Genetic and geographic structure of an insect resistant and a susceptible type of Barbarea vulgaris in western Europe
Abstract Interactions between herbivores and plants are believed to have been important drivers of biodiversity. However, to drive an initial resistance divergence into different evolutionary lineages and taxa, these interactions have probably been embedded in other processes of divergence, like all...
Published in: | Evolutionary Ecology |
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2012
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Online Access: | https://curis.ku.dk/portal/da/publications/genetic-and-geographic-structure-of-an-insect-resistant-and-a-susceptible-type-of-barbarea-vulgaris-in-western-europe(f5a0e74a-72fb-4f5c-89bf-c75ff9ccce87).html https://doi.org/10.1007/s10682-011-9515-5 |
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ftcopenhagenunip:oai:pure.atira.dk:publications/f5a0e74a-72fb-4f5c-89bf-c75ff9ccce87 2023-07-30T04:05:53+02:00 Genetic and geographic structure of an insect resistant and a susceptible type of Barbarea vulgaris in western Europe Hauser, Thure Pavlo Toneatto, Fiorello Nielsen, Jens Kvist 2012 https://curis.ku.dk/portal/da/publications/genetic-and-geographic-structure-of-an-insect-resistant-and-a-susceptible-type-of-barbarea-vulgaris-in-western-europe(f5a0e74a-72fb-4f5c-89bf-c75ff9ccce87).html https://doi.org/10.1007/s10682-011-9515-5 eng eng info:eu-repo/semantics/restrictedAccess Hauser , T P , Toneatto , F & Nielsen , J K 2012 , ' Genetic and geographic structure of an insect resistant and a susceptible type of Barbarea vulgaris in western Europe ' , Evolutionary Ecology , vol. 26 , no. 3 , pp. 611-624 . https://doi.org/10.1007/s10682-011-9515-5 /dk/atira/pure/core/keywords/FacultyOfLifeSciences/PlantDiseases/ModstandsdygtighedModSygdomme ???Modstandsdygtighed mod sygdomme??? Evolutionary divergence Plant-herbivore interactions Allopatry article 2012 ftcopenhagenunip https://doi.org/10.1007/s10682-011-9515-5 2023-07-12T22:59:55Z Abstract Interactions between herbivores and plants are believed to have been important drivers of biodiversity. However, to drive an initial resistance divergence into different evolutionary lineages and taxa, these interactions have probably been embedded in other processes of divergence, like allopatric isolation. The cruciferous plant Barbarea vulgaris ssp. arcuata occurs in Denmark in two types: one (G) is resistant to most genotypes of the flea beetle Phyllotreta nemorum, the other (P) is susceptible. The two types additionally differ in hairiness and glucosinolates, they are genetically strongly divergent, and reproduction between them is reduced. To determine whether the two plant types and their resistance polymorphisms are also present outside Denmark, and to understand how they have evolved, we analysed 33 European populations of B. vulgaris for resistance, hairiness, glucosinolates, and microsatellite markers. Most populations had traits indicative of the G type, including the already characterized Danish G populations. In contrast, only two populations outside Denmark were of the P type; one from northern Sweden and one from Estonia. Genetically, the G populations formed two genetic clusters that were strongly divergent from a genetic cluster containing P populations. A fourth genetic cluster, which contained only a single population and no Danish plants, belonged morphologically to the subspecies ssp. vulgaris. The divergence found in Denmark between a resistant G and a susceptible P type is thus part of a larger divergence in Europe. Judging from the trait correlations, genetic divergence, and partial reproductive incompatibility, the plant types must have been isolated from each other for quite some time. The two P populations outside Denmark came from the north and east, suggesting a more eastern distribution. If so, resistant and susceptible types could have diverged during the ice age and later met in Scandinavia. However, more samples from Eastern Europe are needed to clarify this. Article in Journal/Newspaper Northern Sweden University of Copenhagen: Research Evolutionary Ecology 26 3 611 624 |
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Open Polar |
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University of Copenhagen: Research |
op_collection_id |
ftcopenhagenunip |
language |
English |
topic |
/dk/atira/pure/core/keywords/FacultyOfLifeSciences/PlantDiseases/ModstandsdygtighedModSygdomme ???Modstandsdygtighed mod sygdomme??? Evolutionary divergence Plant-herbivore interactions Allopatry |
spellingShingle |
/dk/atira/pure/core/keywords/FacultyOfLifeSciences/PlantDiseases/ModstandsdygtighedModSygdomme ???Modstandsdygtighed mod sygdomme??? Evolutionary divergence Plant-herbivore interactions Allopatry Hauser, Thure Pavlo Toneatto, Fiorello Nielsen, Jens Kvist Genetic and geographic structure of an insect resistant and a susceptible type of Barbarea vulgaris in western Europe |
topic_facet |
/dk/atira/pure/core/keywords/FacultyOfLifeSciences/PlantDiseases/ModstandsdygtighedModSygdomme ???Modstandsdygtighed mod sygdomme??? Evolutionary divergence Plant-herbivore interactions Allopatry |
description |
Abstract Interactions between herbivores and plants are believed to have been important drivers of biodiversity. However, to drive an initial resistance divergence into different evolutionary lineages and taxa, these interactions have probably been embedded in other processes of divergence, like allopatric isolation. The cruciferous plant Barbarea vulgaris ssp. arcuata occurs in Denmark in two types: one (G) is resistant to most genotypes of the flea beetle Phyllotreta nemorum, the other (P) is susceptible. The two types additionally differ in hairiness and glucosinolates, they are genetically strongly divergent, and reproduction between them is reduced. To determine whether the two plant types and their resistance polymorphisms are also present outside Denmark, and to understand how they have evolved, we analysed 33 European populations of B. vulgaris for resistance, hairiness, glucosinolates, and microsatellite markers. Most populations had traits indicative of the G type, including the already characterized Danish G populations. In contrast, only two populations outside Denmark were of the P type; one from northern Sweden and one from Estonia. Genetically, the G populations formed two genetic clusters that were strongly divergent from a genetic cluster containing P populations. A fourth genetic cluster, which contained only a single population and no Danish plants, belonged morphologically to the subspecies ssp. vulgaris. The divergence found in Denmark between a resistant G and a susceptible P type is thus part of a larger divergence in Europe. Judging from the trait correlations, genetic divergence, and partial reproductive incompatibility, the plant types must have been isolated from each other for quite some time. The two P populations outside Denmark came from the north and east, suggesting a more eastern distribution. If so, resistant and susceptible types could have diverged during the ice age and later met in Scandinavia. However, more samples from Eastern Europe are needed to clarify this. |
format |
Article in Journal/Newspaper |
author |
Hauser, Thure Pavlo Toneatto, Fiorello Nielsen, Jens Kvist |
author_facet |
Hauser, Thure Pavlo Toneatto, Fiorello Nielsen, Jens Kvist |
author_sort |
Hauser, Thure Pavlo |
title |
Genetic and geographic structure of an insect resistant and a susceptible type of Barbarea vulgaris in western Europe |
title_short |
Genetic and geographic structure of an insect resistant and a susceptible type of Barbarea vulgaris in western Europe |
title_full |
Genetic and geographic structure of an insect resistant and a susceptible type of Barbarea vulgaris in western Europe |
title_fullStr |
Genetic and geographic structure of an insect resistant and a susceptible type of Barbarea vulgaris in western Europe |
title_full_unstemmed |
Genetic and geographic structure of an insect resistant and a susceptible type of Barbarea vulgaris in western Europe |
title_sort |
genetic and geographic structure of an insect resistant and a susceptible type of barbarea vulgaris in western europe |
publishDate |
2012 |
url |
https://curis.ku.dk/portal/da/publications/genetic-and-geographic-structure-of-an-insect-resistant-and-a-susceptible-type-of-barbarea-vulgaris-in-western-europe(f5a0e74a-72fb-4f5c-89bf-c75ff9ccce87).html https://doi.org/10.1007/s10682-011-9515-5 |
genre |
Northern Sweden |
genre_facet |
Northern Sweden |
op_source |
Hauser , T P , Toneatto , F & Nielsen , J K 2012 , ' Genetic and geographic structure of an insect resistant and a susceptible type of Barbarea vulgaris in western Europe ' , Evolutionary Ecology , vol. 26 , no. 3 , pp. 611-624 . https://doi.org/10.1007/s10682-011-9515-5 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1007/s10682-011-9515-5 |
container_title |
Evolutionary Ecology |
container_volume |
26 |
container_issue |
3 |
container_start_page |
611 |
op_container_end_page |
624 |
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1772818177939472384 |