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Advances in finding Alba: the locus affecting life history and color polymorphism in a Colias butterfly
Stockholm University, Faculty of Science, Department of Zoology.
Stockholm University, Faculty of Science, Department of Zoology.
Number of Authors: 2
2017 (English)In: Journal of Evolutionary Biology, ISSN 1010-061X, E-ISSN 1420-9101, Vol. 30, no 1, 26-39 p.Article in journal (Refereed) Published
Abstract [en]

Although alternative life-history strategies exist within many populations, very little is known about their genetic basis and mechanistic insight into these traits could greatly advance the understanding of eco-evolutionary dynamics. Many species of butterfly within the genus Colias exhibit a sex-limited wing colour polymorphism, called Alba, which is correlated with an alternative life-history strategy. Here, we have taken the first steps in localizing the region carrying Alba in Colias croceus, a species with no genomic resources, by generating whole genome sequence of a single Alba mother and two sequencing pools, one for her Alba and another for her orange, offspring. These data were used in a bulk-segregant analysis wherein SNPs fulfilling the Mendelian inheritance expectations of Alba were identified. Then, using the conserved synteny in Lepidoptera, the Alba locus was assigned to chromosome 15 in Bombyx mori. We then identified candidate regions within the chromosome by investigating the distribution of Alba SNPs along the chromosome and the difference in nucleotide diversity in exons between the two pools. A region spanning similar to 5.7 Mbp at the 50 end of the chromosome was identified as likely to contain the Alba locus. These insights set the stage for more detailed genomic scans and mapping of the Alba phenotype, and demonstrate an efficient use of genomic resources in a novel species.

Place, publisher, year, edition, pages
2017. Vol. 30, no 1, 26-39 p.
Keyword [en]
Alba, Colias, colour polymorphism, life-history polymorphism, pooled sequencing
National Category
Biological Sciences
Identifiers
URN: urn:nbn:se:su:diva-141267DOI: 10.1111/jeb.12967ISI: 000394852200003PubMedID: 27541292OAI: oai:DiVA.org:su-141267DiVA: diva2:1087552
Available from: 2017-04-07 Created: 2017-04-07 Last updated: 2017-04-07Bibliographically approved

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Woronik, AlyssaWheat, Christopher W.
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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
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