Data/hora: 03/06/2024 11:21:23

Provedor de dados: | 1
País: | Brazil
Título: | Genetic linkage map and mapping of the locus of biological nitrogen fixation inefficiency in cowpea
Autores: | Seido, Sirando Lima; Fernandes Santos, Carlos Antonio.
Data: | 2019-09-05
Ano: | 2019
Palavras-chave: | Vigna unguiculata; Nitrogen fixation; Marker-assisted selection.
Resumo: | The objectives of the present study were to construct a cowpea genetic map using the F2 population resulting from the cross IC-1 x BRS Marataoã, based on single nucleotide polymorphism (SNP) markers, and to map the cpi gene, with additional reference to introgression with the consensus map of species, aiming to identify markers for assisted selection to develop more efficient cultivars for BNF. The parents and 89 F2 plants were genotyped with 51,128 SNP markers, of which 910 polymorphic markers were used to construct the map. The results revealed 11 linkage groups, with an average of 82 markers per chromosome and average distance of 1.26 cM between markers. Recombination analysis of the SNPs indicated that markers 2_12850 and 2_00188, located in linkage group 11, flanked the cpi gene at a distance of 6.7 cM and 5.64 cM, respectively. The introgression of linkage group 11 with the cowpea reference map revealed short distances (from zero to 0.6 cM) for these markers, indicating a strong association with the cpi gene. The constructed map and cpi mapping provide basic information that can assist the genetic breeding of more efficient cowpea plants for BNF by marker-assisted selection.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês

Identificador:

http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/42603

10.4025/actasciagron.v41i1.42603

Editor: | Universidade Estadual de Maringá
Relação: | http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/42603/751375148340
Formato: | application/pdf

Fonte:

Acta Scientiarum. Agronomy; Vol 41 (2019): Publicação Contínua; e42603

Acta Scientiarum. Agronomy; v. 41 (2019): Publicação Contínua; e42603

1807-8621

1679-9275

Fonte:

Copyright (c) 2019 Acta Scientiarum. Agronomy

https://creativecommons.org/licenses/by/4.0