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Evolutionary dynamics of an Arabidopsis insect resistance quantitative trait locus.

Publication ,  Conference
Kroymann, J; Donnerhacke, S; Schnabelrauch, D; Mitchell-Olds, T
Published in: Proceedings of the National Academy of Sciences of the United States of America
November 2003

Glucosinolate profiles differ among Arabidopsis thaliana ecotypes, caused by the composition of alleles at several glucosinolate biosynthetic loci. One of these, GS-Elong, harbors a family of methylthioalkylmalate synthase (MAM) genes that determine the side chain length of aliphatic glucosinolate structures. Fine mapping reveals that GS-Elong constitutes an insect resistance quantitative trait locus, caused by variation in glucosinolate profiles conferred by polymorphism of MAM alleles in this region. A sequence survey of randomly chosen ecotypes indicates that GS-Elong is highly variable among A. thaliana ecotypes: indel polymorphisms are frequent, as well as gene conversion events between gene copies arranged in tandem. Furthermore, statistical methods of molecular population genetics suggest that one of the genes, MAM2, is subject to balancing selection. This may be caused by ecological tradeoffs, i.e., by contrasting physiological effects of glucosinolates on generalist vs. specialist insects.

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Published In

Proceedings of the National Academy of Sciences of the United States of America

DOI

EISSN

1091-6490

ISSN

0027-8424

Publication Date

November 2003

Volume

100 Suppl 2

Start / End Page

14587 / 14592

Related Subject Headings

  • Selection, Genetic
  • Quantitative Trait Loci
  • Polymorphism, Genetic
  • Oxo-Acid-Lyases
  • Moths
  • Molecular Sequence Data
  • Immunity, Innate
  • Glucosinolates
  • Genetic Variation
  • Gene Conversion
 

Citation

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Kroymann, J., Donnerhacke, S., Schnabelrauch, D., & Mitchell-Olds, T. (2003). Evolutionary dynamics of an Arabidopsis insect resistance quantitative trait locus. In Proceedings of the National Academy of Sciences of the United States of America (Vol. 100 Suppl 2, pp. 14587–14592). https://doi.org/10.1073/pnas.1734046100
Kroymann, Juergen, Susanne Donnerhacke, Domenica Schnabelrauch, and Thomas Mitchell-Olds. “Evolutionary dynamics of an Arabidopsis insect resistance quantitative trait locus.” In Proceedings of the National Academy of Sciences of the United States of America, 100 Suppl 2:14587–92, 2003. https://doi.org/10.1073/pnas.1734046100.
Kroymann J, Donnerhacke S, Schnabelrauch D, Mitchell-Olds T. Evolutionary dynamics of an Arabidopsis insect resistance quantitative trait locus. In: Proceedings of the National Academy of Sciences of the United States of America. 2003. p. 14587–92.
Kroymann, Juergen, et al. “Evolutionary dynamics of an Arabidopsis insect resistance quantitative trait locus.Proceedings of the National Academy of Sciences of the United States of America, vol. 100 Suppl 2, 2003, pp. 14587–92. Epmc, doi:10.1073/pnas.1734046100.
Kroymann J, Donnerhacke S, Schnabelrauch D, Mitchell-Olds T. Evolutionary dynamics of an Arabidopsis insect resistance quantitative trait locus. Proceedings of the National Academy of Sciences of the United States of America. 2003. p. 14587–14592.
Journal cover image

Published In

Proceedings of the National Academy of Sciences of the United States of America

DOI

EISSN

1091-6490

ISSN

0027-8424

Publication Date

November 2003

Volume

100 Suppl 2

Start / End Page

14587 / 14592

Related Subject Headings

  • Selection, Genetic
  • Quantitative Trait Loci
  • Polymorphism, Genetic
  • Oxo-Acid-Lyases
  • Moths
  • Molecular Sequence Data
  • Immunity, Innate
  • Glucosinolates
  • Genetic Variation
  • Gene Conversion