ArticleMolecular ecology2012
Consequences of a poecilogonous life history for genetic structure in coastal populations of the polychaete Streblospio benedicti.
Article in Molecular ecology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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10 citing papers in PubMed, 28 citations in OpenAlex.
- What Is the Population Structure of Poecilogonic Species? Evidence From Large-Scale Genotyping in a Neogastropod Lineage (Conoidea: Raphitoma).Molecular ecology · 2025Article
- Assortative mating and mate-choice contributes to the maintenance of a developmental dimorphism in Streblospio benedicti.Journal of experimental zoology. Part B, Molecular and developmental evolution · 2023Article
- Latitudinal variation and plasticity in response to temperature inEcology and evolution · 2023Article
- The Genome of the Poecilogonous Annelid Streblospio benedicti.Genome biology and evolution · 2022Article
- Plasticity and artificial selection for developmental mode in a poecilogonous sea slug.Ecology and evolution · 2021Article
- Baby makes three: Maternal, paternal, and zygotic genetic effects shape larval phenotypic evolution.Evolution; international journal of organic evolution · 2021Article
- First genetic assessment of brackish water polychaeteZoological research · 2020Article
- Article
- Discrete phenotypes are not underpinned by genome-wide genetic differentiation in the squat lobster Munida gregaria (Crustacea: Decapoda: Munididae): a multi-marker study covering the Patagonian shelf.BMC evolutionary biology · 2016Article
- Homogeneous nuclear background for mitochondrial cline in northern range of Notochthamalus scabrosus.G3 (Bethesda, Md.) · 2014Article
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Authors and funding
2 authors at 2 institutions in 1 country.
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Abstract
In many species, alternative developmental pathways lead to the production of two distinct phenotypes, promoting the evolution of morphological novelty and diversification. Offspring type in marine invertebrates influences transport time by ocean currents, which dictate dispersal potential and gene flow, and thus has sweeping evolutionary effects on the potential for local adaptation and on rates of speciation, extinction and molecular evolution. Here, we use the polychaete Streblospio benedicti to investigate the effects of dimorphic offspring type on gene flow and genetic structure in coastal populations. We use 84 single nucleotide polymorphism (SNP) markers for this species to assay populations on the East and West Coasts of the United States. Using these markers, we found that in their native East Coast distribution, populations of S. benedicti have high-population genetic structure, but this structure is associated primarily with geographic separation rather than developmental differences. Interestingly, very little genetic differentiation is recovered between individuals of different development types when they occur in the same or nearby populations, further supporting that this is a true case of poecilogony. In addition, we were able to demonstrate that the recently introduced (~100 ya) West Coast populations probably originated from a lecithotrophic population near Delaware.
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