for popping-related traits, but also reveals that many of these loci have undergone selection. Beyond establishing a new benchmark for the genetics of popcorn, our study provides a foundation for gene discovery and breeding. It also presents evidence to investigate the role of a gradual loss of popping ability as a by-product of diversification of culinary uses throughout the evolution of teosinte–to–modern maize.
dc.description1307-1320
dc.languageEnglish
dc.publisherOxford University Press
dc.relationhttp://hdl.handle.net/11529/10246
dc.relationhttp://hdl.handle.net/11529/10423
dc.relationhttp://hdl.handle.net/11529/10548274
dc.relationhttps://academic.oup.com/jxb/article/72/4/1307/5929754#supplementary-data
dc.rightsCIMMYT manages Intellectual Assets as International Public Goods. The user is free to download, print, store and share this work. In case you want to translate or create any other derivative work and share or distribute such translation/derivative work, please contact CIMMYT-Knowledge-Center@cgiar.org indicating the work you want to use and the kind of use you intend; CIMMYT will contact you with the suitable license for that purpose
dc.rightsOpen Access
dc.source4
dc.source72
dc.source0022-0957
dc.sourceJournal of Experimental Botany
dc.subjectAGRICULTURAL SCIENCES AND BIOTECHNOLOGY
dc.subjectEigenGWAS
dc.subjectGenome-Wide Association Study
dc.subjectMaize Adaptation
dc.subjectPopping Traits
dc.subjectQuality Traits
dc.subjectTropical Maize Landrace
dc.subjectGENOMES
dc.subjectMAIZE
dc.subjectLAND RACES
dc.subjectPOPCORN
dc.subjectTROPICAL ZONES
dc.titleGenome-wide analyses reveal footprints of divergent selection and popping-related traits in CIMMYT’s maize inbred lines
dc.typeArticle
dc.typePublished Version
dc.coverageOxford (United Kingdom)


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