3 Works

Data from: Sensitivity to phosphorus limitation increases with ploidy level in a New Zealand snail

Maurine Neiman, Adam D. Kay & Amy C. Krist
Evolutionary and ecological factors that explain natural variation in ploidy level remain poorly understood. One intriguing possibility is that nutrient costs associated with higher per-cell nucleic acid content could differentially influence the fitness of different ploidy levels. Here, we test this hypothesis by determining whether access to phosphorus (P), a main component of nucleic acids, differentially affects growth rate in asexual freshwater snails (Potamopyrgus antipodarum) that differ in ploidy. As expected if larger genomes generate...

Data from: Male offspring production by asexual Potamopyrgus antipodarum, a New Zealand snail

Maurine Neiman, Katelyn Larkin, Andrew R. Thompson & Peter Wilton
As only females contribute directly to population growth, sexual females investing equally in sons and daughters experience a two-fold cost relative to asexuals producing only daughters. Typically, researchers have focused on benefits of sex that can counter this ‘cost of males’ and thus explain its predominance. Here, we instead ask whether asexuals might also pay a cost of males by quantifying the rate of son production in 45 experimental populations (‘lineages’) founded by obligately asexual...

Data from: Characterization of transcriptomes from sexual and asexual lineages of a New Zealand snail (Potamopyrgus antipodarum)

Peter R. Wilton, Daniel B. Sloan, John M. Logsdon, Harshavardhan Doddapaneni, Maurine Neiman &
Understanding the evolution and maintenance of sexual reproduction is one of the central challenges of evolutionary biology, yet we know very little about how sex influences molecular evolution. The New Zealand freshwater snail Potamopyrgus antipodarum is ideally suited to address this knowledge gap because obligately sexual individuals often coexist with multiple independently derived obligately asexual lineages. This unusual situation allows direct comparisons both between sexual and asexual P. antipodarum and across populations that differ in...

Registration Year

  • 2012

Resource Types

  • Dataset


  • University of Iowa
  • University of Wyoming
  • University of Virginia
  • University of St. Thomas