Genome-wide association study for root morphology and phosphorus acquisition efficiency in diverse maize panels.

Vista sencilla de ítem
dc.contributorCARLOS ALEXANDRE GOMES RIBEIRO, Universidade Federal de Viçosa; SYLVIA MORAIS DE SOUSA TINOCO, CNPMS; VANDER FILLIPE DE SOUZA, Universidade Federal de São João del-Rei; BARBARA FRANÇA NEGRI, Universidade Federal de São João del-Rei; CHRISTINE MARIE GAULT, Cornell University; MARIA MARTA PASTINA, CNPMS; JURANDIR VIEIRA DE MAGALHAES, CNPMS; LAURO JOSE MOREIRA GUIMARAES, CNPMS; EVERALDO GONÇALVES DE BARROS, Universidade Federal de Viçosa; EDWARD S. BUCKLER, USDA-ARS; CLAUDIA TEIXEIRA GUIMARAES, CNPMS.
dc.creatorRIBEIRO, C. A. G.
dc.creatorSOUSA, S. M. de
dc.creatorSOUZA, V. F. de
dc.creatorNEGRI, B. F.
dc.creatorGAULT, C. M.
dc.creatorPASTINA, M. M.
dc.creatorMAGALHAES, J. V. de
dc.creatorGUIMARAES, L. J. M.
dc.creatorBARROS, E. G. de
dc.creatorBUCKLER. E. S.
dc.creatorGUIMARÃES, C. T.
dc.date2023-04-25T18:02:29Z
dc.date2023-04-25T18:02:29Z
dc.date2023-04-25
dc.date2023
dc.date.accessioned2026-07-07T05:25:59Z
dc.descriptionMaximizing soil exploration through modifications of the root system is a strategy for plants to overcome phosphorus (P) deficiency. Genome-wide association with 561 tropical maize inbred lines from Embrapa and DTMA panels was undertaken for root morphology and P acquisition traits under low- and high-P concentrations, with 353,540 SNPs. P supply modified root morphology traits, biomass and P content in the global maize panel, but root length and root surface area changed differentially in Embrapa and DTMA panels. This suggests that different root plasticity mechanisms exist for maize adaptation to low-P conditions. A total of 87 SNPs were associated to phenotypic traits in both P conditions at ?log10(p-value) ? 5, whereas only seven SNPs reached the Bonferroni significance. Among these SNPs, S9_137746077, which is located upstream of the gene GRMZM2G378852 that encodes a MAPKKK protein kinase, was significantly associated with total seedling dry weight, with the same allele increasing root length and root surface area under P deficiency. The C allele of S8_88600375, mapped within GRMZM2G044531 that encodes an AGC kinase, significantly enhanced root length under low P, positively affecting root surface area and seedling weight. The broad genetic diversity evaluated in this panel suggests that candidate genes and favorable alleles could be exploited to improve P efficiency in maize breeding programs of Africa and Latin America.
dc.identifierInternational Journal of Molecular Sciences, v. 24, n. 7, 6233, 2023.
dc.identifierhttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1153347
dc.identifierhttps://doi.org/10.3390/ijms24076233
dc.identifier.urihttp://hdl.handle.net/123456789/490999
dc.languageeng
dc.rightsopenAccess
dc.subjectMorfologia radicular
dc.subjectDeficiência de fósforo
dc.subjectMilho
dc.subjectMorfologia Vegetal
dc.subjectSistema Radicular
dc.subjectPlant morphology
dc.subjectRoots
dc.subjectPhosphorus
dc.titleGenome-wide association study for root morphology and phosphorus acquisition efficiency in diverse maize panels.
dc.typeArtigo de periódico

Archivos

Colecciones

Embrapa Maíz y Sorgo (CNPMS)