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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão; Embrapa Recursos Genéticos e Biotecnologia; Embrapa Unidades Centrais. |
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Data corrente: |
23/01/2006 |
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Data da última atualização: |
14/05/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ALCOCHETE, A. A. N. de; RANGEL, P. H. N.; FERREIRA, M. E. |
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Afiliação: |
ANTONIO ALBERTO NEVES DE ALCOCHETE, UNIVERSIDADE AGOSTINHO NETO, Luanda-Angola; PAULO HIDEO NAKANO RANGEL, CNPAF; MARCIO ELIAS FERREIRA, Cenargen. |
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Título: |
Mapping of quantitative trait loci for thermosensitive genic male sterility in indica rice. |
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Ano de publicação: |
2005 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, v. 40, n. 12, p. 1179-1188, dez. 2005. |
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Idioma: |
Inglês |
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Conteúdo: |
The objective of this work was to select and use microsatellite markers, to map genomic regions associated with the genetic control of thermosensitive genic male sterility (TGMS) in rice. An F2 population, derived from the cross between fertile and TGMS indica lines, was used to construct a microsatellite-based genetic map of rice. The TGMS phenotype showed a continuous variation in the segregant population. A low level of segregation distortion was detected in the F2 (14.65%), whose cause was found to be zygotic selection. There was no evidence suggesting a cause-effect relationship between zygotic selection and the control of TGMS in this cross. A linkage map comprising 1,213.3 cM was constructed based on the segregation data of the F2 population. Ninety-five out of 116 microsatellite polymorphic markers were assembled into 11 linkage groups, with an average of 12.77 cM between two adjacent marker loci. The phenotypic and genotypic data allowed for the identification of three new quantitative trait loci (QTL) for thermosensitive genic male sterility in indica rice. Two of the QTL were mapped on chromosomes that, so far, have not been associated with the genetic control of the TGMS trait (chromosomes 1 and 12). The third QTL was mapped on chromosome 7, where a TGMS locus (tms2) has recently been mapped. Allelic tests will have to be developed, in order to clarify if the two regions are the same or not. |
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Palavras-Chave: |
arroz híbrido; genetic map; Hybrid; hybrid rice; mapa genético; Microsatélite; microsatellite; microssatélite. |
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Thesagro: |
Arroz; Melhoramento Genético Vegetal; Oryza Sativa. |
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Thesaurus Nal: |
rice. |
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Categoria do assunto: |
--
G Melhoramento Genético |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/AI-SEDE/33855/1/40n12a04.pdf
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Marc: |
LEADER 02242naa a2200289 a 4500
001 1207668
005 2022-05-14
008 2005 bl uuuu u00u1 u #d
100 1 $aALCOCHETE, A. A. N. de
245 $aMapping of quantitative trait loci for thermosensitive genic male sterility in indica rice.
260 $c2005
520 $aThe objective of this work was to select and use microsatellite markers, to map genomic regions associated with the genetic control of thermosensitive genic male sterility (TGMS) in rice. An F2 population, derived from the cross between fertile and TGMS indica lines, was used to construct a microsatellite-based genetic map of rice. The TGMS phenotype showed a continuous variation in the segregant population. A low level of segregation distortion was detected in the F2 (14.65%), whose cause was found to be zygotic selection. There was no evidence suggesting a cause-effect relationship between zygotic selection and the control of TGMS in this cross. A linkage map comprising 1,213.3 cM was constructed based on the segregation data of the F2 population. Ninety-five out of 116 microsatellite polymorphic markers were assembled into 11 linkage groups, with an average of 12.77 cM between two adjacent marker loci. The phenotypic and genotypic data allowed for the identification of three new quantitative trait loci (QTL) for thermosensitive genic male sterility in indica rice. Two of the QTL were mapped on chromosomes that, so far, have not been associated with the genetic control of the TGMS trait (chromosomes 1 and 12). The third QTL was mapped on chromosome 7, where a TGMS locus (tms2) has recently been mapped. Allelic tests will have to be developed, in order to clarify if the two regions are the same or not.
650 $arice
650 $aArroz
650 $aMelhoramento Genético Vegetal
650 $aOryza Sativa
653 $aarroz híbrido
653 $agenetic map
653 $aHybrid
653 $ahybrid rice
653 $amapa genético
653 $aMicrosatélite
653 $amicrosatellite
653 $amicrossatélite
700 1 $aRANGEL, P. H. N.
700 1 $aFERREIRA, M. E.
773 $tPesquisa Agropecuária Brasileira$gv. 40, n. 12, p. 1179-1188, dez. 2005.
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Embrapa Arroz e Feijão (CNPAF) |
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