A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä
Dynamism in plastome structure observed across the phylogenetic tree of ferns
Tekijät: Lehtonen S, Cardenas GG
Kustantaja: OXFORD UNIV PRESS
Julkaisuvuosi: 2019
Journal: Botanical Journal of the Linnean Society
Tietokannassa oleva lehden nimi: BOTANICAL JOURNAL OF THE LINNEAN SOCIETY
Lehden akronyymi: BOT J LINN SOC
Vuosikerta: 190
Numero: 3
Aloitussivu: 229
Lopetussivu: 241
Sivujen määrä: 13
ISSN: 0024-4074
DOI: https://doi.org/10.1093/botlinnean/boz020
Rinnakkaistallenteen osoite: https://research.utu.fi/converis/portal/detail/Publication/42522058
The growing number of completely sequenced fern plastomes has revealed a structurally more dynamic genome than previously thought. Among other structural changes in plastid genome organization, in particular, the boundaries of inverted repeats have undergone expansions and reductions across many fern lineages. In this study, we generated eight new fern plastomes, each representing a different family, to improve the sampling of plastomes in the fern order Polypodiales. We inferred phylogenetic trees using Bayesian, maximum likelihood and parsimony methods and applying different data partitioning strategies. The trees produced under different analytical approaches were similar, consolidating a robust hypothesis of fern phylogeny, but with a few persistent uncertainties. Structural changes in the genomes include the presence of recently found mobile open reading frames that were concentrated in inverted repeats and in large single copy rpoB-psbZ and rps4-psaI regions. Mobile open reading frames are more common in Polypodiineae than in Aspleniineae, and this may be a signal of distinct evolutionary pattern of plastome structure between these two major fern clades.
Ladattava julkaisu This is an electronic reprint of the original article. |  |
