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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10611 - Plant sciences, botany

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Journal of Biogeography

ISSN

0305-0270

e-ISSN

—

Svazek periodika

44

Číslo periodika v rámci svazku

12

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

12

Strana od-do

2717-2728

Kód UT WoS článku

000416164500004

EID výsledku v databázi Scopus

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