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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
25/02/2005 |
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Data da última atualização: |
25/02/2005 |
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Autoria: |
ABREU, Â. de F. B.; RAMALHO, M. A. P.; CARNEIRO, J. E. de S.; GONÇALVES, F. M. A. |
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Título: |
Seleção recorrente fenotípica no melhoramento do feijoeiro visando a resistência a Phaeoisariopsis griseola. |
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Ano de publicação: |
2002 |
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Fonte/Imprenta: |
In: CONGRESSO NACIONAL DE PESQUISA DE FEIJÃO, 7., 2002, Viçosa, MG. Resumos expandidos. Viçosa: UFV; DFT, 2002. |
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Páginas: |
p. 233-235. |
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Idioma: |
Português |
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Thesagro: |
Feijão; Melhoramento; Phaseolus Vulgaris; Seleção Recorrente. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00701naa a2200205 a 4500
001 1212530
005 2005-02-25
008 2002 bl uuuu u00u1 u #d
100 1 $aABREU, Â. de F. B.
245 $aSeleção recorrente fenotípica no melhoramento do feijoeiro visando a resistência a Phaeoisariopsis griseola.
260 $c2002
300 $ap. 233-235.
650 $aFeijão
650 $aMelhoramento
650 $aPhaseolus Vulgaris
650 $aSeleção Recorrente
700 1 $aRAMALHO, M. A. P.
700 1 $aCARNEIRO, J. E. de S.
700 1 $aGONÇALVES, F. M. A.
773 $tIn: CONGRESSO NACIONAL DE PESQUISA DE FEIJÃO, 7., 2002, Viçosa, MG. Resumos expandidos. Viçosa: UFV; DFT, 2002.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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Registro Completo
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Biblioteca(s): |
Embrapa Agricultura Digital. |
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Data corrente: |
04/02/2020 |
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Data da última atualização: |
07/07/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
WISSER, R. J.; FANG, Z.; HOLLAND, J. B.; YASSITEPE, J. E. de C. T.; DOUGHERTY, J.; WELDEKIDAN, T.; DE LEON, N.; FLINT-GARCIA, S.; LAUTER, N.; MURRAY, S. C.; XU, W.; HALLAUER, A. |
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Afiliação: |
RANDALL J. WISSER, University of Delaware; ZHOU FANG, North Carolina State University; JAMES B. HOLLAND, North Carolina State University, US Department of Agriculture-Agricultural Research Service; JULIANA ERIKA DE C T YASSITEPE, CNPTIA, University of Delaware; JOHN DOUGHERTY, University of Delaware; TECLEMARIAM WELDEKIDAN, University of Delaware; NATALIA DE LEON, University of Wisconsin; SHERRY FLINT-GARCIA, US Department of Agriculture-Agricultural Research Service, University of Missouri; NICK LAUTER, US Department of Agriculture-Agricultural Rese-arch Service, Iowa State University; SETH C. MURRAY, Texas A&M University; WENWEI XU, Texas A&M AgriLife Research; ARNEL HALLAUER, Iowa State University. |
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Título: |
The genomic basis for short-term evolution of environmental adaptation in maize. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Genetics, v. 213, p. 1479-1494, Dec. 2019. |
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DOI: |
https://doi.org/10.1534/genetics.119.302780 |
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Idioma: |
Inglês |
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Notas: |
Na publicação: Juliana E. C. Teixeira. |
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Conteúdo: |
ABSTRACT Understanding the evolutionary capacity of populations to adapt to novel environments is one of the major pursuits in genetics. Moreover, for plant breeding, maladaptation is the foremost barrier to capitalizing on intraspecific variation in order to develop new breeds for future climate scenarios in agriculture. Using a unique study design, we simultaneously dissected the population and quantitative genomic basis of short-term evolution in a tropical landrace of maize that was translocated to a temperate environment and phenotypically selected for adaptation in flowering time phenology. Underlying 10 generations of directional selection, which resulted in a 26-day mean decrease in female-flowering time, 60% of the heritable variation mapped to 14% of the genome, where, overall, alleles shifted in frequency beyond the boundaries of genetic drift in the expected direction given their flowering time effects. However, clustering these non-neutral alleles based on their profiles of frequency change revealed transient shifts underpinning a transition in genotype-phenotype relationships across generations. This was distinguished by initial reductions in the frequencies of few relatively large positive effect alleles and subsequent enrichment of many rare negative effect alleles, some of which appear to represent allelic series. With these genomic shifts, the population reached an adapted state while retaining 99% of the standing molecular marker variation in the founding population. Robust selection and association mapping tests highlighted several key genes driving the phenotypic response to selection. Our results reveal the evolutionary dynamics of a finite polygenic architecture conditioning a capacity for rapid environmental adaptation in maize. MenosABSTRACT Understanding the evolutionary capacity of populations to adapt to novel environments is one of the major pursuits in genetics. Moreover, for plant breeding, maladaptation is the foremost barrier to capitalizing on intraspecific variation in order to develop new breeds for future climate scenarios in agriculture. Using a unique study design, we simultaneously dissected the population and quantitative genomic basis of short-term evolution in a tropical landrace of maize that was translocated to a temperate environment and phenotypically selected for adaptation in flowering time phenology. Underlying 10 generations of directional selection, which resulted in a 26-day mean decrease in female-flowering time, 60% of the heritable variation mapped to 14% of the genome, where, overall, alleles shifted in frequency beyond the boundaries of genetic drift in the expected direction given their flowering time effects. However, clustering these non-neutral alleles based on their profiles of frequency change revealed transient shifts underpinning a transition in genotype-phenotype relationships across generations. This was distinguished by initial reductions in the frequencies of few relatively large positive effect alleles and subsequent enrichment of many rare negative effect alleles, some of which appear to represent allelic series. With these genomic shifts, the population reached an adapted state while retaining 99% of the standing molecular marker variation in the founding ... Mostrar Tudo |
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Palavras-Chave: |
Diversidade gênica; Flowering time; Genetic diversity; Mudanças climáticas. |
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Thesagro: |
Agricultura. |
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Thesaurus NAL: |
Agriculture; Climate change; Plant breeding; Recurrent selection; United Nations Framework Convention on Climate Change. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/210255/1/AP-Genomic-Basis.pdf
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Marc: |
LEADER 02965naa a2200397 a 4500
001 2119838
005 2020-07-07
008 2019 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1534/genetics.119.302780$2DOI
100 1 $aWISSER, R. J.
245 $aThe genomic basis for short-term evolution of environmental adaptation in maize.$h[electronic resource]
260 $c2019
500 $aNa publicação: Juliana E. C. Teixeira.
520 $aABSTRACT Understanding the evolutionary capacity of populations to adapt to novel environments is one of the major pursuits in genetics. Moreover, for plant breeding, maladaptation is the foremost barrier to capitalizing on intraspecific variation in order to develop new breeds for future climate scenarios in agriculture. Using a unique study design, we simultaneously dissected the population and quantitative genomic basis of short-term evolution in a tropical landrace of maize that was translocated to a temperate environment and phenotypically selected for adaptation in flowering time phenology. Underlying 10 generations of directional selection, which resulted in a 26-day mean decrease in female-flowering time, 60% of the heritable variation mapped to 14% of the genome, where, overall, alleles shifted in frequency beyond the boundaries of genetic drift in the expected direction given their flowering time effects. However, clustering these non-neutral alleles based on their profiles of frequency change revealed transient shifts underpinning a transition in genotype-phenotype relationships across generations. This was distinguished by initial reductions in the frequencies of few relatively large positive effect alleles and subsequent enrichment of many rare negative effect alleles, some of which appear to represent allelic series. With these genomic shifts, the population reached an adapted state while retaining 99% of the standing molecular marker variation in the founding population. Robust selection and association mapping tests highlighted several key genes driving the phenotypic response to selection. Our results reveal the evolutionary dynamics of a finite polygenic architecture conditioning a capacity for rapid environmental adaptation in maize.
650 $aAgriculture
650 $aClimate change
650 $aPlant breeding
650 $aRecurrent selection
650 $aUnited Nations Framework Convention on Climate Change
650 $aAgricultura
653 $aDiversidade gênica
653 $aFlowering time
653 $aGenetic diversity
653 $aMudanças climáticas
700 1 $aFANG, Z.
700 1 $aHOLLAND, J. B.
700 1 $aYASSITEPE, J. E. de C. T.
700 1 $aDOUGHERTY, J.
700 1 $aWELDEKIDAN, T.
700 1 $aDE LEON, N.
700 1 $aFLINT-GARCIA, S.
700 1 $aLAUTER, N.
700 1 $aMURRAY, S. C.
700 1 $aXU, W.
700 1 $aHALLAUER, A.
773 $tGenetics$gv. 213, p. 1479-1494, Dec. 2019.
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