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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
14/07/1993 |
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Data da última atualização: |
14/07/1993 |
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Autoria: |
BROWN. A. H. D.; BURDON. J. J.; GRACE J. P. |
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Afiliação: |
Division of Plant Industry. CSIRO. GPO Box 1600. Canberra ACT 2601.Australia. |
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Título: |
Genetic structure of Glycine canescens, a perennial relative of soybean |
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Ano de publicação: |
1990 |
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Fonte/Imprenta: |
Theoretical and Applied Genetics. v. 79, p.729-736, 1990. |
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Idioma: |
Inglês |
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Conteúdo: |
Allozyme variation as detected by starch gel electrophoresis was used to assess the extent and spatial organization of genetic variation across the entire range of Glycine canescens sensu lato. Eleven enzyme systems were assayed in 116 accessions of this taxon and 102 alleles were detected at a total of 31 loci. Eighty-one percent of loci were polymorphic. Most of this variation occurred between and very little within accessions. Three major groupings were detected. These groupings (groups 1,2, and 3) also differed with respect to mean seed size and their geographic distribution. A further ten accessions were most closely related to group 3 but were variable among themselves. In general, they were collected from highly dissected terrain, often in the remote interior of the continent. A final group of 18 problematic accessions (group X), originally tentatively identified as G.canescens on morphological grounds, was shown to be isozymically distinct from this species and was reclassified as one from of the polytypic species G. clandestina. |
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Palavras-Chave: |
Collection strategies; Core collection; Geographic distribution; Glycine canescens: Allozyne variation. |
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Categoria do assunto: |
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Marc: |
LEADER 01630naa a2200193 a 4500
001 1646267
005 1993-07-14
008 1990 bl --- 0-- u #d
100 1 $aBROWN. A. H. D.
245 $aGenetic structure of Glycine canescens, a perennial relative of soybean
260 $c1990
520 $aAllozyme variation as detected by starch gel electrophoresis was used to assess the extent and spatial organization of genetic variation across the entire range of Glycine canescens sensu lato. Eleven enzyme systems were assayed in 116 accessions of this taxon and 102 alleles were detected at a total of 31 loci. Eighty-one percent of loci were polymorphic. Most of this variation occurred between and very little within accessions. Three major groupings were detected. These groupings (groups 1,2, and 3) also differed with respect to mean seed size and their geographic distribution. A further ten accessions were most closely related to group 3 but were variable among themselves. In general, they were collected from highly dissected terrain, often in the remote interior of the continent. A final group of 18 problematic accessions (group X), originally tentatively identified as G.canescens on morphological grounds, was shown to be isozymically distinct from this species and was reclassified as one from of the polytypic species G. clandestina.
653 $aCollection strategies
653 $aCore collection
653 $aGeographic distribution
653 $aGlycine canescens: Allozyne variation
700 1 $aBURDON. J. J.
700 1 $aGRACE J. P.
773 $tTheoretical and Applied Genetics.$gv. 79, p.729-736, 1990.
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Embrapa Mandioca e Fruticultura (CNPMF) |
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