Evolution of cassava (Manihot esculenta Crantz) after recent introduction into a South Pacific Island system. The contribution of sex to the diversification of a clonally propagated crop
Cassava (Manihot esculenta Crantz) is a clonally propagated crop that was introduced into the South Pacific archipelago of Vanuatu in the 1850s. Based on a survey conducted in 10 different villages throughout the archipelago, we present here a study of its diversity. Farmers¿ knowledge about cultivation cycle and sexual reproduction of cassava was recorded during group interviews in each village. Using a set of 11 SSR markers, we genotyped the 104 landraces collected and 60 supplementary accessions from a within-landrace study (12 landraces × 5 plants). Out of the 104 landraces collected, we discovered 77 different multilocus genotypes and the within-landrace study identified several polyclonal landraces. Our data suggest a number of hypotheses about the dynamics of diversity of cassava in Vanuatu.
| Main Authors: | , , , , , |
|---|---|
| Format: | article biblioteca |
| Language: | eng |
| Subjects: | F30 - Génétique et amélioration des plantes, F70 - Taxonomie végétale et phytogéographie, Manihot esculenta, variation génétique, multiplication végétative, reproduction sexuée, collecte de données, variété indigène, microsatellite, identification, phylogénie, génotype, http://aims.fao.org/aos/agrovoc/c_4579, http://aims.fao.org/aos/agrovoc/c_15975, http://aims.fao.org/aos/agrovoc/c_8177, http://aims.fao.org/aos/agrovoc/c_26876, http://aims.fao.org/aos/agrovoc/c_2128, http://aims.fao.org/aos/agrovoc/c_32886, http://aims.fao.org/aos/agrovoc/c_36574, http://aims.fao.org/aos/agrovoc/c_3791, http://aims.fao.org/aos/agrovoc/c_13325, http://aims.fao.org/aos/agrovoc/c_3225, http://aims.fao.org/aos/agrovoc/c_5159, |
| Online Access: | http://agritrop.cirad.fr/546849/ http://agritrop.cirad.fr/546849/1/546849.pdf |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|