Nature of taro (Colocasia esculenta (L.) Schott) genetic diversity prevalent in a Pacific Ocean island, Vanua Lava, Vanuatu
Taro (Colocasia esculenta (L.) Schott), cultivated in Vêtuboso, a village of northern Vanuatu, Melanesia, was surveyed to: (I) assess the extent of morphological and molecular variation being maintained by growers at the village level and, (2) compare this diversity with the diversity found in the crops in Vanuatu. Ethnobotanical data were combined with AFLP analysis to elucidate possible sources of variation. Folk assessment of variation is based on: (a) morphological characteristics (11 characters), (b) names and (c) classification according to habitat, uses, origin and agronomic adaptation. This 3-fold approach allowed growers to differentiate 96 morphotypes, all of which are given distinct vernacular names. AFLP finger-prints successfully differentiated all these 96 morphotypes which do not present a significant intra-clonal variation. But genetic results showed no clear groupings according to geographic origin or habitat of morphotypes and stated that the diversity found within the village was comparable with the overall diversity found in Vanuatu. Local nomenclature and stories associated with each cultivar suggested' three sources of diversity: introductions (38%), somatic mutations (15%) and sexual recombinations (48%). AFLP results confirm folk beliefs about origin at least for three pairs of mutants. The 11 so-called wild forms analysed by AFLP were suggested to be feral, escapes from domestication. A dynamic in situ conservation strategy (DISC), favouring a broadening of the national genetic base, was discussed for taro.
Main Authors: | , , , |
---|---|
Format: | article biblioteca |
Language: | eng |
Subjects: | F30 - Génétique et amélioration des plantes, Colocasia esculenta, taro, ressource génétique, biodiversité, reproduction sexuée, http://aims.fao.org/aos/agrovoc/c_1765, http://aims.fao.org/aos/agrovoc/c_14791, http://aims.fao.org/aos/agrovoc/c_3218, http://aims.fao.org/aos/agrovoc/c_33949, http://aims.fao.org/aos/agrovoc/c_26876, http://aims.fao.org/aos/agrovoc/c_5159, |
Online Access: | http://agritrop.cirad.fr/534955/ http://agritrop.cirad.fr/534955/1/document_534955.pdf |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
id |
dig-cirad-fr-534955 |
---|---|
record_format |
koha |
spelling |
dig-cirad-fr-5349552024-01-28T14:54:19Z http://agritrop.cirad.fr/534955/ http://agritrop.cirad.fr/534955/ Nature of taro (Colocasia esculenta (L.) Schott) genetic diversity prevalent in a Pacific Ocean island, Vanua Lava, Vanuatu. Caillon Sophie, Quéro Garcia José, Lescure Jean Paul, Lebot Vincent. 2006. Genetic Resources and Crop Evolution, 53 (6) : 1273-1289.https://doi.org/10.1007/s10722-005-3877-x <https://doi.org/10.1007/s10722-005-3877-x> Nature of taro (Colocasia esculenta (L.) Schott) genetic diversity prevalent in a Pacific Ocean island, Vanua Lava, Vanuatu Caillon, Sophie Quéro Garcia, José Lescure, Jean Paul Lebot, Vincent eng 2006 Genetic Resources and Crop Evolution F30 - Génétique et amélioration des plantes Colocasia esculenta taro ressource génétique biodiversité reproduction sexuée http://aims.fao.org/aos/agrovoc/c_1765 http://aims.fao.org/aos/agrovoc/c_14791 http://aims.fao.org/aos/agrovoc/c_3218 http://aims.fao.org/aos/agrovoc/c_33949 http://aims.fao.org/aos/agrovoc/c_26876 Vanuatu http://aims.fao.org/aos/agrovoc/c_5159 Taro (Colocasia esculenta (L.) Schott), cultivated in Vêtuboso, a village of northern Vanuatu, Melanesia, was surveyed to: (I) assess the extent of morphological and molecular variation being maintained by growers at the village level and, (2) compare this diversity with the diversity found in the crops in Vanuatu. Ethnobotanical data were combined with AFLP analysis to elucidate possible sources of variation. Folk assessment of variation is based on: (a) morphological characteristics (11 characters), (b) names and (c) classification according to habitat, uses, origin and agronomic adaptation. This 3-fold approach allowed growers to differentiate 96 morphotypes, all of which are given distinct vernacular names. AFLP finger-prints successfully differentiated all these 96 morphotypes which do not present a significant intra-clonal variation. But genetic results showed no clear groupings according to geographic origin or habitat of morphotypes and stated that the diversity found within the village was comparable with the overall diversity found in Vanuatu. Local nomenclature and stories associated with each cultivar suggested' three sources of diversity: introductions (38%), somatic mutations (15%) and sexual recombinations (48%). AFLP results confirm folk beliefs about origin at least for three pairs of mutants. The 11 so-called wild forms analysed by AFLP were suggested to be feral, escapes from domestication. A dynamic in situ conservation strategy (DISC), favouring a broadening of the national genetic base, was discussed for taro. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/534955/1/document_534955.pdf application/pdf Cirad license info:eu-repo/semantics/restrictedAccess https://agritrop.cirad.fr/mention_legale.html https://doi.org/10.1007/s10722-005-3877-x 10.1007/s10722-005-3877-x info:eu-repo/semantics/altIdentifier/doi/10.1007/s10722-005-3877-x info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1007/s10722-005-3877-x |
institution |
CIRAD FR |
collection |
DSpace |
country |
Francia |
countrycode |
FR |
component |
Bibliográfico |
access |
En linea |
databasecode |
dig-cirad-fr |
tag |
biblioteca |
region |
Europa del Oeste |
libraryname |
Biblioteca del CIRAD Francia |
language |
eng |
topic |
F30 - Génétique et amélioration des plantes Colocasia esculenta taro ressource génétique biodiversité reproduction sexuée http://aims.fao.org/aos/agrovoc/c_1765 http://aims.fao.org/aos/agrovoc/c_14791 http://aims.fao.org/aos/agrovoc/c_3218 http://aims.fao.org/aos/agrovoc/c_33949 http://aims.fao.org/aos/agrovoc/c_26876 http://aims.fao.org/aos/agrovoc/c_5159 F30 - Génétique et amélioration des plantes Colocasia esculenta taro ressource génétique biodiversité reproduction sexuée http://aims.fao.org/aos/agrovoc/c_1765 http://aims.fao.org/aos/agrovoc/c_14791 http://aims.fao.org/aos/agrovoc/c_3218 http://aims.fao.org/aos/agrovoc/c_33949 http://aims.fao.org/aos/agrovoc/c_26876 http://aims.fao.org/aos/agrovoc/c_5159 |
spellingShingle |
F30 - Génétique et amélioration des plantes Colocasia esculenta taro ressource génétique biodiversité reproduction sexuée http://aims.fao.org/aos/agrovoc/c_1765 http://aims.fao.org/aos/agrovoc/c_14791 http://aims.fao.org/aos/agrovoc/c_3218 http://aims.fao.org/aos/agrovoc/c_33949 http://aims.fao.org/aos/agrovoc/c_26876 http://aims.fao.org/aos/agrovoc/c_5159 F30 - Génétique et amélioration des plantes Colocasia esculenta taro ressource génétique biodiversité reproduction sexuée http://aims.fao.org/aos/agrovoc/c_1765 http://aims.fao.org/aos/agrovoc/c_14791 http://aims.fao.org/aos/agrovoc/c_3218 http://aims.fao.org/aos/agrovoc/c_33949 http://aims.fao.org/aos/agrovoc/c_26876 http://aims.fao.org/aos/agrovoc/c_5159 Caillon, Sophie Quéro Garcia, José Lescure, Jean Paul Lebot, Vincent Nature of taro (Colocasia esculenta (L.) Schott) genetic diversity prevalent in a Pacific Ocean island, Vanua Lava, Vanuatu |
description |
Taro (Colocasia esculenta (L.) Schott), cultivated in Vêtuboso, a village of northern Vanuatu, Melanesia, was surveyed to: (I) assess the extent of morphological and molecular variation being maintained by growers at the village level and, (2) compare this diversity with the diversity found in the crops in Vanuatu. Ethnobotanical data were combined with AFLP analysis to elucidate possible sources of variation. Folk assessment of variation is based on: (a) morphological characteristics (11 characters), (b) names and (c) classification according to habitat, uses, origin and agronomic adaptation. This 3-fold approach allowed growers to differentiate 96 morphotypes, all of which are given distinct vernacular names. AFLP finger-prints successfully differentiated all these 96 morphotypes which do not present a significant intra-clonal variation. But genetic results showed no clear groupings according to geographic origin or habitat of morphotypes and stated that the diversity found within the village was comparable with the overall diversity found in Vanuatu. Local nomenclature and stories associated with each cultivar suggested' three sources of diversity: introductions (38%), somatic mutations (15%) and sexual recombinations (48%). AFLP results confirm folk beliefs about origin at least for three pairs of mutants. The 11 so-called wild forms analysed by AFLP were suggested to be feral, escapes from domestication. A dynamic in situ conservation strategy (DISC), favouring a broadening of the national genetic base, was discussed for taro. |
format |
article |
topic_facet |
F30 - Génétique et amélioration des plantes Colocasia esculenta taro ressource génétique biodiversité reproduction sexuée http://aims.fao.org/aos/agrovoc/c_1765 http://aims.fao.org/aos/agrovoc/c_14791 http://aims.fao.org/aos/agrovoc/c_3218 http://aims.fao.org/aos/agrovoc/c_33949 http://aims.fao.org/aos/agrovoc/c_26876 http://aims.fao.org/aos/agrovoc/c_5159 |
author |
Caillon, Sophie Quéro Garcia, José Lescure, Jean Paul Lebot, Vincent |
author_facet |
Caillon, Sophie Quéro Garcia, José Lescure, Jean Paul Lebot, Vincent |
author_sort |
Caillon, Sophie |
title |
Nature of taro (Colocasia esculenta (L.) Schott) genetic diversity prevalent in a Pacific Ocean island, Vanua Lava, Vanuatu |
title_short |
Nature of taro (Colocasia esculenta (L.) Schott) genetic diversity prevalent in a Pacific Ocean island, Vanua Lava, Vanuatu |
title_full |
Nature of taro (Colocasia esculenta (L.) Schott) genetic diversity prevalent in a Pacific Ocean island, Vanua Lava, Vanuatu |
title_fullStr |
Nature of taro (Colocasia esculenta (L.) Schott) genetic diversity prevalent in a Pacific Ocean island, Vanua Lava, Vanuatu |
title_full_unstemmed |
Nature of taro (Colocasia esculenta (L.) Schott) genetic diversity prevalent in a Pacific Ocean island, Vanua Lava, Vanuatu |
title_sort |
nature of taro (colocasia esculenta (l.) schott) genetic diversity prevalent in a pacific ocean island, vanua lava, vanuatu |
url |
http://agritrop.cirad.fr/534955/ http://agritrop.cirad.fr/534955/1/document_534955.pdf |
work_keys_str_mv |
AT caillonsophie natureoftarocolocasiaesculentalschottgeneticdiversityprevalentinapacificoceanislandvanualavavanuatu AT querogarciajose natureoftarocolocasiaesculentalschottgeneticdiversityprevalentinapacificoceanislandvanualavavanuatu AT lescurejeanpaul natureoftarocolocasiaesculentalschottgeneticdiversityprevalentinapacificoceanislandvanualavavanuatu AT lebotvincent natureoftarocolocasiaesculentalschottgeneticdiversityprevalentinapacificoceanislandvanualavavanuatu |
_version_ |
1792496566969303040 |