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Registro Completo |
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
30/09/2021 |
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Data da última atualização: |
16/12/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
COSTA, A. E da S.; SANTOS, C. A. F. |
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Afiliação: |
A. E. DA S. COSTA, UFRPE; CARLOS ANTONIO FERNANDES SANTOS, CPATSA. |
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Título: |
Genetic diversity and structure of pigeonpea germplasm assessed by microsatellite markers. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Genetics and Molecular Research, v. 20, n. 1, Mar. 2021. |
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DOI: |
http://dx.doi.org/10.4238/gmr18807 |
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Idioma: |
Inglês |
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Conteúdo: |
The pigeonpea is an important grain legume in various regions of the world. It is a pulse that is cultivated mainly by small farmers in semi-arid tropical regions for various purposes, including food security, livestock feed, and agroforestry systems. We examined the genetic diversity and structure of 73 pigeonpea accessions from 10 origins, including regions of Brazil, Central America, and India. Allelic diversity and polymorphism, molecular analysis of variance (AMOVA), Bayesian analysis (Structure) and a dendrogram were estimated based on data concerning 11 microsatellite loci. AMOVA revealed wide genetic differentiation among the pigeonpea populations, with FST ranging from 0.22 to 0.25. Expected heterozygosity in the accessions was greater than the observed heterozygosity in eight of the 11 loci, with the observed heterozygosity ranging from 0.06 to 0.55. Polymorphic information content ranged from 0.13 to 0.67 among the 11 loci. Genetic similarity among pigeonpea accessions ranged from 0.26 to 0.93, indicating considerable variability among them, with the formation of three groups, one of which included all Brazilian accessions. Two groups were formed in the Structure analysis, indicating reduced allele sharing between the populations of Northeast Brazil and other populations. This information highlights the importance of incorporating germplasm from the Brazilian Northeast into pigeonpea breeding programs in Brazil, to increase the variability in germplasm collections. |
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Palavras-Chave: |
Dendrogram; Diversidade genetica; Feijão bóer; Marcadores microssatélites; Pigeonpea germplasm; Pigeonpeas; Pulses; Redgram. |
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Thesagro: |
Banco de Germoplasma; Cajanus Cajan; Feijão; Germoplasma; Leguminosa; Melhoramento Genético Vegetal. |
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Thesaurus Nal: |
Genetic markers; Germplasm. |
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Categoria do assunto: |
G Melhoramento Genético |
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Marc: |
LEADER 02485naa a2200337 a 4500
001 2134909
005 2021-12-16
008 2021 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.4238/gmr18807$2DOI
100 1 $aCOSTA, A. E da S.
245 $aGenetic diversity and structure of pigeonpea germplasm assessed by microsatellite markers.$h[electronic resource]
260 $c2021
520 $aThe pigeonpea is an important grain legume in various regions of the world. It is a pulse that is cultivated mainly by small farmers in semi-arid tropical regions for various purposes, including food security, livestock feed, and agroforestry systems. We examined the genetic diversity and structure of 73 pigeonpea accessions from 10 origins, including regions of Brazil, Central America, and India. Allelic diversity and polymorphism, molecular analysis of variance (AMOVA), Bayesian analysis (Structure) and a dendrogram were estimated based on data concerning 11 microsatellite loci. AMOVA revealed wide genetic differentiation among the pigeonpea populations, with FST ranging from 0.22 to 0.25. Expected heterozygosity in the accessions was greater than the observed heterozygosity in eight of the 11 loci, with the observed heterozygosity ranging from 0.06 to 0.55. Polymorphic information content ranged from 0.13 to 0.67 among the 11 loci. Genetic similarity among pigeonpea accessions ranged from 0.26 to 0.93, indicating considerable variability among them, with the formation of three groups, one of which included all Brazilian accessions. Two groups were formed in the Structure analysis, indicating reduced allele sharing between the populations of Northeast Brazil and other populations. This information highlights the importance of incorporating germplasm from the Brazilian Northeast into pigeonpea breeding programs in Brazil, to increase the variability in germplasm collections.
650 $aGenetic markers
650 $aGermplasm
650 $aBanco de Germoplasma
650 $aCajanus Cajan
650 $aFeijão
650 $aGermoplasma
650 $aLeguminosa
650 $aMelhoramento Genético Vegetal
653 $aDendrogram
653 $aDiversidade genetica
653 $aFeijão bóer
653 $aMarcadores microssatélites
653 $aPigeonpea germplasm
653 $aPigeonpeas
653 $aPulses
653 $aRedgram
700 1 $aSANTOS, C. A. F.
773 $tGenetics and Molecular Research$gv. 20, n. 1, Mar. 2021.
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Registro original: |
Embrapa Semiárido (CPATSA) |
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