The primary gene pool of cassava (Manihot esculenta Crantz).

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dc.contributorJOSIAS CAVALCANTI, CPATSA.
dc.creatorALLEM, A. C.
dc.creatorROA, A. C.
dc.creatorMENDES, R. A.
dc.creatorSALOMAO, A. N.
dc.creatorBURLE, M. L.
dc.creatorSECOND, G.
dc.creatorCARVALHO, P. C. L. de
dc.creatorCAVALCANTI, J.
dc.date2016-05-10T11:37:11Z
dc.date2016-05-10T11:37:11Z
dc.date2000-11-30
dc.date2000
dc.date2016-05-10T11:37:11Z
dc.date.accessioned2026-07-07T05:45:49Z
dc.descriptionA 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.
dc.formatP. 3-14.
dc.identifierIn: INTERNATIONAL SCIENTIFIC MEETING CASSAVA BIOTECHNOLOGY NETWORK, 4., 1998, Salvador. Cassava biotechnology: proceedings. Brasília, DF: EMBRAPA-CENARGEN: CBN, 2000.
dc.identifier85-87697-05-6
dc.identifierhttp://www.alice.cnptia.embrapa.br/alice/handle/doc/134074
dc.identifier.urihttp://hdl.handle.net/123456789/499430
dc.languageeng
dc.rightsopenAccess
dc.subjectBiotecnology
dc.subjectMandioca
dc.subjectBiotecnologia
dc.subjectEspécie
dc.subjectManihot Esculenta
dc.subjectTaxonomia
dc.subjectCassava
dc.titleThe primary gene pool of cassava (Manihot esculenta Crantz).
dc.typeArtigo em anais e proceedings

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