Is evolution of apomicts driven by the phylogeography of the sexual ancestor? Insights from European and Caucasian brambles (Rubus, Rosaceae)

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F17%3A73583469" target="_blank" >RIV/61989592:15310/17:73583469 - isvavai.cz</a>

Result on the web

<a href="http://onlinelibrary.wiley.com/doi/10.1111/jbi.13084/epdf" target="_blank" >http://onlinelibrary.wiley.com/doi/10.1111/jbi.13084/epdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/jbi.13084" target="_blank" >10.1111/jbi.13084</a>

Result language

angličtina

Original language name

Is evolution of apomicts driven by the phylogeography of the sexual ancestor? Insights from European and Caucasian brambles (Rubus, Rosaceae)

Original language description

Apomixis, i.e. asexual reproduction via seeds, occurs in many plant taxa of diverse phylogenetic origins and has resulted in a high abundance and wide distribution of some groups. When and where apomicts arose and how their evolution is linked to their sexual ancestors is poorly understood. We aimed at detecting phylogeographical patterns in Rubus ulmifolius-R. sanctus agg., a diploid sexual species aggregate from Rubus series Discolores (Rosaceae), and asked where and when its polyploid apomictic descendants originated. The data reveal strong, continental-scale genetic structuring within Rubus ulmifolius-R. sanctus agg. Geographical patterns of genetic diversity and ecological niche models indicate its survival mainly on the Iberian Peninsula and in Morocco during the Last Glacial Maximum, as well as population bottlenecks in the eastern Mediterranean and the Caucasus, whereas low allelic diversity in north-western Europe stems from post-glacial re-colonization from southern refugia. The distribution of alleles among diploids and polyploids indicates that the first allopolyploidization events occurred prior to the last glaciation, but also reflects post-glacial gene flow from diploids to polyploids. Polyploid apomicts both preserve ancestral alleles lost in their diploid ancestors because of ice-age bottlenecks and harbour also derived, i.e. younger, alleles obtained from diploid taxa via recent gene flow. Diversification of apomicts as a result of the diploid&apos;s genetic deterioration is hypothesized. Then, geographical parthenogenesis in Rubus could also be explained by genetic diversity patterns in the diploid, sexual ancestor.

Czech name

—

Czech description

—

Type

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

CEP classification

—

OECD FORD branch

10611 - Plant sciences, botany

Project

—

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2017

Confidentiality

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

Name of the periodical

Journal of Biogeography

ISSN

0305-0270

e-ISSN

—

Volume of the periodical

44

Issue of the periodical within the volume

12

Country of publishing house

GB - UNITED KINGDOM

Number of pages

12

Pages from-to

2717-2728

UT code for WoS article

000416164500004

EID of the result in the Scopus database

—