Genetic diversity and differentiation among insular honey bee populations in the southwest Indian Ocean likely reflect old geographical isolation and modern introductions
With globalization the Western honey bee has become a nearly cosmopolitan species, but it was originally restricted to the Old World. This renowned model of biodiversity has diverged into five evolutionary lineages and several geographic “subspecies.” If Apis mellifera unicolor is indubitably an African subspecies endemic to Madagascar, its relationship with honey bees from three archipelagos in the southwest Indian Ocean (SWIO) hotspot of biodiversity is misunderstood. We compared recent mtDNA diversity data to an original characterization of the nuclear diversity from honey bees in the Mascarenes and Comoros archipelagos, using 14 microsatellites, but also additional mtDNA tRNALeu-cox2 analysis. Our sampling offers the most comprehensive dataset for the SWIO populations with a total of 3,270 colonies from 10 islands compared with 855 samples from Madagascar, 113 from Africa, and 138 from Europe. Comprehensive mitochondrial screening confirmed that honey bees from La Réunion, Mauritius, and Comoros archipelagos are mainly of African origin (88.1% out of 2,746 colonies) and that coexistence with European lineages occurs only in the Mascarenes. PCA, Bayesian, and genetic differentiation analysis showed that African colonies are not significantly distinct on each island, but have diversified among islands and archipelagos. FST levels progressively decreased in significance from European and African continental populations, to SWIO insular and continental populations, and finally among islands from the same archipelago. Among African populations, Madagascar shared a nuclear background with and was most closely related to SWIO island populations (except Rodrigues). Only Mauritius Island presented clear cytoplasmic disequilibrium and genetic structure characteristic of an admixed population undergoing hybridization, in this case, between A. m. unicolor and A. m. ligustica, A. m. carnica and A. m. mellifera-like individuals. Finally, global genetic clustering analysis helped to better depict the colonization and introduction pattern of honey bee populations in these archipelagos.
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Subjects: | L10 - Génétique et amélioration des animaux, L60 - Taxonomie et géographie animales, Apis mellifera, génétique des populations, marqueur génétique, mitochondrie, variation génétique, distribution géographique, http://aims.fao.org/aos/agrovoc/c_534, http://aims.fao.org/aos/agrovoc/c_34326, http://aims.fao.org/aos/agrovoc/c_24030, http://aims.fao.org/aos/agrovoc/c_4869, http://aims.fao.org/aos/agrovoc/c_15975, http://aims.fao.org/aos/agrovoc/c_5083, http://aims.fao.org/aos/agrovoc/c_4510, http://aims.fao.org/aos/agrovoc/c_1790, http://aims.fao.org/aos/agrovoc/c_6543, http://aims.fao.org/aos/agrovoc/c_4662, http://aims.fao.org/aos/agrovoc/c_4665, http://aims.fao.org/aos/agrovoc/c_3081, |
Online Access: | http://agritrop.cirad.fr/586490/ http://agritrop.cirad.fr/586490/1/journal.pone.0189234.pdf |
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L10 - Génétique et amélioration des animaux L60 - Taxonomie et géographie animales Apis mellifera génétique des populations marqueur génétique mitochondrie variation génétique distribution géographique http://aims.fao.org/aos/agrovoc/c_534 http://aims.fao.org/aos/agrovoc/c_34326 http://aims.fao.org/aos/agrovoc/c_24030 http://aims.fao.org/aos/agrovoc/c_4869 http://aims.fao.org/aos/agrovoc/c_15975 http://aims.fao.org/aos/agrovoc/c_5083 http://aims.fao.org/aos/agrovoc/c_4510 http://aims.fao.org/aos/agrovoc/c_1790 http://aims.fao.org/aos/agrovoc/c_6543 http://aims.fao.org/aos/agrovoc/c_4662 http://aims.fao.org/aos/agrovoc/c_4665 http://aims.fao.org/aos/agrovoc/c_3081 L10 - Génétique et amélioration des animaux L60 - Taxonomie et géographie animales Apis mellifera génétique des populations marqueur génétique mitochondrie variation génétique distribution géographique http://aims.fao.org/aos/agrovoc/c_534 http://aims.fao.org/aos/agrovoc/c_34326 http://aims.fao.org/aos/agrovoc/c_24030 http://aims.fao.org/aos/agrovoc/c_4869 http://aims.fao.org/aos/agrovoc/c_15975 http://aims.fao.org/aos/agrovoc/c_5083 http://aims.fao.org/aos/agrovoc/c_4510 http://aims.fao.org/aos/agrovoc/c_1790 http://aims.fao.org/aos/agrovoc/c_6543 http://aims.fao.org/aos/agrovoc/c_4662 http://aims.fao.org/aos/agrovoc/c_4665 http://aims.fao.org/aos/agrovoc/c_3081 |
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L10 - Génétique et amélioration des animaux L60 - Taxonomie et géographie animales Apis mellifera génétique des populations marqueur génétique mitochondrie variation génétique distribution géographique http://aims.fao.org/aos/agrovoc/c_534 http://aims.fao.org/aos/agrovoc/c_34326 http://aims.fao.org/aos/agrovoc/c_24030 http://aims.fao.org/aos/agrovoc/c_4869 http://aims.fao.org/aos/agrovoc/c_15975 http://aims.fao.org/aos/agrovoc/c_5083 http://aims.fao.org/aos/agrovoc/c_4510 http://aims.fao.org/aos/agrovoc/c_1790 http://aims.fao.org/aos/agrovoc/c_6543 http://aims.fao.org/aos/agrovoc/c_4662 http://aims.fao.org/aos/agrovoc/c_4665 http://aims.fao.org/aos/agrovoc/c_3081 L10 - Génétique et amélioration des animaux L60 - Taxonomie et géographie animales Apis mellifera génétique des populations marqueur génétique mitochondrie variation génétique distribution géographique http://aims.fao.org/aos/agrovoc/c_534 http://aims.fao.org/aos/agrovoc/c_34326 http://aims.fao.org/aos/agrovoc/c_24030 http://aims.fao.org/aos/agrovoc/c_4869 http://aims.fao.org/aos/agrovoc/c_15975 http://aims.fao.org/aos/agrovoc/c_5083 http://aims.fao.org/aos/agrovoc/c_4510 http://aims.fao.org/aos/agrovoc/c_1790 http://aims.fao.org/aos/agrovoc/c_6543 http://aims.fao.org/aos/agrovoc/c_4662 http://aims.fao.org/aos/agrovoc/c_4665 http://aims.fao.org/aos/agrovoc/c_3081 Techer, Maéva Angélique Clémencet, Johanna Simiand, Christophe Turpin, Patrick Garnery, Lionel Reynaud, Bernard Delatte, Hélène Genetic diversity and differentiation among insular honey bee populations in the southwest Indian Ocean likely reflect old geographical isolation and modern introductions |
description |
With globalization the Western honey bee has become a nearly cosmopolitan species, but it was originally restricted to the Old World. This renowned model of biodiversity has diverged into five evolutionary lineages and several geographic “subspecies.” If Apis mellifera unicolor is indubitably an African subspecies endemic to Madagascar, its relationship with honey bees from three archipelagos in the southwest Indian Ocean (SWIO) hotspot of biodiversity is misunderstood. We compared recent mtDNA diversity data to an original characterization of the nuclear diversity from honey bees in the Mascarenes and Comoros archipelagos, using 14 microsatellites, but also additional mtDNA tRNALeu-cox2 analysis. Our sampling offers the most comprehensive dataset for the SWIO populations with a total of 3,270 colonies from 10 islands compared with 855 samples from Madagascar, 113 from Africa, and 138 from Europe. Comprehensive mitochondrial screening confirmed that honey bees from La Réunion, Mauritius, and Comoros archipelagos are mainly of African origin (88.1% out of 2,746 colonies) and that coexistence with European lineages occurs only in the Mascarenes. PCA, Bayesian, and genetic differentiation analysis showed that African colonies are not significantly distinct on each island, but have diversified among islands and archipelagos. FST levels progressively decreased in significance from European and African continental populations, to SWIO insular and continental populations, and finally among islands from the same archipelago. Among African populations, Madagascar shared a nuclear background with and was most closely related to SWIO island populations (except Rodrigues). Only Mauritius Island presented clear cytoplasmic disequilibrium and genetic structure characteristic of an admixed population undergoing hybridization, in this case, between A. m. unicolor and A. m. ligustica, A. m. carnica and A. m. mellifera-like individuals. Finally, global genetic clustering analysis helped to better depict the colonization and introduction pattern of honey bee populations in these archipelagos. |
format |
article |
topic_facet |
L10 - Génétique et amélioration des animaux L60 - Taxonomie et géographie animales Apis mellifera génétique des populations marqueur génétique mitochondrie variation génétique distribution géographique http://aims.fao.org/aos/agrovoc/c_534 http://aims.fao.org/aos/agrovoc/c_34326 http://aims.fao.org/aos/agrovoc/c_24030 http://aims.fao.org/aos/agrovoc/c_4869 http://aims.fao.org/aos/agrovoc/c_15975 http://aims.fao.org/aos/agrovoc/c_5083 http://aims.fao.org/aos/agrovoc/c_4510 http://aims.fao.org/aos/agrovoc/c_1790 http://aims.fao.org/aos/agrovoc/c_6543 http://aims.fao.org/aos/agrovoc/c_4662 http://aims.fao.org/aos/agrovoc/c_4665 http://aims.fao.org/aos/agrovoc/c_3081 |
author |
Techer, Maéva Angélique Clémencet, Johanna Simiand, Christophe Turpin, Patrick Garnery, Lionel Reynaud, Bernard Delatte, Hélène |
author_facet |
Techer, Maéva Angélique Clémencet, Johanna Simiand, Christophe Turpin, Patrick Garnery, Lionel Reynaud, Bernard Delatte, Hélène |
author_sort |
Techer, Maéva Angélique |
title |
Genetic diversity and differentiation among insular honey bee populations in the southwest Indian Ocean likely reflect old geographical isolation and modern introductions |
title_short |
Genetic diversity and differentiation among insular honey bee populations in the southwest Indian Ocean likely reflect old geographical isolation and modern introductions |
title_full |
Genetic diversity and differentiation among insular honey bee populations in the southwest Indian Ocean likely reflect old geographical isolation and modern introductions |
title_fullStr |
Genetic diversity and differentiation among insular honey bee populations in the southwest Indian Ocean likely reflect old geographical isolation and modern introductions |
title_full_unstemmed |
Genetic diversity and differentiation among insular honey bee populations in the southwest Indian Ocean likely reflect old geographical isolation and modern introductions |
title_sort |
genetic diversity and differentiation among insular honey bee populations in the southwest indian ocean likely reflect old geographical isolation and modern introductions |
url |
http://agritrop.cirad.fr/586490/ http://agritrop.cirad.fr/586490/1/journal.pone.0189234.pdf |
work_keys_str_mv |
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dig-cirad-fr-5864902024-01-29T00:43:32Z http://agritrop.cirad.fr/586490/ http://agritrop.cirad.fr/586490/ Genetic diversity and differentiation among insular honey bee populations in the southwest Indian Ocean likely reflect old geographical isolation and modern introductions. Techer Maéva Angélique, Clémencet Johanna, Simiand Christophe, Turpin Patrick, Garnery Lionel, Reynaud Bernard, Delatte Hélène. 2017. PloS One, 12 (12):e0189234, 26 p.https://doi.org/10.1371/journal.pone.0189234 <https://doi.org/10.1371/journal.pone.0189234> Genetic diversity and differentiation among insular honey bee populations in the southwest Indian Ocean likely reflect old geographical isolation and modern introductions Techer, Maéva Angélique Clémencet, Johanna Simiand, Christophe Turpin, Patrick Garnery, Lionel Reynaud, Bernard Delatte, Hélène eng 2017 PloS One L10 - Génétique et amélioration des animaux L60 - Taxonomie et géographie animales Apis mellifera génétique des populations marqueur génétique mitochondrie variation génétique distribution géographique http://aims.fao.org/aos/agrovoc/c_534 http://aims.fao.org/aos/agrovoc/c_34326 http://aims.fao.org/aos/agrovoc/c_24030 http://aims.fao.org/aos/agrovoc/c_4869 http://aims.fao.org/aos/agrovoc/c_15975 http://aims.fao.org/aos/agrovoc/c_5083 Madagascar Comores La Réunion Maurice Mayotte France http://aims.fao.org/aos/agrovoc/c_4510 http://aims.fao.org/aos/agrovoc/c_1790 http://aims.fao.org/aos/agrovoc/c_6543 http://aims.fao.org/aos/agrovoc/c_4662 http://aims.fao.org/aos/agrovoc/c_4665 http://aims.fao.org/aos/agrovoc/c_3081 With globalization the Western honey bee has become a nearly cosmopolitan species, but it was originally restricted to the Old World. This renowned model of biodiversity has diverged into five evolutionary lineages and several geographic “subspecies.” If Apis mellifera unicolor is indubitably an African subspecies endemic to Madagascar, its relationship with honey bees from three archipelagos in the southwest Indian Ocean (SWIO) hotspot of biodiversity is misunderstood. We compared recent mtDNA diversity data to an original characterization of the nuclear diversity from honey bees in the Mascarenes and Comoros archipelagos, using 14 microsatellites, but also additional mtDNA tRNALeu-cox2 analysis. Our sampling offers the most comprehensive dataset for the SWIO populations with a total of 3,270 colonies from 10 islands compared with 855 samples from Madagascar, 113 from Africa, and 138 from Europe. Comprehensive mitochondrial screening confirmed that honey bees from La Réunion, Mauritius, and Comoros archipelagos are mainly of African origin (88.1% out of 2,746 colonies) and that coexistence with European lineages occurs only in the Mascarenes. PCA, Bayesian, and genetic differentiation analysis showed that African colonies are not significantly distinct on each island, but have diversified among islands and archipelagos. FST levels progressively decreased in significance from European and African continental populations, to SWIO insular and continental populations, and finally among islands from the same archipelago. Among African populations, Madagascar shared a nuclear background with and was most closely related to SWIO island populations (except Rodrigues). Only Mauritius Island presented clear cytoplasmic disequilibrium and genetic structure characteristic of an admixed population undergoing hybridization, in this case, between A. m. unicolor and A. m. ligustica, A. m. carnica and A. m. mellifera-like individuals. Finally, global genetic clustering analysis helped to better depict the colonization and introduction pattern of honey bee populations in these archipelagos. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/586490/1/journal.pone.0189234.pdf text Cirad license info:eu-repo/semantics/openAccess https://agritrop.cirad.fr/mention_legale.html https://doi.org/10.1371/journal.pone.0189234 10.1371/journal.pone.0189234 info:eu-repo/semantics/altIdentifier/doi/10.1371/journal.pone.0189234 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1371/journal.pone.0189234 |