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Lineage-specific evolutionary rate in plants: Contributions of a screening for Cereus (Cactaceae)(1)

PREMISE OF THE STUDY: Predictable chloroplast DNA (cpDNA) sequences have been listed for the shallowest taxonomic studies in plants. We investigated whether plastid regions that vary between closely allied species could be applied for intraspecific studies and compared the variation of these plastid...

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Autores principales: Romeiro-Brito, Monique, Moraes, Evandro M., Taylor, Nigel P., Zappi, Daniela C., Franco, Fernando F.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Botanical Society of America 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4716776/
https://www.ncbi.nlm.nih.gov/pubmed/26819857
http://dx.doi.org/10.3732/apps.1500074
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author Romeiro-Brito, Monique
Moraes, Evandro M.
Taylor, Nigel P.
Zappi, Daniela C.
Franco, Fernando F.
author_facet Romeiro-Brito, Monique
Moraes, Evandro M.
Taylor, Nigel P.
Zappi, Daniela C.
Franco, Fernando F.
author_sort Romeiro-Brito, Monique
collection PubMed
description PREMISE OF THE STUDY: Predictable chloroplast DNA (cpDNA) sequences have been listed for the shallowest taxonomic studies in plants. We investigated whether plastid regions that vary between closely allied species could be applied for intraspecific studies and compared the variation of these plastid segments with two nuclear regions. METHODS: We screened 16 plastid and two nuclear intronic regions for species of the genus Cereus (Cactaceae) at three hierarchical levels (species from different clades, species of the same clade, and allopatric populations). RESULTS: Ten plastid regions presented interspecific variation, and six of them showed variation at the intraspecific level. The two nuclear regions showed both inter- and intraspecific variation, and in general they showed higher levels of variability in almost all hierarchical levels than the plastid segments. DISCUSSION: Our data suggest no correspondence between variation of plastid regions at the interspecific and intraspecific level, probably due to lineage-specific variation in cpDNA, which appears to have less effect in nuclear data. Despite the heterogeneity in evolutionary rates of cpDNA, we highlight three plastid segments that may be considered in initial screenings in plant phylogeographic studies.
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spelling pubmed-47167762016-01-27 Lineage-specific evolutionary rate in plants: Contributions of a screening for Cereus (Cactaceae)(1) Romeiro-Brito, Monique Moraes, Evandro M. Taylor, Nigel P. Zappi, Daniela C. Franco, Fernando F. Appl Plant Sci Application Article PREMISE OF THE STUDY: Predictable chloroplast DNA (cpDNA) sequences have been listed for the shallowest taxonomic studies in plants. We investigated whether plastid regions that vary between closely allied species could be applied for intraspecific studies and compared the variation of these plastid segments with two nuclear regions. METHODS: We screened 16 plastid and two nuclear intronic regions for species of the genus Cereus (Cactaceae) at three hierarchical levels (species from different clades, species of the same clade, and allopatric populations). RESULTS: Ten plastid regions presented interspecific variation, and six of them showed variation at the intraspecific level. The two nuclear regions showed both inter- and intraspecific variation, and in general they showed higher levels of variability in almost all hierarchical levels than the plastid segments. DISCUSSION: Our data suggest no correspondence between variation of plastid regions at the interspecific and intraspecific level, probably due to lineage-specific variation in cpDNA, which appears to have less effect in nuclear data. Despite the heterogeneity in evolutionary rates of cpDNA, we highlight three plastid segments that may be considered in initial screenings in plant phylogeographic studies. Botanical Society of America 2016-01-11 /pmc/articles/PMC4716776/ /pubmed/26819857 http://dx.doi.org/10.3732/apps.1500074 Text en © 2016 Romeiro-Brito et al. Published by the Botanical Society of America http://creativecommons.org/licenses/by-nc/4.0/ This work is licensed under a Creative Commons Attribution License (CC-BY-NC-SA).
spellingShingle Application Article
Romeiro-Brito, Monique
Moraes, Evandro M.
Taylor, Nigel P.
Zappi, Daniela C.
Franco, Fernando F.
Lineage-specific evolutionary rate in plants: Contributions of a screening for Cereus (Cactaceae)(1)
title Lineage-specific evolutionary rate in plants: Contributions of a screening for Cereus (Cactaceae)(1)
title_full Lineage-specific evolutionary rate in plants: Contributions of a screening for Cereus (Cactaceae)(1)
title_fullStr Lineage-specific evolutionary rate in plants: Contributions of a screening for Cereus (Cactaceae)(1)
title_full_unstemmed Lineage-specific evolutionary rate in plants: Contributions of a screening for Cereus (Cactaceae)(1)
title_short Lineage-specific evolutionary rate in plants: Contributions of a screening for Cereus (Cactaceae)(1)
title_sort lineage-specific evolutionary rate in plants: contributions of a screening for cereus (cactaceae)(1)
topic Application Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4716776/
https://www.ncbi.nlm.nih.gov/pubmed/26819857
http://dx.doi.org/10.3732/apps.1500074
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