Phylogenetic analysis of cryptic speciation in the polychaete Pygospio elegans
Kesäniemi, J., Rawson, P., Lindsay, S., & Knott, E. (2012). Phylogenetic analysis of cryptic speciation in the polychaete Pygospio elegans. Ecology and Evolution, 2 (5), 994-1007. doi:10.1002/ece3.226 Retrieved from http://onlinelibrary.wiley.com/doi/10.1002/ece3.226/full
Published in
Ecology and EvolutionDate
2012Copyright
© 2012 The Authors. Published by Blackwell Publishing Ltd. This is an Open Access article under the terms of the Creative Commons Attribution Non Commercial License which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.
Development in marine invertebrate species can take place through a variety of modes and larval forms, but within a species, developmental mode is typically uniform. Poecilogony refers to the presence of more than one mode of development within a single species. True poecilogony is rare, however, and in some cases, apparent poecilogony is actually the result of variation in development mode among recently diverged cryptic species. We used a phylogenetic approach to examine whether poecilogony in the marine polychaete worm, Pygospio elegans, is the result of cryptic speciation. Populations of worms identified as P. elegans express a variety of developmental modes including planktonic, brooded, and intermediate larvae; these modes are found both within and among populations. We examined sequence variation among partial mitochondrial cytochrome c oxidase subunit I sequences obtained for 279 individual worms sampled across broad geographic and environmental scales. Despite a large number of unique haplotypes (121 haplotypes from 279 individuals), sequence divergence among European samples was low (1.7%) with most of the sequence variation observed within populations, relative to the variation among regions. More importantly, we observed common haplotypes that were widespread among the populations we sampled, and the two most common haplotypes were shared between populations differing in developmental mode. Thus, our results support an earlier conclusion of poecilogony in P elegans. In addition, predominantly planktonic populations had a larger number of population-specific low-frequency haplotypes. This finding is largely consistent with interspecies comparisons showing high diversity for species with planktonic developmental modes in contrast to low diversity in species with brooded developmental modes.
...
Publisher
Blackwell PublishingISSN Search the Publication Forum
2045-7758Keywords
Original source
http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)2045-7758Metadata
Show full item recordCollections
License
Except where otherwise noted, this item's license is described as © 2012 The Authors. Published by Blackwell Publishing Ltd. This is an Open Access article under the terms of the Creative Commons Attribution Non Commercial License which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.
Related items
Showing items with similar title or keywords.
-
The effect of variation in developmental mode on the population dynamics of a spionid polychaete (Pygospio elegans) in a heterogeneous environment
Thonig, Anne (University of Jyväskylä, 2018) -
Original data for article: Acute and chronic response to a change in salinity of the euryhaline polychaete Pygospio elegans (Claparède)
Thonig, Anne; Banta, Gary Thomas; Gibon, Stéphane; Kesäniemi, Jenni; Winding Hansen, Benni; Knott, K. Emily (University of Jyväskylä, Open Science Centre. jyx@jyu.fi, 2019)These data were collected in an experimental study designed to evaluate the ability of the polychaete Pygospio elegans to cope with an acute as well as a long-term change in salinity. Specimens from Herslev, Denmark, ... -
Temporal genetic structure in a poecilogonous polychaete: the interplay of developmental mode and environmental stochasticity
Kesäniemi, Jenni; Mustonen, Marina; Boström, Christoffer; Hansen, Benni W; Knott, Emily (BioMed Central Ltd., 2014)Background: Temporal variation in the genetic structure of populations can be caused by multiple factors, including natural selection, stochastic environmental variation, migration, or genetic drift. In benthic marine ... -
Effect of parasite load on developmental mode polymorphism in Pygospio elegans : a preliminary test
Su, Houyi (2018)In parasite-host interactions, hosts can respond to parasites by alteration of life history traits. Intraspecific larval developmental polymorphism in some polychaetes, termed poecilogony, might be a plastic response to ... -
The relationship between genetic diversity of an annelid worm, Pygospio elegans, and local invertebrate species diversity
Heiskanen, Siru (2016)Ympäristön monimuotoisuutta mitataan pääasiassa erilaisten biologisten yksiköiden lukumäärinä. Populaatiogenetiikassa ne ovat geenejä tai alleeleja yhden lajin sisällä, yhteisöekologiassa puolestaan lajeja eliöyhteisöjen ...