The genomics and genetics of male ornaments and sex determination supergene in 
the Trinidadian guppy Poecilia reticulata

Künstner, A; Hoffmann, M; Medina, P; Kottler, VA; Weigel, D; Chan, F; Dreyer, C

Item

ITEM ACTIONSEXPORT

Add to Basket

Local TagsRelease HistoryDetailsSummary

Released

Poster

The genomics and genetics of male ornaments and sex determination supergene in the Trinidadian guppy Poecilia reticulata

MPS-Authors

/persons/resource/persons271305

Medina, P
Chan Group, Friedrich Miescher Laboratory, Max Planck Society;

/persons/resource/persons56629

Chan, F
Chan Group, Friedrich Miescher Laboratory, Max Planck Society;

External Resource

https://eseb.org/wp-content/uploads/2018/08/2015_Abstracts.pdf
(Abstract)

Fulltext (restricted access)

There are currently no full texts shared for your IP range.

Fulltext (public)

There are no public fulltexts stored in PuRe

Supplementary Material (public)

There is no public supplementary material available

Citation

Künstner, A., Hoffmann, M., Medina, P., Kottler, V., Weigel, D., Chan, F., et al. (2015). The genomics and genetics of male ornaments and sex determination supergene in the Trinidadian guppy Poecilia reticulata. Poster presented at 15th Congress of the European Society for Evolutionary Biology (ESEB 2015), Lausanne, Switzerland.

Cite as: https://hdl.handle.net/21.11116/0000-0010-C8A9-E

Abstract

Attracting mates, to a male Trinidadian guppy, is of utmost evolutionary significance. Under strong selection for male ornaments, theory predicts and genetic evidence supports that tight linkage may evolve between genetic sex determination and male ornament loci to form a “supergene”. The guppy Poecilia reticulata has long been an outstanding ecological model organism for studying sexual selection. Here we will present our work towards establishing the guppy as a genomic evolutionary model organism. To discover parts of the genome specific to the male, we have separately constructed male and female high-quality genome assemblies from inbred Guanapo guppy siblings (approximately 760Mb; N50: female 5.38Mb; male 2.82Mb). We extend our previous genetic results showing that the guppy linkage group 12 is the sex chromosome and we highlight its evolutionary turnover from rearrangements and transposable element insertions. Combining transcriptomics, population genetic and comparative genomics, we will discuss features of the male-specific genome and potential candidates for the guppy sex determination locus. The genomic resources allow us to consolidate past and current genetic mapping work on male pigment patterns, showing strong yet incomplete linkage with sex determination. Our results herald an exciting new chapter for this classical ecological model organism.