Registro Completo |
Biblioteca(s): |
Embrapa Semiárido. |
Data corrente: |
30/11/2000 |
Data da última atualização: |
05/05/2016 |
Tipo da produção científica: |
Artigo em Anais de Congresso |
Autoria: |
ALLEM, A. C.; ROA, A. C.; MENDES, R. A.; SALOMAO, A. N.; BURLE, M. L.; SECOND, G.; CARVALHO, P. C. L. de; CAVALCANTI, J. |
Afiliação: |
JOSIAS CAVALCANTI, CPATSA. |
Título: |
The primary gene pool of cassava (Manihot esculenta Crantz). |
Ano de publicação: |
2000 |
Fonte/Imprenta: |
In: INTERNATIONAL SCIENTIFIC MEETING CASSAVA BIOTECHNOLOGY NETWORK, 4., 1998, Salvador. Cassava biotechnology: proceedings. Brasília, DF: EMBRAPA-CENARGEN: CBN, 2000. |
Páginas: |
P. 3-14. |
ISBN: |
85-87697-05-6 |
Idioma: |
Inglês |
Conteúdo: |
A crop gene pool comprises three distinct categories of gene suppliers, primary, secondary, and tertiary gene pools. The primary gene pool (GP-1) is composed of gene reservoirs that cross easily with the domesticate and the crosses produce fertile offspring regularly. The secondary (GP-2) and tertiary (GP-3) gene pools comprise gene sources that cross with variable degrees of diffilculty with the crop species, this implies less close genetic distances. The GP-1 is further subdivided in cultivated and wild gene pools. The cultivated gene pool englobes commercial stocks of the crop besides indigenous landraces and folk varieties of the domesticate. The wild GP-1 of a crop comprises putative ancestors and closely related species that show a fair degree of fertile relationships with the domesticate. Two Douth American wild subspecies of cassava (M. flabellifolia and M. peruviana) are natural members of the wild GP-1 of the species. Another Brazilian species (M. pruinosa) is so close morphologically to the two wild subspecies of cassava that it may turn out another member of the wild GP-1 of the indigen. The GP-2 of cassava is more difficult to delimit as few species have been tested for genetic compatibility. Biosystematic crosses carried out between the crop and a number of wild species suggest a dozen of them as components of the GP-2, the majority are Brazilian species. |
Palavras-Chave: |
Biotecnology. |
Thesagro: |
Biotecnologia; Espécie; Mandioca; Manihot Esculenta; Taxonomia. |
Thesaurus Nal: |
Cassava. |
Categoria do assunto: |
Q Alimentos e Nutrição Humana |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/142796/1/ID-8742-1.pdf
|
Marc: |
LEADER 02280nam a2200301 a 4500 001 1134074 005 2016-05-05 008 2000 bl uuuu u00u1 u #d 020 $a85-87697-05-6 100 1 $aALLEM, A. C. 245 $aThe primary gene pool of cassava (Manihot esculenta Crantz). 260 $aIn: INTERNATIONAL SCIENTIFIC MEETING CASSAVA BIOTECHNOLOGY NETWORK, 4., 1998, Salvador. Cassava biotechnology: proceedings. Brasília, DF: EMBRAPA-CENARGEN: CBN$c2000 300 $aP. 3-14. 520 $aA crop gene pool comprises three distinct categories of gene suppliers, primary, secondary, and tertiary gene pools. The primary gene pool (GP-1) is composed of gene reservoirs that cross easily with the domesticate and the crosses produce fertile offspring regularly. The secondary (GP-2) and tertiary (GP-3) gene pools comprise gene sources that cross with variable degrees of diffilculty with the crop species, this implies less close genetic distances. The GP-1 is further subdivided in cultivated and wild gene pools. The cultivated gene pool englobes commercial stocks of the crop besides indigenous landraces and folk varieties of the domesticate. The wild GP-1 of a crop comprises putative ancestors and closely related species that show a fair degree of fertile relationships with the domesticate. Two Douth American wild subspecies of cassava (M. flabellifolia and M. peruviana) are natural members of the wild GP-1 of the species. Another Brazilian species (M. pruinosa) is so close morphologically to the two wild subspecies of cassava that it may turn out another member of the wild GP-1 of the indigen. The GP-2 of cassava is more difficult to delimit as few species have been tested for genetic compatibility. Biosystematic crosses carried out between the crop and a number of wild species suggest a dozen of them as components of the GP-2, the majority are Brazilian species. 650 $aCassava 650 $aBiotecnologia 650 $aEspécie 650 $aMandioca 650 $aManihot Esculenta 650 $aTaxonomia 653 $aBiotecnology 700 1 $aROA, A. C. 700 1 $aMENDES, R. A. 700 1 $aSALOMAO, A. N. 700 1 $aBURLE, M. L. 700 1 $aSECOND, G. 700 1 $aCARVALHO, P. C. L. de 700 1 $aCAVALCANTI, J.
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Embrapa Semiárido (CPATSA) |
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