3 Works

High levels of inbreeding with spatial and host-associated structure in lice of an endangered freshwater seal

Stephany Virrueta Herrera, Tommi Nyman, Kevin Johnson, Andrew Sweet, Eeva Ylinen & Mervi Kunnasranta
Host-specialist parasites of endangered large vertebrates are in many cases more endangered than their hosts. In particular, low host population densities and reduced among-host transmission rates are expected to lead to inbreeding within parasite infrapopulations living on single host individuals. Furthermore, spatial population structures of directly-transmitted parasites should be concordant with those of their hosts. Using population genomic approaches, we investigated inbreeding and population structure in a host-specialist seal louse (Echinophthirius horridus) infesting the Saimaa...

Data from: Comparative host-pathogen associations of Snake Fungal Disease in sympatric species of water snakes (Nerodia)

David Rodriguez, Stephen Harding, C. Guilherme Becker, Jessica Yates, Paul Crump, Michael Forstner & Stephen Mullin
The ascomycete fungus Ophidiomyces ophiodiicola (Oo) is the causative agent of ophidiomycosis (Snake Fungal Disease), which has been detected globally. However, surveillance efforts in the central U.S., specifically Texas, have been minimal. The threatened and rare Brazos water snake (Nerodia harteri harteri) is one of the most range restricted snakes in the U.S. and is sympatric with two wide-ranging congeners, N. erythrogaster transversa and N. rhombifer, in north central Texas; thus, providing an opportunity to...

Data from: Independent evolution of highly variable, fragmented mitogenomes of parasitic lice

Andrew Sweet, Kevin Johnson & Stephen Cameron
The mitochondrial genomes (mitogenomes) of bilaterian animals are highly conserved structures that usually consist of a single circular chromosome. However, several species of parasitic lice (Insecta: Phthiraptera) possess fragmented mitogenomes, where the mitochondrial genes are present on separate, circular chromosomes. Nevertheless, the extent, causes, and consequences of this structural variation remain poorly understood. Here, we combined new and existing data to better understand the evolution of mitogenome fragmentation in major groups of parasitic lice. We...

Registration Year

  • 2022
    3

Resource Types

  • Dataset
    3

Affiliations

  • Arkansas State University
    3
  • University of Illinois Urbana-Champaign
    2
  • University of Eastern Finland
    1
  • Texas State University
    1
  • Texas Parks and Wildlife Department
    1
  • Purdue University West Lafayette
    1
  • University of Central Florida
    1
  • Norwegian Institute of Bioeconomy Research
    1
  • Pennsylvania State University
    1
  • Texas State University
    1