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Species concepts and speciation factors in cyanobacteria, with connection to the problems of diversity and classification

Dvořák, Petr ; Poulíčková, Aloisie ; Hašler, Petr ; Belli, Mattia ; Casamatta, Dale A. ; Papini, Alessio

Biodiversity and conservation, 2015-04, Vol.24 (4), p.739-757 [同儕審閱期刊]

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題名:
Species concepts and speciation factors in cyanobacteria, with connection to the problems of diversity and classification
著者: Dvořák, Petr ; Poulíčková, Aloisie ; Hašler, Petr ; Belli, Mattia ; Casamatta, Dale A. ; Papini, Alessio
主題: Analysis ; Biodiversity ; Biological diversity ; Biomedical and Life Sciences ; Classification ; Climate Change/Climate Change Impacts ; Conservation Biology/Ecology ; Cyanobacteria ; Ecology ; Evolutionary biology ; Life Sciences ; Prokaryotes ; Review Paper
所屬期刊: Biodiversity and conservation, 2015-04, Vol.24 (4), p.739-757
描述: The cyanobacteria are the most important prokaryotic primary producers on Earth, inhabiting a great diversity of aquatic and terrestrial environments exposed to light. However, the evolutionary forces leading to their divergence and speciation remain largely enigmatic compared to macroorganisms due to their prokaryotic nature, including vast population sizes, and largely asexual reproduction. The advent of modern molecular techniques has facilitated an understanding of the important factors shaping cyanobacterial evolution, including horizontal gene transfer and homologous recombination. We review the forces shaping the evolution of cyanobacteria and discuss the role of cohesive forces on speciation. Further, while myriad species concepts and definitions are currently used, only a limited subset might be applied to cyanobacteria due to their asexual reproduction. Additionally, concepts based solely on phenotypes provide insufficient resolution. A monophyletic species concept which is universal may be ideal for cyanobacteria. Actual identification of the cyanobacteria is difficult due to cryptic diversity, lack of morphological variability, and frequent convergent evolutionary events. Thus, applied molecular techniques such as DNA barcoding will be useful for identifications of environmental samples. Lastly, we show that the real biodiversity of the cyanobacteria is widely underestimated, due in part to low sampling efforts, sensitivity to the molecular markers employed, and the species definitions employed by researchers. In conclusion, we anticipate a rapid increase in cyanobacterial taxa described and large revisions of the system in the future as scientists adopt a common approach to cyanobacterial systematics.
出版者: Dordrecht: Springer Netherlands
語言: 英文
識別號: ISSN: 0960-3115
EISSN: 1572-9710
DOI: 10.1007/s10531-015-0888-6
資源來源: Agricultural & Environmental Science Collection
SpringerLink (Online service)

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Species concepts and speciation factors in cyanobacteria, with connection to the problems of diversity and classification

Dvořák, Petr ; Poulíčková, Aloisie ; Hašler, Petr ; Belli, Mattia ; Casamatta, Dale A. ; Papini, Alessio

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