Phylogenetic relationships between<i>Chondrilla</i>L. species in European Russia based on plastid DNA sequencing

Кашин, А. С.; Schanzer, Ivan A.; Kritskaya, T. A.; Parkhomenko, Alena S.

doi:10.1051/bioconf/20181100021

Cited by 2 publications

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“…The research started with examining the populations of those taxa that had been proved independent species by the earlier research on their morphological variability; and of those two taxa (C. canescens and C. juncea) the independance of which has not yet been established [1].…”

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confidence: 99%

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Karyotypic variability in some species of the genus Chondrilla (Asteraceae)

2018

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Abstract. Karyotypic variability of plants was evaluated in 17 populations of six species of the genus Chondrilla (C. ambigua Fisch., C. brevirostris Fisch, et Mey., C. laticoronata Leonova, C. canescens Kar., Kir., C. juncea, C. pauciflora Ledeb.) in the Astrakhan, Voronezh and Saratov regions, the Republic of Kalmykia, and Western Kazakhstan. It is maintained that C. ambigua is a strict diploid (2n = 2x = 10) species, while its close relative -C. pauciflora -is a strict triploid (2n = 3x = 15) taxon. The research demonstrates that the plants of the apomictic taxa C. brevirostris, C. canescens, C. juncea and C. laticoronata are characterized by the genomic instability in the form of chromosome instability which results in these species' mixed-ploidy populations.

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confidence: 99%

“…The research on genetic polymorphism and morphological variability of a number of Chondrilla species in European Russia [1] requires a thorough examination of the species' kariotypic variability.…”

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confidence: 99%

Karyotypic variability in some species of the genus Chondrilla (Asteraceae)

2018

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“…The aim of the present study was to assess the boundaries and relationships of Chondrilla species distributed in southern Russia based on biogeographic patterns of their population genetic structure. Some preliminary results of our studies, based on ISSR (Kashin et al 2017) and plastid markers, have been reported and published at the Russian Botanical Society Congress (Kashin et al 2018b). Below we present the final results of our investigations into population genetic structure of Chondrilla populations in southern European Russia.…”

Section: Introductionmentioning

confidence: 99%

Genetic polymorphism in Chondrilla (Asteraceae) in southern European Russia and the nature of Chondrilla juncea L

Кашин

Kritskaya

Parkhomenko

et al. 2019

Nordic Journal of Botany

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We studied genetic diversity in 54 populations of nine sexual and apomictic species of the genus Chondrilla (C. acantholepis, C. ambigua, C. brevirostris, C. canescens, C. graminea, C. juncea, C. laticoronata, C. latifolia and C. pauciflora) in SE European Russia and neighboring territories of NW Kazakhstan. We analysed the trnT-trnF region of plastid DNA and the internal transcribed spacer of ribosomal DNA (ITS1-5.8S-ITS2) using statistical parsimony, maximum likelihood and neighbor net methods. Two major evolutionary lineages, roughly corresponding to the two subgenera traditionally recognized in the region, were revealed. Within the first evolutionary lineage (subgenus Brachyrhynchus), the sexual diploid C. ambigua and its putatively hybrid apomictic derivatives C. brevirostris, C. laticoronata and C. pauciflora could be recognized. Their identity was also confirmed by analyses of ISSR markers. The second evolutionary lineage (subgenus Chondrilla) comprises C. juncea, C. acantholepis, C. canescens, C. graminea and C. latifolia in European Russia, but analyses of morphological variability and the genealogy of plastid and nuclear markers favor their treatment as the single facultatively apomictic species C. juncea. The results demonstrate that an apomictic mode of reproduction does not necessarily result in the formation of genetically separated microspecies.

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Phylogenetic relationships betweenChondrillaL. species in European Russia based on plastid DNA sequencing

Cited by 2 publications

References 5 publications

Karyotypic variability in some species of the genus Chondrilla (Asteraceae)

Karyotypic variability in some species of the genus Chondrilla (Asteraceae)

Genetic polymorphism in Chondrilla (Asteraceae) in southern European Russia and the nature of Chondrilla juncea L

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