LOGIN

RSS Facebook Twitter YouTube
GLOSSARY       

SEARCHGLOSSARY

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

PROFILESEARCH

Phylogenomics reveals extensive reticulate evolution in Xiphophorus fishes

Home Forums Ichthyology Phylogenomics reveals extensive reticulate evolution in Xiphophorus fishes

This topic contains 0 replies, has 1 voice, and was last updated by  Matt 4 years, 9 months ago.

Viewing 3 posts - 1 through 3 (of 3 total)
  • Author
    Posts
  • #302650

    Matt
    Keymaster

    Evolution – accepted article

    Abstract

    Hybridization is increasingly being recognized as a widespread process, even between ecologically and behaviorally divergent animal species. Determining phylogenetic relationships in the presence of hybridization remains a major challenge for evolutionary biologists, but advances in sequencing technology and phylogenetic techniques are beginning to address these challenges. Here we reconstruct evolutionary relationships among swordtails and platyfishes (Xiphophorus: Poeciliidae), a group of species characterized by remarkable morphological diversity and behavioral barriers to interspecific mating. Past attempts to reconstruct phylogenetic relationships withinXiphophorus have produced conflicting results. Since many of the 26 species in the genus are interfertile, these conflicts are likely due to hybridization. Using genomic data, we resolve a high-confidence species tree of Xiphophorus that accounts for both incomplete lineage sorting and hybridization. Our results allow us to re-examine a long-standing controversy about the evolution of the sexually selected sword in Xiphophorus, and demonstrate that hybridization has been strikingly widespread in the evolutionary history of this genus.

    #350416

    BillT
    Participant

    This s a very cool evolutionary subject.

    Got a reference or a pdf?

    #350417

    Matt
    Keymaster

    I’ll mail you the pdf Bill but it’s still in ‘accepted’ format.

Viewing 3 posts - 1 through 3 (of 3 total)

You must be logged in to reply to this topic.