Evidence map›Paper›PMID 31170912›Full record

ArticleBMC evolutionary biology2019

A next generation approach to species delimitation reveals the role of hybridization in a cryptic species complex of corals.

Andrea M Quattrini, Tiana Wu, Keryea Soong, Ming-Shiou Jeng, Yehuda Benayahu, Catherine S McFadden

Abstract read
In one paragraph

Article in BMC evolutionary biology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

38 citing papers in PubMed.

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  13. Bis-Iridoid Glycosides and Triterpenoids fromMolecules (Basel, Switzerland) · 2024
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  20. Importance of timely metadata curation to the global surveillance of genetic diversity.Conservation biology : the journal of the Society for Conservation Biology · 2023
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Andrea M QuattriniBiology Department, Harvey Mudd College, 1250 N. Dartmouth Ave, Claremont, CA, 91711, USA. aquattrini@g.hmc.edu.ORCID 0000-0002-4247-3055
Tiana WuBiology Department, Harvey Mudd College, 1250 N. Dartmouth Ave, Claremont, CA, 91711, USA.
Keryea SoongInstitute of Marine Biology, National Sun Yat-sen University, Kaohsiung, Taiwan.
Ming-Shiou JengBiodiversity Research Center, Academia Sinica, Taipei, Taiwan.
Yehuda BenayahuSchool of Zoology, George S. Wise Faculty of Life Sciences, Tel Aviv University, 69978, Ramat Aviv, Israel.
Catherine S McFaddenBiology Department, Harvey Mudd College, 1250 N. Dartmouth Ave, Claremont, CA, 91711, USA.

Funding

Howard Hughes Medical Institute (US) 52006301
6 · The paper itself

Abstract

backgroundOur ability to investigate processes shaping the evolutionary diversification of corals (Cnidaria: Anthozoa) is limited by a lack of understanding of species boundaries. Discerning species of corals has been challenging due to a multitude of factors, including homoplasious and plastic morphological characters and the use of molecular markers that are either not informative or have not completely sorted. Hybridization can also blur species boundaries by leading to incongruence between morphology and genetics. We used traditional DNA barcoding and restriction-site associated DNA sequencing combined with coalescence-based and allele-frequency methods to elucidate species boundaries and simultaneously examine the potential role of hybridization in a speciose genus of octocoral, Sinularia.

resultsSpecies delimitations using two widely used DNA barcode markers, mtMutS and 28S rDNA, were incongruent with one another and with the morphospecies identifications. When mtMutS and 28S were concatenated, a 0.3% genetic distance threshold delimited the majority of morphospecies. In contrast, 12 of the 15 examined morphospecies formed well-supported monophyletic clades in both concatenated RAxML phylogenies and SNAPP species trees of > 6000 RADSeq loci. DAPC and Structure analyses also supported morphospecies assignments, but indicated the potential for two additional cryptic species. Three morphologically distinct species pairs could not, however, be distinguished genetically. ABBA-BABA tests demonstrated significant admixture between some of those species, suggesting that hybridization may confound species delimitation in Sinularia.

conclusionsA genomic approach can help to guide species delimitation while simultaneously elucidating the processes generating coral diversity. Results support the hypothesis that hybridization is an important mechanism in the evolution of Anthozoa, including octocorals, and future research should examine the contribution of this mechanism in generating diversity across the coral tree of life.

Indexed as

Hybridization, GeneticAnimalsAnthozoaDiscriminant AnalysisDNA Barcoding, TaxonomicLikelihood FunctionsPhylogenyPrincipal Component AnalysisSequence Analysis, DNASpecies SpecificityAnthozoaCoral reefsHybridizationOctocoralliaPhylogeneticsRADSeqTaxonomy

Identifiers

PMID31170912
PMCPMC6555025

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.