Cryptic species in the Andean hemiparasite Quinchamalium chilense (Schoepfiaceae: Santalales). Issue 3 (3rd April 2018)
- Record Type:
- Journal Article
- Title:
- Cryptic species in the Andean hemiparasite Quinchamalium chilense (Schoepfiaceae: Santalales). Issue 3 (3rd April 2018)
- Main Title:
- Cryptic species in the Andean hemiparasite Quinchamalium chilense (Schoepfiaceae: Santalales)
- Authors:
- Laphitz, Rita M Lopez
Ezcurra, Cecilia
Vidal-Russell, Romina - Abstract:
- Abstract : The integration of different characters (e.g. morphological, ecological, and molecular) is now recognized as important in species delimitation. In particular, genetic distances between homologous genes have been suggested as one of the main tools to identify species, especially in the case of cryptic species. Quinchamalium is morphologically variable and occupies a diverse set of biomes across its distribution in the Southern Andes. Recent work based on morphology has synonymized the entire genus as a single morphospecies, Quinchamalium chilense . This widely distributed taxon presents the opportunity to find potential cryptic species. The main objective of this study was to test the existence of cryptic species, based mainly on phylogenetic gene trees, genetic distances, and geographic patterns of haplotypes from molecular markers of the nuclear (ITS) and chloroplast ( trnL-F ) genomes, considering climatic and morphological characteristics. The ITS phylogeny and corresponding haplotype network resulted in three lineages with strong genetic differentiation and distinct geographic patterns. These lineages were informally named Desert, Matorral, and Mountain, based on their geographic distribution in different biomes. The trnL-F chloroplast phylogeny did not distinguish Desert from Matorral, and the haplotype network showed overlap between these last two lineages. Overall, we hypothesize the existence of two cryptic species within Quinchamalium chilense ( MountainAbstract : The integration of different characters (e.g. morphological, ecological, and molecular) is now recognized as important in species delimitation. In particular, genetic distances between homologous genes have been suggested as one of the main tools to identify species, especially in the case of cryptic species. Quinchamalium is morphologically variable and occupies a diverse set of biomes across its distribution in the Southern Andes. Recent work based on morphology has synonymized the entire genus as a single morphospecies, Quinchamalium chilense . This widely distributed taxon presents the opportunity to find potential cryptic species. The main objective of this study was to test the existence of cryptic species, based mainly on phylogenetic gene trees, genetic distances, and geographic patterns of haplotypes from molecular markers of the nuclear (ITS) and chloroplast ( trnL-F ) genomes, considering climatic and morphological characteristics. The ITS phylogeny and corresponding haplotype network resulted in three lineages with strong genetic differentiation and distinct geographic patterns. These lineages were informally named Desert, Matorral, and Mountain, based on their geographic distribution in different biomes. The trnL-F chloroplast phylogeny did not distinguish Desert from Matorral, and the haplotype network showed overlap between these last two lineages. Overall, we hypothesize the existence of two cryptic species within Quinchamalium chilense ( Mountain and Matorral–Desert ) that correspond to genetic, climatic, and morphological differences. … (more)
- Is Part Of:
- Systematics and biodiversity. Volume 16:Issue 3(2018)
- Journal:
- Systematics and biodiversity
- Issue:
- Volume 16:Issue 3(2018)
- Issue Display:
- Volume 16, Issue 3 (2018)
- Year:
- 2018
- Volume:
- 16
- Issue:
- 3
- Issue Sort Value:
- 2018-0016-0003-0000
- Page Start:
- 260
- Page End:
- 270
- Publication Date:
- 2018-04-03
- Subjects:
- genetic divergence -- molecular lineages -- morphology -- phylogeny -- phylogeography -- speciation
Biodiversity -- Periodicals
Biology -- Classification -- Periodicals
Natural history -- Periodicals
Biodiversity
Biology
Classification
Periodicals
578 - Journal URLs:
- http://journals.cambridge.org/action/displayJournal?jid=SYS ↗
http://journals.cambridge.org/JID_SYS ↗
http://www.tandfonline.com/toc/tsab20/current ↗
http://www.tandfonline.com/ ↗ - DOI:
- 10.1080/14772000.2017.1404504 ↗
- Languages:
- English
- ISSNs:
- 1478-0933
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
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- British Library DSC - BLDSS-3PM
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