Molecular and morphological evidence of a single species, Boccardia proboscidea (Polychaeta: Spionidae), with multiple development modes

Gibson, Glenys D.; Paterson, Ian G.; Taylor, Harrison B.; Woolridge, B.

doi:10.1007/s002270050591

Cited by 42 publications

(48 citation statements)

References 18 publications

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“…In B. proboscidea the developmental mode varies within one single brood of one female. For this species interfertility between different developmental modes and also molecular data provided support for a single species (Gibson et al 1999;Schulze et al 2000). Genetic differences between habitats versus differentiation by distance…”

Section: Discussionmentioning

confidence: 68%

“…S. armiger individuals either were shedding their eggs into the water column, or, alternatively, were packing them into a jelly mass, the egg cocoon. In contrast, intermediate types of development have been found in Boccardia proboscidea, one of the rare, truly poecilogonous polychaetes (Gibson et al 1999;Schulze et al 2000). In B. proboscidea the developmental mode varies within one single brood of one female.…”

Section: Discussionmentioning

confidence: 98%

“…Scoloplos armiger is a potential candidate to be added to this list in the future. Thus far, the only true and undoubted examples of poecilogonous polychaetes in the literature are Streblospio benedicti, Boccardia proboscidea and Pygospio elegans (Gibson et al 1999;Morgan et al 1999;Schulze et al 2000).…”

Section: Developmental Switch and Reproductive Isolationmentioning

confidence: 99%

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Sibling species or poecilogony in the polychaete Scoloplos armiger?

Kruse¹,

Reusch

Schneider

2003

Marine Biology

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In marine invertebrates multiple modes of development, or poecilogony, may occur in a single species. However, after close examination, many of such putative cases turned out to be sibling species. A case in point may be the cosmopolitan orbiniid polychaete Scoloplos armiger, which inhabits marine shallow sediments. In addition to the well-known direct, holobenthic development from egg cocoons, pelagic larvae have also been described. Our culture experiments revealed a spatially segregated source of the two developmental modes. All females of an intertidal population produced egg cocoons and no pelagic larvae. All but 2 out of 15 females of an adjacent subtidal population produced pelagic larvae and no egg cocoons. Based on these results we performed a molecular genetic analysis (RAPD-PCR) on three intertidal and four subtidal populations in the North Sea. Selected samples from all sites were analysed also by the AFLP method. We found significantly higher genetic diversity within subtidal than within intertidal populations. This is consistent with a wider dispersal by pelagic larvae and a smaller effective population size when development is holobenthic. Total genetic divergence is not related to distance but to the intertidal/subtidal division. We suggest that S. armiger actually represents two sibling species.

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Section: Discussionmentioning

confidence: 68%

Section: Discussionmentioning

confidence: 98%

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Sibling species or poecilogony in the polychaete Scoloplos armiger?

Kruse¹,

Reusch

Schneider

2003

Marine Biology

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“…It creates burrows of varying shape and size that are made in muddy and sandy sediments or in existing mud-filled burrows and crevices in soft rock and mollusc shells. It can also be found among encrusting algae or amongst mussels (Hartman, 1940;Woodwick, 1963;Gibson et al, 1999;Read, 2004;Ruellet, 2004;Martínez et al, 2006;Simon et al, 2009). Boccardia proboscidea is known as an indicator species for organic enrichment of sediments and is often numerically dominant (Johnson, 1970;Blake & Kudenov, 1978;Jaubet et al, 2011).…”

Section: Habitat and Ecologymentioning

confidence: 99%

“…In Boccardia proboscidea development even differs within one population (Gibson et al, 1999). This species is able to produce non-viable eggs, which serve as food for developing larvae in the same egg capsule, resulting in rapid growth and offspring hatching as juveniles eleven days after oviposition.…”

Section: Reasons For Successmentioning

confidence: 99%

Boccardia proboscidea and Boccardiella hamata (Polychaeta: Spionidae: Polydorinae), introduced mud worms new for the North Sea and Europe, respectively

Kerckhof

Faasse

2014

Mar. Biodivers. Rec.

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Phylogenetic analysis of cryptic speciation in the polychaete Pygospio elegans

Kesäniemi

Rawson

Lindsay

et al. 2012

Ecology and Evolution

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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. elegansooded, 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.

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Molecular and morphological evidence of a single species, Boccardia proboscidea (Polychaeta: Spionidae), with multiple development modes

Cited by 42 publications

References 18 publications

Sibling species or poecilogony in the polychaete Scoloplos armiger?

Sibling species or poecilogony in the polychaete Scoloplos armiger?

Boccardia proboscidea and Boccardiella hamata (Polychaeta: Spionidae: Polydorinae), introduced mud worms new for the North Sea and Europe, respectively

Phylogenetic analysis of cryptic speciation in the polychaete Pygospio elegans

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