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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
09/11/1993 |
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Data da última atualização: |
09/11/1993 |
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Autoria: |
SCHOEN, D. J.; BROWN, A. H. D. |
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Afiliação: |
Department of Biology, 1205 Avenue Dr. Penfield, Montreal, Quebec H3A 1B1, Canada; CSIRO Division of Plant Industry, GPO Box 1600, Canberra, A.C.T. 2601, Australia. |
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Título: |
Maximizing genetic diversity in core collection of wild crop relatives. |
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Ano de publicação: |
0 |
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Fonte/Imprenta: |
s. n. t. |
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Páginas: |
p.01-02 |
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Idioma: |
Inglês |
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Conteúdo: |
The conservation of genetic diversity of wild relatives is an important component of efforts to conserve crop genetic diversity. Including wild relatives in gene banks, however, presents several problems. First, there are many more species and populations of wild relatives than of crop plants, and it is practical to collect and maintain only a small portion of these. Second, due to their often wide-ranging geographical distributions, exploration and collection of wild relatives may involve significant costs. Third, reproductive biological characteristics such as low seed set and poor seed germination may make it costly to maintain wild relatives in gene banks. Fourth, many breeders use relatives only when the veriability they need is absent from elite lines.The challenge, therefore, is to make the variability of wild relatives more acessible at minimum cost. In this regard, the core collection may be an essential part of efforts to assemble a germplasm base of wild relatives that can be effectively exploited for plant improvement. |
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Thesagro: |
Banco de Germoplasma; Mutação; Variação Genética. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01503naa a2200181 a 4500
001 1646358
005 1993-11-09
008 bl --- 0-- u #d
100 1 $aSCHOEN, D. J.
245 $aMaximizing genetic diversity in core collection of wild crop relatives.
260 $c0
300 $ap.01-02
520 $aThe conservation of genetic diversity of wild relatives is an important component of efforts to conserve crop genetic diversity. Including wild relatives in gene banks, however, presents several problems. First, there are many more species and populations of wild relatives than of crop plants, and it is practical to collect and maintain only a small portion of these. Second, due to their often wide-ranging geographical distributions, exploration and collection of wild relatives may involve significant costs. Third, reproductive biological characteristics such as low seed set and poor seed germination may make it costly to maintain wild relatives in gene banks. Fourth, many breeders use relatives only when the veriability they need is absent from elite lines.The challenge, therefore, is to make the variability of wild relatives more acessible at minimum cost. In this regard, the core collection may be an essential part of efforts to assemble a germplasm base of wild relatives that can be effectively exploited for plant improvement.
650 $aBanco de Germoplasma
650 $aMutação
650 $aVariação Genética
700 1 $aBROWN, A. H. D.
773 $ts.$gn. t.
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Embrapa Mandioca e Fruticultura (CNPMF) |
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