Registro Completo |
Biblioteca(s): |
Embrapa Arroz e Feijão; Embrapa Florestas. |
Data corrente: |
17/09/2018 |
Data da última atualização: |
17/09/2018 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
RESENDE, R. T.; RESENDE, M. D. V. de; AZEVEDO, C. F.; SILVA, F. F. e; MELO, L. C.; PEREIRA, H. S.; SOUZA, T. L. P. O. de; VALDISSER, P. A. M. R.; BRONDANI, C.; VIANELLO, R. P. |
Afiliação: |
Rafael T. Resende, UFV; MARCOS DEON VILELA DE RESENDE, CNPF; Camila F. Azevedo, UFV; Fabyano Fonseca e Silva, UFV; LEONARDO CUNHA MELO, CNPAF; HELTON SANTOS PEREIRA, CNPAF; THIAGO LIVIO PESSOA OLIV DE SOUZA, CNPAF; PAULA ARIELLE M RIBEIRO VALDISSER, CNPAF; CLAUDIO BRONDANI, CNPAF; ROSANA PEREIRA VIANELLO, CNPAF. |
Título: |
Genome-wide association and regional heritability mapping of plant architecture, lodging and productivity in Phaseolus vulgaris. |
Ano de publicação: |
2018 |
Fonte/Imprenta: |
G3: Genes, Genomes, Genetics, v. 8, p. 2841-2854, Aug. 2018. |
Idioma: |
Inglês |
Conteúdo: |
The availability of high-density molecular markers in common bean has allowed to explore the genetic basis of important complex agronomic traits with increased resolution. Genome-Wide Association Studies (GWAS) and Regional Heritability Mapping (RHM) are two analytical approaches for the detection of genetic variants. We carried out GWAS and RHM for plant architecture, lodging and productivity across two important growing environments in Brazil in a germplasm of 188 common bean varieties using DArTseq genotyping strategies. The coefficient of determination of G · E interaction (c2 int) was equal to 17, 21 and 41%, respectively for the traits architecture, lodging, and productivity. Trait heritabilities were estimated at 0.81 (architecture), 0.79 (lodging) and 0.43 (productivity), and total genomic heritability accounted for large proportions (72% to 100%) of trait heritability. At the same probability threshold, three marker?trait associations were detected using GWAS, while RHM detected eight QTL encompassing 145 markers along five chromosomes. The proportion of genomic heritability explained by RHM was considerably higher (35.48 to 58.02) than that explained by GWAS (28.39 to 30.37). In general, RHM accounted for larger fractions of the additive genetic variance being captured by markers effects inside the defined regions. Nevertheless, a considerable proportion of the heritability is still missing (42% to 64%), probably due to LD between markers and genes and/or rare allele variants not sampled. RHM in autogamous species had the potential to identify larger-effect QTL combining allelic variants that could be effectively incorporated into whole-genome prediction models and tracked through breeding generations using marker-assisted selection. MenosThe availability of high-density molecular markers in common bean has allowed to explore the genetic basis of important complex agronomic traits with increased resolution. Genome-Wide Association Studies (GWAS) and Regional Heritability Mapping (RHM) are two analytical approaches for the detection of genetic variants. We carried out GWAS and RHM for plant architecture, lodging and productivity across two important growing environments in Brazil in a germplasm of 188 common bean varieties using DArTseq genotyping strategies. The coefficient of determination of G · E interaction (c2 int) was equal to 17, 21 and 41%, respectively for the traits architecture, lodging, and productivity. Trait heritabilities were estimated at 0.81 (architecture), 0.79 (lodging) and 0.43 (productivity), and total genomic heritability accounted for large proportions (72% to 100%) of trait heritability. At the same probability threshold, three marker?trait associations were detected using GWAS, while RHM detected eight QTL encompassing 145 markers along five chromosomes. The proportion of genomic heritability explained by RHM was considerably higher (35.48 to 58.02) than that explained by GWAS (28.39 to 30.37). In general, RHM accounted for larger fractions of the additive genetic variance being captured by markers effects inside the defined regions. Nevertheless, a considerable proportion of the heritability is still missing (42% to 64%), probably due to LD between markers and genes and/or rare alle... Mostrar Tudo |
Palavras-Chave: |
DArTseq; GWAS QTL; Herdabilidade; RHM QTL. |
Thesagro: |
Feijão; Melhoramento Genético Vegetal; Phaseolus Vulgaris. |
Thesaurus Nal: |
Beans; Heritability; Lodging resistance; Plant architecture; Plant breeding. |
Categoria do assunto: |
G Melhoramento Genético |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/183088/1/2018-M.Deon-G3-Genome-wide.pdf
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Marc: |
LEADER 02867naa a2200373 a 4500 001 2095838 005 2018-09-17 008 2018 bl uuuu u00u1 u #d 100 1 $aRESENDE, R. T. 245 $aGenome-wide association and regional heritability mapping of plant architecture, lodging and productivity in Phaseolus vulgaris.$h[electronic resource] 260 $c2018 520 $aThe availability of high-density molecular markers in common bean has allowed to explore the genetic basis of important complex agronomic traits with increased resolution. Genome-Wide Association Studies (GWAS) and Regional Heritability Mapping (RHM) are two analytical approaches for the detection of genetic variants. We carried out GWAS and RHM for plant architecture, lodging and productivity across two important growing environments in Brazil in a germplasm of 188 common bean varieties using DArTseq genotyping strategies. The coefficient of determination of G · E interaction (c2 int) was equal to 17, 21 and 41%, respectively for the traits architecture, lodging, and productivity. Trait heritabilities were estimated at 0.81 (architecture), 0.79 (lodging) and 0.43 (productivity), and total genomic heritability accounted for large proportions (72% to 100%) of trait heritability. At the same probability threshold, three marker?trait associations were detected using GWAS, while RHM detected eight QTL encompassing 145 markers along five chromosomes. The proportion of genomic heritability explained by RHM was considerably higher (35.48 to 58.02) than that explained by GWAS (28.39 to 30.37). In general, RHM accounted for larger fractions of the additive genetic variance being captured by markers effects inside the defined regions. Nevertheless, a considerable proportion of the heritability is still missing (42% to 64%), probably due to LD between markers and genes and/or rare allele variants not sampled. RHM in autogamous species had the potential to identify larger-effect QTL combining allelic variants that could be effectively incorporated into whole-genome prediction models and tracked through breeding generations using marker-assisted selection. 650 $aBeans 650 $aHeritability 650 $aLodging resistance 650 $aPlant architecture 650 $aPlant breeding 650 $aFeijão 650 $aMelhoramento Genético Vegetal 650 $aPhaseolus Vulgaris 653 $aDArTseq 653 $aGWAS QTL 653 $aHerdabilidade 653 $aRHM QTL 700 1 $aRESENDE, M. D. V. de 700 1 $aAZEVEDO, C. F. 700 1 $aSILVA, F. F. e 700 1 $aMELO, L. C. 700 1 $aPEREIRA, H. S. 700 1 $aSOUZA, T. L. P. O. de 700 1 $aVALDISSER, P. A. M. R. 700 1 $aBRONDANI, C. 700 1 $aVIANELLO, R. P. 773 $tG3: Genes, Genomes, Genetics$gv. 8, p. 2841-2854, Aug. 2018.
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Registro original: |
Embrapa Florestas (CNPF) |
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