Phylogenetic analysis of the Turkish Salix species based on sequence data from chloroplast matK and nuclear ITS regions

Date

2016-01-13

Author

Acar, Pelin
Özdemir Değirmenci, Funda
Kaya, Zeki

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The genus Salix L. is represented by more than 500 species in the world. About 28 species of these are naturally found in Turkey. This genus has been commonly used as biomass production for energy, phytoremediation and pharmacological products. The traditional methods for identifying the species based on morphology are insufficient to classify them due to hybridization, reproductive isolation, and polyploidy. The objective of this study was to reveal the phylogenetic relationships of native willow species in Turkey by studying the evolutionary conserved partial-regions of chloroplast and nuclear ribosomal genome. The sequence data are obtained from chloroplast-encoded matK and nuclear-encoded ITS region of 18 Salix species (taxa). The molecular diversity and phylogenetic analyses were performed by the MEGA software. Sequence data of both matK and ITS regions revealed high number of variable sites and most of them were parsimony informative sites. Preliminary results from matK sequence data are largely consistent with morphological data. The analyses of the sequences result in separating Turkish Salix species into two well-supported groups, subgenus Salix and Vetrix. However, the phylogenetic tree constructed with ITS sequence data differs from the matK tree in regard to the taxa positions. Particularly, S. pseudomedemii and S. apoda are located in Subgenus Salix group instead of Subgenus Vetrix. Interspecific hybridization among Salix species may be one of the causes for position change of these taxa in ITS sequence based tree. The phylogenetic analyses with matK and ITS data have produced results that suggest complex evolutionary relationships among Turkish Salix species.

URI

https://hdl.handle.net/11511/83598
https://pag.confex.com/pag/xxiv/webprogram/Paper19985.html

Conference Name

XXIV. Plant and Animal Genome Conference (2016)

Collections

Department of Biology, Conference / Seminar

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Citation Formats

P. Acar, F. Özdemir Değirmenci, and Z. Kaya, “Phylogenetic analysis of the Turkish Salix species based on sequence data from chloroplast matK and nuclear ITS regions,” presented at the XXIV. Plant and Animal Genome Conference (2016), San Diego, CA, 2016, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/83598.