Phylogenetic relationships between Chondrilla L. species in European Russia based on plastid DNA sequencing

Alexandr Kashin,Ivan Schanzer,Alena Parkhomenko,Tatyana Kritskaya

doi:10.1051/bioconf/20181100021

Alexandr Kashin, Ivan Schanzer + Show 2 more

Open Access

https://doi.org/10.1051/bioconf/20181100021

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Abstract

The article examines the genetic diversity in 54 populations of 9 Chondrilla species (C. acantholepis, C. ambigua, C. brevirostris, C. canescens, C. graminea, C. juncea, C. laticoronata, C. latifolia, and C. pauciflora) in European Russia. Plastid DNA segments trnT–trnF are selected as markers. Reconstruction of evolutionary networks based on the principle of maximum parsimony reveals that the sample is divided into four groups, where group 1 is C. ambigua, 2 – C. brevirostris, 3 – C. laticoronata, 4 – C. acantholepis, C. canescens, C. graminea, C. juncea, and C. latifolia. The findings show that C. acantholepis, C. canescens, C. graminea, C. juncea and C. latifolia are to be treated as synonyms under the name of C. juncea.

Highlights

Chondrilla genus is comprised by approximately 30 species that form two subgeni and four sections [1]
Six of them − C. acantholepis Boiss., C. brevirostris Fisch. et Mey, C. canescens Kat. et Kir., C. graminea Bieb., C. juncea L., and C. latifolia Bieb.- belong to the section Chondrilla of the subgenus Chondrilla
The specimens were collected from the natural populations of 9 Chondrilla species

Summary

Introduction

Chondrilla genus is comprised by approximately 30 species that form two subgeni and four sections [1]. There are no less than 7 in vivo Chondrilla species in European Russia. Six of them − C. acantholepis Boiss., C. brevirostris Fisch. Et Mey, C. canescens Kat. et Kir., C. graminea Bieb., C. juncea L., and C. latifolia Bieb.- belong to the section Chondrilla of the subgenus Chondrilla. The seventh species − C. ambigua Fisch. The embryological analysis and the analysis of seed productivity show that, out of all the studied species in European Russia, C. ambigua is the only obligate amphimictic species while all the remaining taxa (C. acantholepis, C. canescens, C. graminea, C. juncea, C. latifolia, C. brevirostris, and C. laticoronata) are facultative apomicts [3, 5]. The present paper attempts to identify the relationships between the Chondrilla species in Southern Russia, based on the plastid DNA sequencing

Sampling

Statistical Analysis

Results and Discussion