Abstract
Variability of nuclear ITS rDNA and plastid ycf1 gene was studied to elucidate genetic diversity ofPaeonia anomala(Paeoniaceae), which possesses the most extensive range among all species of the genus. Sixteen populations were sampled across the entire distribution range of the species. The principal coordinate analysis suggested the existence of three ycf1 haplotype groups distributed in distinct geographical locations. For ITS region, no variability throughout the range was found; only samples ofP. anomalafrom its north-western range margin (the Kola Peninsula) are characterized by unique nucleotide substitutions.
Highlights
The genus Paeonia L. comprises about 35 species of shrubs and perennial herbaceous plants that are common in the northern hemisphere
Our previous study based on nuclear internal transcribed spacers (ITS) rDNA and plastid ycf1 gene showed that P. anomala represents a separate species, distinct from P. hybrida and P. intermedia confused with it in the Altay region or Central Asia [5]
Paeonia anomala with its wide distribution range represents a most successful species within the genus
Summary
The genus Paeonia L. comprises about 35 species of shrubs and perennial herbaceous plants that are common in the northern hemisphere. We used nuclear ITS rDNA and plastid ycf1 gene to investigate the phylogeographic pattern of the perennial herb Paeonia anomala. The species occupies a wide continental distributional range, disjunctly extending from northern Europe to central Siberia, Mongolia and China [3]. Throughout its distribution range, Paeonia anomala shows a wide phenotypic variation, both in reproductive and vegetative traits, with the description of subspecies or varieties [4].
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