Out of the Balkans and Anatolia to the Western Alps? Surprising phylogenetic implications for two endemic Alyssum (Brassicaceae) species: A. cognense sp. nov. and A. rossetii

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F23%3A10474007" target="_blank" >RIV/00216208:11310/23:10474007 - isvavai.cz</a>

Result on the web

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=pCGZN5wHNV" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=pCGZN5wHNV</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1093/botlinnean/boac041" target="_blank" >10.1093/botlinnean/boac041</a>

Result language

angličtina

Original language name

Out of the Balkans and Anatolia to the Western Alps? Surprising phylogenetic implications for two endemic Alyssum (Brassicaceae) species: A. cognense sp. nov. and A. rossetii

Original language description

The European Alps show a high degree of endemism associated mainly with the location of glacial refugia and environmental heterogeneity. Several Alpine endemics have evolved in the genus Alyssum. Here we study perennial Alyssum populations in the Western Alps, mainly distributed in the Aosta Valley region, which hosts high species diversity, although endemics are rare. We addressed the recently described stenoendemic A. rossetii and taxonomically uncertain populations usually attributed to A. montanum s.s. to clarify their phylogenetic position and morphological differentiation. The latter entity has been shown to be distinct from A. montanum s.s. and is described as a new species, Alyssum cognense, phylogenetically placed in the A. montanum-A. repens species complex. Both morphological and genetic patterns revealed that its closest relative occurs in the central Balkans. We present detailed ecological characteristics and morphological differentiation of A. cognense sp. nov. from its relatives and geographically closest species and speculate on its biogeographic origin. Genetic patterns (reduced diversity and nestedness) suggest long-distance dispersal from the central Balkan Peninsula. The second studied species, A. rossetii, is phylogenetically distant and belongs to the mainly Asian Alyssum section Gamosepalum lineage, which includes few representatives in southern and eastern Europe. The phylogenetically closest species of A. rossetii are Anatolian endemics, so this extreme disjunction remains puzzling. The present study illustrates the need for in-depth taxonomic and phylogenetic studies, even in well-explored Alpine regions, and also shows that the processes underlying the evolution of endemics can be complex and poorly understood.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10611 - Plant sciences, botany

Project

<a href="/en/project/GA19-06632S" target="_blank" >GA19-06632S: How hybridisation and allopolyploidisation affect the diversity in three Brassicaceae tribes</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2023

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Botanical Journal of the Linnean Society

ISSN

0024-4074

e-ISSN

1095-8339

Volume of the periodical

201

Issue of the periodical within the volume

3

Country of publishing house

GB - UNITED KINGDOM

Number of pages

23

Pages from-to

286-308

UT code for WoS article

000904054500001

EID of the result in the Scopus database

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