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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
18/07/1995 |
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Data da última atualização: |
18/07/1995 |
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Autoria: |
ORTIZ, R.; VUYLSTEKE, D. R. |
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Afiliação: |
International Institute of tropical Agriculture, Ibadan, Nigeria. |
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Título: |
Inheritance of Albinism in Banana and plantin (Musa spp.) and its Significance in breeding. |
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Ano de publicação: |
1994 |
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Fonte/Imprenta: |
Hort Science v.29, n.8, p.903-905, 1994. |
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Idioma: |
Inglês |
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Conteúdo: |
Few genetic markers are available in Musa spp. as a result of a lack of inheritance studies. Full-sid diploid (2n = 2x = 22) plantain-banana hybrids of the International Institute of tropical Agriculture were selfed or outcrossed with other diploid bananas, one of which is an improved selection from Central America. Three populations having albinos(complete lack of chlorophyll in any plant tissue) were produced. The segregation ratios for albinism suggested that this deleterious trait is controlled by one or two recessive alleles. The small sample sizes (a problem inherent in the low reproductive fertility of cultivated parthenocarpic Musa) in two of these three populations did not allow for conclusiveness between the one or two genes model. However, a distinction was possible with the third population, consisting of 64 seedlings, of wchich four were albinos. |
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Palavras-Chave: |
Phenotypic recurrent selection; Recessive deleterious alleles. |
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Thesaurus Nal: |
embryo culture. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01382naa a2200169 a 4500
001 1646681
005 1995-07-18
008 1994 bl --- 0-- u #d
100 1 $aORTIZ, R.
245 $aInheritance of Albinism in Banana and plantin (Musa spp.) and its Significance in breeding.
260 $c1994
520 $aFew genetic markers are available in Musa spp. as a result of a lack of inheritance studies. Full-sid diploid (2n = 2x = 22) plantain-banana hybrids of the International Institute of tropical Agriculture were selfed or outcrossed with other diploid bananas, one of which is an improved selection from Central America. Three populations having albinos(complete lack of chlorophyll in any plant tissue) were produced. The segregation ratios for albinism suggested that this deleterious trait is controlled by one or two recessive alleles. The small sample sizes (a problem inherent in the low reproductive fertility of cultivated parthenocarpic Musa) in two of these three populations did not allow for conclusiveness between the one or two genes model. However, a distinction was possible with the third population, consisting of 64 seedlings, of wchich four were albinos.
650 $aembryo culture
653 $aPhenotypic recurrent selection
653 $aRecessive deleterious alleles
700 1 $aVUYLSTEKE, D. R.
773 $tHort Science$gv.29, n.8, p.903-905, 1994.
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Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
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