Další formáty:
BibTeX
LaTeX
RIS
@article{1395016, author = {Chumova, Zuzana and Zaveska, Eliska and Mandáková, Terezie and Krak, Karol and Travnicek, Pavel}, article_location = {Oxford}, article_number = {2}, doi = {http://dx.doi.org/10.1093/aob/mcx021}, keywords = {Anthoxanthum; rDNA FISH; incomplete lineage sorting; Mediterranean; phylogeography}, language = {eng}, issn = {0305-7364}, journal = {Annals of Botany}, title = {The Mediterranean: the cradle of Anthoxanthum (Poaceae) diploid diversity}, url = {https://academic.oup.com/aob/article-abstract/120/2/285/3748213?redirectedFrom=fulltext}, volume = {120}, year = {2017} }
TY - JOUR ID - 1395016 AU - Chumova, Zuzana - Zaveska, Eliska - Mandáková, Terezie - Krak, Karol - Travnicek, Pavel PY - 2017 TI - The Mediterranean: the cradle of Anthoxanthum (Poaceae) diploid diversity JF - Annals of Botany VL - 120 IS - 2 SP - 285-302 EP - 285-302 PB - Oxford University Press SN - 03057364 KW - Anthoxanthum KW - rDNA FISH KW - incomplete lineage sorting KW - Mediterranean KW - phylogeography UR - https://academic.oup.com/aob/article-abstract/120/2/285/3748213?redirectedFrom=fulltext L2 - https://academic.oup.com/aob/article-abstract/120/2/285/3748213?redirectedFrom=fulltext N2 - Background and Aims Knowledge of diploid phylogeny and ecogeography provide a foundation for understanding plant evolutionary history, diversification patterns and taxonomy. The genus Anthoxanthum (vernal grasses, Poaceae) represents a taxonomically intricate polyploid complex with large phenotypic variation and poorly resolved evolutionary relationships. The aims of the study were to reveal: (1) evolutionary lineages of the diploid taxa and their genetic differentiation; (2) the past distribution of the rediscovered 'Mediterranean diploid'; and (3) possible migration routes of diploids in the Mediterranean. Methods A combined approach involving sequencing of two plastid regions (trnL-trnF and rpl32-trnL), nrDNA ITS, rDNA FISH analyses, climatic niche characterization and spatio-temporal modelling was used. Key Results Among the examined diploid species, only two well-differentiated evolutionary lineages were recognized: Anthoxanthum gracile and A. alpinum. The other taxa - A. aristatum, A. ovatum, A. maderense and the 'Mediterranean diploid' - form a rather intermixed group based on the examined molecular data. In situ rDNA localization enabled identification of the ancestral Anthoxanthum karyotype, shared by A. gracile and two taxa from the crown group. For the studied taxa, ancestral location probabilities for six discrete geographical regions in the Mediterranean were proposed and likely scenarios of gradual expansion from them were suggested. Modelling past and present distributions shows that the 'Mediterranean diploid' has already been occurring in the same localities for 120 000 years. Conclusions Highly congruent results were obtained and dated the origin and first diversification of Anthoxanthum to the Miocene. The later divergence probably took place in the Pleistocene and started polyploid evolution within the genus. The most recent diversification event is still occurring, and incomplete lineage sorting prevents full diversification of taxa at the molecular level, despite clear separation based on climatic niches. The 'Mediterranean diploid' is hypothesized to be a possible relic of the most recent common ancestor of Anthoxanthum due to their sharing of ancestral features. ER -
CHUMOVA, Zuzana, Eliska ZAVESKA, Terezie MANDÁKOVÁ, Karol KRAK a Pavel TRAVNICEK. The Mediterranean: the cradle of Anthoxanthum (Poaceae) diploid diversity. \textit{Annals of Botany}. Oxford: Oxford University Press, 2017, roč.~120, č.~2, s.~285-302. ISSN~0305-7364. Dostupné z: https://dx.doi.org/10.1093/aob/mcx021.
|