A heritable glucosinolate polymorphism within natural populations of Barbarea vulgaris

Leur, van H Hanneke; Raaijmakers, Ciska E.; Dam, Van

doi:10.1016/j.phytochem.2006.04.021

Cited by 63 publications

(45 citation statements)

References 45 publications

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“…However, many plant species defy the simple evolutionary prediction that the most effective antiherbivore defence should spread to fixation in populations. Instead, we observe significant variation in heritable secondary metabolite profiles both within and between populations (Berenbaum et al 1986;Harvey et al 2005;Mithen et al 1995b;Moyes et al 2000;Richards and Fletcher 2002;van Leur et al 2006). This raises two important questions.…”

Section: Introductionmentioning

confidence: 56%

Glucosinolate polymorphism in wild cabbage (Brassica oleracea) influences the structure of herbivore communities

2009

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Natural plant populations often show substantial heritable variation in chemical structure of secondary metabolites. Despite a great deal of evidence from laboratory studies that these chemicals influence herbivore behaviour and life history, there exists little evidence for the structuring of natural herbivore communities according to plant chemical profiles. Brassica oleracea (Brassicaceae) produces aliphatic glucosinolates, which break down into toxins when leaf tissue is damaged. Structural diversity in these glucosinolates is heritable, and varies considerably at two ecological scales in the UK: both within and between populations. We surveyed herbivore attack on plants producing different glucosinolates, using 12 natural B. oleracea populations. In contrast to the results of previous studies in this system, which suffered low statistical power, we found significant differential responses of herbivore species to heritable glucosinolates, both within and between plant populations. We found significant correlations between herbivore infestation rates and the presence or absence of two heritable glucosinolates: sinigrin and progoitrin. There was variation between herbivore species in the direction of response, the ecological scale at which responses were identified, and the correlations for some herbivore species changed at different times of the year. We conclude that variation in plant secondary metabolites can structure the community of herbivores that attack them, and propose that herbivore-mediated differential selection deserves further investigation as a mechanism maintaining the observed diversity of glucosinolates in wild Brassica.

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Section: Introductionmentioning

confidence: 56%

Glucosinolate polymorphism in wild cabbage (Brassica oleracea) influences the structure of herbivore communities

2009

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“…The non-volatile nature of isothiocyanate 2i produced from sinalbin, in contrast to 1i and 4i, could also reduce long distance attraction of crucifer specialist insects (Renwick et al, 2006). A similar situation of glucosinolates with non-volatile products in leaves and 4 in roots has been reported from Barbarea vulgaris (Agerbirk et al, 2003), and a rare chemotype accumulating 4 in leaves has recently been described (van Leur et al, 2006). The present paper provides additional plant species for experimental studies of ecological effects (van Leur et al, 2008) of variable glucosinolate profiles in closely related species or genotypes of the same species.…”

Section: Evolution and Ecological Effects Of Sinalbin (2) Accumulationmentioning

confidence: 62%

“…While presence of glucosinolates were of considerable chemotaxonomic significance in initially defining the order (Kjr, 1974;Dahlgren, 1980;Rodman et al, 1998), the presence of individual glucosinolates or types of glucosinolates are more difficult to use as taxonomic markers. Although examples of natural genera with distinct glucosinolate profiles are known, glucosinolates can not be assumed to be neutral taxonomic markers due to their ecological effects, and several examples of evolutionary hotspots and intrageneric or intraspecific variation have been reported (Raybould and Moyes, 2001;Agerbirk et al, 2003;Kliebenstein et al, 2005;Windsor et al, 2005;van Leur et al, 2006).…”

Section: Glucosinolates and Chemotaxonomymentioning

confidence: 99%

Sinapis phylogeny and evolution of glucosinolates and specific nitrile degrading enzymes

et al. 2008

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“…The distinction between a resistant G and a susceptible P type of Barbarea vulgaris was proposed by Nielsen (1997) and Agerbirk et al (2003), based on the very strong association between flea-beetle resistance, no hairs, and the S isomer of 2-hydroxy-2-phenylethyl-glucosinolate in some Danish plants, and between susceptibility, hairiness, and the So far these two types have only been described from Denmark; G type-like plants have additionally been found in Western Europe by van Leur et al (2006). Our study now shows that the divergence between G and P types can also be found in a larger European sample.…”

Section: Discussionmentioning

confidence: 99%

Genetic and geographic structure of an insect resistant and a susceptible type of Barbarea vulgaris in western Europe

2011

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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.

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A heritable glucosinolate polymorphism within natural populations of Barbarea vulgaris

Cited by 63 publications

References 45 publications

Glucosinolate polymorphism in wild cabbage (Brassica oleracea) influences the structure of herbivore communities

Glucosinolate polymorphism in wild cabbage (Brassica oleracea) influences the structure of herbivore communities

Sinapis phylogeny and evolution of glucosinolates and specific nitrile degrading enzymes

Genetic and geographic structure of an insect resistant and a susceptible type of Barbarea vulgaris in western Europe

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