Journal
ECOLOGY AND EVOLUTION
Volume 13, Issue 4, Pages -Publisher
WILEY
DOI: 10.1002/ece3.9943
Keywords
Altai Mountain Country; DArTseq; distribution; fescues; hybridization; phylogeny
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Using genome-wide genotyping, this study provides insights into the phylogeny and genetic patterns of 17 fine-leaved species of Altai fescues. The findings reveal discrepancies between morphological and molecular data for some species, highlighting the need for further comprehensive research.
Festuca is one of the largest genera within the Poaceae family. Molecular phylogenies demonstrate that Festuca s.l. comprises two groups: broad- and fine-leaved species. The latter is the species-richest and taxonomically complicated group due to being paraphyletic. Here, we provide the first insight into the phylogeny of 17 fine-leaved species of Altai fescues. Based on genome-wide genotyping, the examined taxa were divided into three markedly differentiated clusters. The first cluster comprises species from the F. rubra complex, the second cluster includes the F. brachyphylla complex, and the third cluster contains taxa from the groups F. ovina, F. valesiaca, and F. kryloviana. Importantly, we detected a complex genetic pattern within the groups of F. valesiaca and F. kryloviana. Moreover, our findings underline a discrepancy between morphological and molecular data for some species distributed within the Altai Mountain Country. We suggest that in order to validate the current findings on the fine-leaved fescues, additional comprehensive research including morphological, karyological, and molecular methods is required. Nonetheless, our work provides a baseline for further investigations on the genus and studies on the floral diversity of Asia.
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