Abstract
The primary gene pool (GP-1) of a crop is composed of gene reservoirs that cross easily with the domesticated, while the crosses regularly produce fertile offspring. The GP-1 is further subdivided into cultivated and wild gene pools. The cultivated gene pool encompasses commercial stocks of the crop, as well as landraces. The wild GP-1 of the crop comprises putative ancestors and closely related species that show a fair degree of fertile relationships with the domesticate. Two South American wild subspecies of cassava (M. flabellifolia and M. peruviana) were proposed as natural members of the wild GP-1 of the crop. Another Brazilian species(M. pruinosa) is morphologically so close to both wild subspecies that it may turn out as another member of the wild GP-1.
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Allem, A., Mendes, R., Salomão, A. et al. The primary gene pool of cassava (Manihot esculenta Crantz subspecies esculenta, Euphorbiaceae). Euphytica 120, 127–132 (2001). https://doi.org/10.1023/A:1017544813397
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DOI: https://doi.org/10.1023/A:1017544813397