Molecular, quantitative and abiotic variables for the delineation of evolutionary significant units : case of sandalwood (Santalum austrocaledonicum Vieillard) in New Caledonia
Various approaches have been developed to define conservation units for plant and animal species. In this study we combined nuclear microsatellites (from a previous published study) and chloroplast microsatellites (assessed in the present study), leaf and seed morphology traits and abiotic variables (climate and soil) to define evolutionary significant units (ESU) of Santalum austrocaledonicum, a tree species growing in New Caledonia. Results for chloroplast microsatellites showed that the total population heterozygosity was-high, (H cp = 0.84) but varied between islands. Differentiation was strong in the total population (F stcp = 0.66) but also within the main island Grande Terre (F stcp = 0.73) and within Iles Loyauté (F stcp = 0.52), highlighting a limited gene flow between populations. These results confirmed those obtained with nuclear microsatellites. The cluster analysis on molecular markers discriminated two main groups constituted by the populations of Grande Terre and the populations of Iles Loyauté. A principal component analysis of leaf and seed morphology traits singled out the populations of Iles Loyauté and the western populations of Grande Terre. Quantitative genetic analyses showed that the variation between populations was under genetic control (broad sense heritability close to 80%). A high correlation between rainfall and morphological traits suggested an impact of climate on this variation. The integration of these results allows to define two ESUs, one corresponding to Grande Terre and Ile des Pins and the other the Iles Loyauté archipelago. This study stresses the need to restore some populations of Grande Terre that are currently threatened by their small size.
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Subjects: | F30 - Génétique et amélioration des plantes, F70 - Taxonomie végétale et phytogéographie, Santalum, variation génétique, microsatellite, marqueur génétique, dynamique des populations, anatomie végétale, facteur du milieu, ressource génétique, restauration couverture végétale, http://aims.fao.org/aos/agrovoc/c_23973, http://aims.fao.org/aos/agrovoc/c_15975, http://aims.fao.org/aos/agrovoc/c_36574, http://aims.fao.org/aos/agrovoc/c_24030, http://aims.fao.org/aos/agrovoc/c_6111, http://aims.fao.org/aos/agrovoc/c_5954, http://aims.fao.org/aos/agrovoc/c_2594, http://aims.fao.org/aos/agrovoc/c_3218, http://aims.fao.org/aos/agrovoc/c_26815, http://aims.fao.org/aos/agrovoc/c_5155, http://aims.fao.org/aos/agrovoc/c_3081, |
Online Access: | http://agritrop.cirad.fr/536675/ http://agritrop.cirad.fr/536675/1/536675.pdf |
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dig-cirad-fr-5366752024-01-28T15:05:16Z http://agritrop.cirad.fr/536675/ http://agritrop.cirad.fr/536675/ Molecular, quantitative and abiotic variables for the delineation of evolutionary significant units : case of sandalwood (Santalum austrocaledonicum Vieillard) in New Caledonia. Bottin Lorraine, Tassin Jacques, Nasi Robert, Bouvet Jean-Marc. 2007. Conservation Genetics, 8 : 99-109.https://doi.org/10.1007/s10592-006-9152-7 <https://doi.org/10.1007/s10592-006-9152-7> Molecular, quantitative and abiotic variables for the delineation of evolutionary significant units : case of sandalwood (Santalum austrocaledonicum Vieillard) in New Caledonia Bottin, Lorraine Tassin, Jacques Nasi, Robert Bouvet, Jean-Marc eng 2007 Conservation Genetics F30 - Génétique et amélioration des plantes F70 - Taxonomie végétale et phytogéographie Santalum variation génétique microsatellite marqueur génétique dynamique des populations anatomie végétale facteur du milieu ressource génétique restauration couverture végétale http://aims.fao.org/aos/agrovoc/c_23973 http://aims.fao.org/aos/agrovoc/c_15975 http://aims.fao.org/aos/agrovoc/c_36574 http://aims.fao.org/aos/agrovoc/c_24030 http://aims.fao.org/aos/agrovoc/c_6111 http://aims.fao.org/aos/agrovoc/c_5954 http://aims.fao.org/aos/agrovoc/c_2594 http://aims.fao.org/aos/agrovoc/c_3218 http://aims.fao.org/aos/agrovoc/c_26815 Nouvelle-Calédonie France http://aims.fao.org/aos/agrovoc/c_5155 http://aims.fao.org/aos/agrovoc/c_3081 Various approaches have been developed to define conservation units for plant and animal species. In this study we combined nuclear microsatellites (from a previous published study) and chloroplast microsatellites (assessed in the present study), leaf and seed morphology traits and abiotic variables (climate and soil) to define evolutionary significant units (ESU) of Santalum austrocaledonicum, a tree species growing in New Caledonia. Results for chloroplast microsatellites showed that the total population heterozygosity was-high, (H cp = 0.84) but varied between islands. Differentiation was strong in the total population (F stcp = 0.66) but also within the main island Grande Terre (F stcp = 0.73) and within Iles Loyauté (F stcp = 0.52), highlighting a limited gene flow between populations. These results confirmed those obtained with nuclear microsatellites. The cluster analysis on molecular markers discriminated two main groups constituted by the populations of Grande Terre and the populations of Iles Loyauté. A principal component analysis of leaf and seed morphology traits singled out the populations of Iles Loyauté and the western populations of Grande Terre. Quantitative genetic analyses showed that the variation between populations was under genetic control (broad sense heritability close to 80%). A high correlation between rainfall and morphological traits suggested an impact of climate on this variation. The integration of these results allows to define two ESUs, one corresponding to Grande Terre and Ile des Pins and the other the Iles Loyauté archipelago. This study stresses the need to restore some populations of Grande Terre that are currently threatened by their small size. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/536675/1/536675.pdf text Cirad license info:eu-repo/semantics/restrictedAccess https://agritrop.cirad.fr/mention_legale.html https://doi.org/10.1007/s10592-006-9152-7 10.1007/s10592-006-9152-7 http://catalogue-bibliotheques.cirad.fr/cgi-bin/koha/opac-detail.pl?biblionumber=195187 info:eu-repo/semantics/altIdentifier/doi/10.1007/s10592-006-9152-7 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1007/s10592-006-9152-7 |
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F30 - Génétique et amélioration des plantes F70 - Taxonomie végétale et phytogéographie Santalum variation génétique microsatellite marqueur génétique dynamique des populations anatomie végétale facteur du milieu ressource génétique restauration couverture végétale http://aims.fao.org/aos/agrovoc/c_23973 http://aims.fao.org/aos/agrovoc/c_15975 http://aims.fao.org/aos/agrovoc/c_36574 http://aims.fao.org/aos/agrovoc/c_24030 http://aims.fao.org/aos/agrovoc/c_6111 http://aims.fao.org/aos/agrovoc/c_5954 http://aims.fao.org/aos/agrovoc/c_2594 http://aims.fao.org/aos/agrovoc/c_3218 http://aims.fao.org/aos/agrovoc/c_26815 http://aims.fao.org/aos/agrovoc/c_5155 http://aims.fao.org/aos/agrovoc/c_3081 F30 - Génétique et amélioration des plantes F70 - Taxonomie végétale et phytogéographie Santalum variation génétique microsatellite marqueur génétique dynamique des populations anatomie végétale facteur du milieu ressource génétique restauration couverture végétale http://aims.fao.org/aos/agrovoc/c_23973 http://aims.fao.org/aos/agrovoc/c_15975 http://aims.fao.org/aos/agrovoc/c_36574 http://aims.fao.org/aos/agrovoc/c_24030 http://aims.fao.org/aos/agrovoc/c_6111 http://aims.fao.org/aos/agrovoc/c_5954 http://aims.fao.org/aos/agrovoc/c_2594 http://aims.fao.org/aos/agrovoc/c_3218 http://aims.fao.org/aos/agrovoc/c_26815 http://aims.fao.org/aos/agrovoc/c_5155 http://aims.fao.org/aos/agrovoc/c_3081 |
spellingShingle |
F30 - Génétique et amélioration des plantes F70 - Taxonomie végétale et phytogéographie Santalum variation génétique microsatellite marqueur génétique dynamique des populations anatomie végétale facteur du milieu ressource génétique restauration couverture végétale http://aims.fao.org/aos/agrovoc/c_23973 http://aims.fao.org/aos/agrovoc/c_15975 http://aims.fao.org/aos/agrovoc/c_36574 http://aims.fao.org/aos/agrovoc/c_24030 http://aims.fao.org/aos/agrovoc/c_6111 http://aims.fao.org/aos/agrovoc/c_5954 http://aims.fao.org/aos/agrovoc/c_2594 http://aims.fao.org/aos/agrovoc/c_3218 http://aims.fao.org/aos/agrovoc/c_26815 http://aims.fao.org/aos/agrovoc/c_5155 http://aims.fao.org/aos/agrovoc/c_3081 F30 - Génétique et amélioration des plantes F70 - Taxonomie végétale et phytogéographie Santalum variation génétique microsatellite marqueur génétique dynamique des populations anatomie végétale facteur du milieu ressource génétique restauration couverture végétale http://aims.fao.org/aos/agrovoc/c_23973 http://aims.fao.org/aos/agrovoc/c_15975 http://aims.fao.org/aos/agrovoc/c_36574 http://aims.fao.org/aos/agrovoc/c_24030 http://aims.fao.org/aos/agrovoc/c_6111 http://aims.fao.org/aos/agrovoc/c_5954 http://aims.fao.org/aos/agrovoc/c_2594 http://aims.fao.org/aos/agrovoc/c_3218 http://aims.fao.org/aos/agrovoc/c_26815 http://aims.fao.org/aos/agrovoc/c_5155 http://aims.fao.org/aos/agrovoc/c_3081 Bottin, Lorraine Tassin, Jacques Nasi, Robert Bouvet, Jean-Marc Molecular, quantitative and abiotic variables for the delineation of evolutionary significant units : case of sandalwood (Santalum austrocaledonicum Vieillard) in New Caledonia |
description |
Various approaches have been developed to define conservation units for plant and animal species. In this study we combined nuclear microsatellites (from a previous published study) and chloroplast microsatellites (assessed in the present study), leaf and seed morphology traits and abiotic variables (climate and soil) to define evolutionary significant units (ESU) of Santalum austrocaledonicum, a tree species growing in New Caledonia. Results for chloroplast microsatellites showed that the total population heterozygosity was-high, (H cp = 0.84) but varied between islands. Differentiation was strong in the total population (F stcp = 0.66) but also within the main island Grande Terre (F stcp = 0.73) and within Iles Loyauté (F stcp = 0.52), highlighting a limited gene flow between populations. These results confirmed those obtained with nuclear microsatellites. The cluster analysis on molecular markers discriminated two main groups constituted by the populations of Grande Terre and the populations of Iles Loyauté. A principal component analysis of leaf and seed morphology traits singled out the populations of Iles Loyauté and the western populations of Grande Terre. Quantitative genetic analyses showed that the variation between populations was under genetic control (broad sense heritability close to 80%). A high correlation between rainfall and morphological traits suggested an impact of climate on this variation. The integration of these results allows to define two ESUs, one corresponding to Grande Terre and Ile des Pins and the other the Iles Loyauté archipelago. This study stresses the need to restore some populations of Grande Terre that are currently threatened by their small size. |
format |
article |
topic_facet |
F30 - Génétique et amélioration des plantes F70 - Taxonomie végétale et phytogéographie Santalum variation génétique microsatellite marqueur génétique dynamique des populations anatomie végétale facteur du milieu ressource génétique restauration couverture végétale http://aims.fao.org/aos/agrovoc/c_23973 http://aims.fao.org/aos/agrovoc/c_15975 http://aims.fao.org/aos/agrovoc/c_36574 http://aims.fao.org/aos/agrovoc/c_24030 http://aims.fao.org/aos/agrovoc/c_6111 http://aims.fao.org/aos/agrovoc/c_5954 http://aims.fao.org/aos/agrovoc/c_2594 http://aims.fao.org/aos/agrovoc/c_3218 http://aims.fao.org/aos/agrovoc/c_26815 http://aims.fao.org/aos/agrovoc/c_5155 http://aims.fao.org/aos/agrovoc/c_3081 |
author |
Bottin, Lorraine Tassin, Jacques Nasi, Robert Bouvet, Jean-Marc |
author_facet |
Bottin, Lorraine Tassin, Jacques Nasi, Robert Bouvet, Jean-Marc |
author_sort |
Bottin, Lorraine |
title |
Molecular, quantitative and abiotic variables for the delineation of evolutionary significant units : case of sandalwood (Santalum austrocaledonicum Vieillard) in New Caledonia |
title_short |
Molecular, quantitative and abiotic variables for the delineation of evolutionary significant units : case of sandalwood (Santalum austrocaledonicum Vieillard) in New Caledonia |
title_full |
Molecular, quantitative and abiotic variables for the delineation of evolutionary significant units : case of sandalwood (Santalum austrocaledonicum Vieillard) in New Caledonia |
title_fullStr |
Molecular, quantitative and abiotic variables for the delineation of evolutionary significant units : case of sandalwood (Santalum austrocaledonicum Vieillard) in New Caledonia |
title_full_unstemmed |
Molecular, quantitative and abiotic variables for the delineation of evolutionary significant units : case of sandalwood (Santalum austrocaledonicum Vieillard) in New Caledonia |
title_sort |
molecular, quantitative and abiotic variables for the delineation of evolutionary significant units : case of sandalwood (santalum austrocaledonicum vieillard) in new caledonia |
url |
http://agritrop.cirad.fr/536675/ http://agritrop.cirad.fr/536675/1/536675.pdf |
work_keys_str_mv |
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_version_ |
1792496622227161088 |