Convergent and parallel evolution in life habit of the scallops (Bivalvia: Pectinidae)

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dc.contributor.author Alejandrino, Alvin
dc.contributor.author Serb, Jeanne
dc.contributor.author Puslednik, Louise
dc.contributor.author Serb, Jeanne
dc.contributor.department Ecology, Evolution and Organismal Biology
dc.date 2018-02-16T19:15:16.000
dc.date.accessioned 2020-06-30T02:16:20Z
dc.date.available 2020-06-30T02:16:20Z
dc.date.copyright Sat Jan 01 00:00:00 UTC 2011
dc.date.issued 2011-06-01
dc.description.abstract <p>Background: We employed a phylogenetic framework to identify patterns of life habit evolution in the marine bivalve family Pectinidae. Specifically, we examined the number of independent origins of each life habit and distinguished between convergent and parallel trajectories of life habit evolution using ancestral state estimation. We also investigated whether ancestral character states influence the frequency or type of evolutionary trajectories. Results: We determined that temporary attachment to substrata by byssal threads is the most likely ancestral condition for the Pectinidae, with subsequent transitions to the five remaining habit types. Nearly all transitions between life habit classes were repeated in our phylogeny and the majority of these transitions were the result of parallel evolution from byssate ancestors. Convergent evolution also occurred within the Pectinidae and produced two additional gliding clades and two recessing lineages. Furthermore, our analysis indicates that byssal attaching gave rise to significantly more of the transitions than any other life habit and that the cementing and nestling classes are only represented as evolutionary outcomes in our phylogeny, never as progenitor states. Conclusions: Collectively, our results illustrate that both convergence and parallelism generated repeated life habit states in the scallops. Bias in the types of habit transitions observed may indicate constraints due to physical or ontogenetic limitations of particular phenotypes.</p>
dc.description.comments <p>This article is from <em>BMC Evolutionary Biology</em> 11 (2011): 164, doi:<a href="http://dx.doi.org/10.1186/1471-2148-11-164" target="_blank">10.1186/1471-2148-11-164</a>. Posted with permission.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/eeob_ag_pubs/10/
dc.identifier.articleid 1014
dc.identifier.contextkey 7337486
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath eeob_ag_pubs/10
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/22961
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/eeob_ag_pubs/10/2011_Serb_ConvergentParallel.pdf|||Fri Jan 14 18:06:52 UTC 2022
dc.source.uri 10.1186/1471-2148-11-164
dc.subject.disciplines Ecology and Evolutionary Biology
dc.subject.disciplines Genetics
dc.subject.keywords phylogenetics
dc.subject.keywords life habit
dc.subject.keywords marine bivalve
dc.subject.keywords scallop
dc.title Convergent and parallel evolution in life habit of the scallops (Bivalvia: Pectinidae)
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication 0d7c4c16-b4be-426c-9439-e7985e654bce
relation.isOrgUnitOfPublication 6fa4d3a0-d4c9-4940-945f-9e5923aed691
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