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DNA-based species delimitation in algae

(2014) EUROPEAN JOURNAL OF PHYCOLOGY. 49(2). p.179-196
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Abstract
Given the problems of species delimitation in algae using morphology or sexual compatibility, molecular data are becoming the standard for delimiting species and testing their traditional boundaries. The idea that species are separately evolving metapopulation lineages, along with theoretical progress in phylogenetic and population genetic analyses, has led to the development of new methods of species delimitation. We review these recent developments in DNA-based species delimitation methods, and discuss how they have changed and continue to change our understanding of algal species boundaries. Although single-locus approaches have proven effective for a first rapid and large-scale assessment of species diversity, species delimitation based on single gene trees falls short due to gene tree-species tree incongruence, caused by confounding processes like incomplete lineage sorting, trans-species polymorphism, hybridization and introgression. Data from unlinked loci and multi-species coalescent methods, which combine principles from phylogenetics and population genetics, may now be able to account for these complicating factors. Several of these methods also provide statistical support regarding species boundaries, which is important because speciation is a process and therefore uncertainty about precise species boundaries is inevitable in recently diverged lineages.
Keywords
coalescence, DNA barcoding, BANGIALES RHODOPHYTA, REPRODUCTIVE ISOLATION, UNDERSTANDING DIVERSITY, RED ALGAE, GENE TREES, GREEN-ALGAE, SEQUENCE DATA, MOLECULAR PHYLOGENY, CRYPTIC DIVERSITY, SP-NOV, taxonomy, species concepts, speciation, molecular systematics, lineage sorting, gene genealogy, evolution, DNA taxonomy

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MLA
Leliaert, Frédérik, et al. “DNA-Based Species Delimitation in Algae.” EUROPEAN JOURNAL OF PHYCOLOGY, vol. 49, no. 2, 2014, pp. 179–96, doi:10.1080/09670262.2014.904524.
APA
Leliaert, F., Verbruggen, H., Vanormelingen, P., Steen, F., Lopez-Bautista, J. M., Zuccarello, G. C., & De Clerck, O. (2014). DNA-based species delimitation in algae. EUROPEAN JOURNAL OF PHYCOLOGY, 49(2), 179–196. https://doi.org/10.1080/09670262.2014.904524
Chicago author-date
Leliaert, Frédérik, Heroen Verbruggen, Pieter Vanormelingen, Frederique Steen, Juan M Lopez-Bautista, Giuseppe C Zuccarello, and Olivier De Clerck. 2014. “DNA-Based Species Delimitation in Algae.” EUROPEAN JOURNAL OF PHYCOLOGY 49 (2): 179–96. https://doi.org/10.1080/09670262.2014.904524.
Chicago author-date (all authors)
Leliaert, Frédérik, Heroen Verbruggen, Pieter Vanormelingen, Frederique Steen, Juan M Lopez-Bautista, Giuseppe C Zuccarello, and Olivier De Clerck. 2014. “DNA-Based Species Delimitation in Algae.” EUROPEAN JOURNAL OF PHYCOLOGY 49 (2): 179–196. doi:10.1080/09670262.2014.904524.
Vancouver
1.
Leliaert F, Verbruggen H, Vanormelingen P, Steen F, Lopez-Bautista JM, Zuccarello GC, et al. DNA-based species delimitation in algae. EUROPEAN JOURNAL OF PHYCOLOGY. 2014;49(2):179–96.
IEEE
[1]
F. Leliaert et al., “DNA-based species delimitation in algae,” EUROPEAN JOURNAL OF PHYCOLOGY, vol. 49, no. 2, pp. 179–196, 2014.
@article{4426913,
  abstract     = {{Given the problems of species delimitation in algae using morphology or sexual compatibility, molecular data are becoming the standard for delimiting species and testing their traditional boundaries. The idea that species are separately evolving metapopulation lineages, along with theoretical progress in phylogenetic and population genetic analyses, has led to the development of new methods of species delimitation. We review these recent developments in DNA-based species delimitation methods, and discuss how they have changed and continue to change our understanding of algal species boundaries. Although single-locus approaches have proven effective for a first rapid and large-scale assessment of species diversity, species delimitation based on single gene trees falls short due to gene tree-species tree incongruence, caused by confounding processes like incomplete lineage sorting, trans-species polymorphism, hybridization and introgression. Data from unlinked loci and multi-species coalescent methods, which combine principles from phylogenetics and population genetics, may now be able to account for these complicating factors. Several of these methods also provide statistical support regarding species boundaries, which is important because speciation is a process and therefore uncertainty about precise species boundaries is inevitable in recently diverged lineages.}},
  author       = {{Leliaert, Frédérik and Verbruggen, Heroen and Vanormelingen, Pieter and Steen, Frederique and Lopez-Bautista, Juan M and Zuccarello, Giuseppe C and De Clerck, Olivier}},
  issn         = {{0967-0262}},
  journal      = {{EUROPEAN JOURNAL OF PHYCOLOGY}},
  keywords     = {{coalescence,DNA barcoding,BANGIALES RHODOPHYTA,REPRODUCTIVE ISOLATION,UNDERSTANDING DIVERSITY,RED ALGAE,GENE TREES,GREEN-ALGAE,SEQUENCE DATA,MOLECULAR PHYLOGENY,CRYPTIC DIVERSITY,SP-NOV,taxonomy,species concepts,speciation,molecular systematics,lineage sorting,gene genealogy,evolution,DNA taxonomy}},
  language     = {{eng}},
  number       = {{2}},
  pages        = {{179--196}},
  title        = {{DNA-based species delimitation in algae}},
  url          = {{http://doi.org/10.1080/09670262.2014.904524}},
  volume       = {{49}},
  year         = {{2014}},
}

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