Hybridization drives evolution of apomicts in Rubus subgenus Rubus: evidence from microsatellite markers

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F17%3A73583479" target="_blank" >RIV/61989592:15310/17:73583479 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00027006:_____/17:00004042

Výsledek na webu

<a href="https://academic.oup.com/aob/article/120/2/317/3578273" target="_blank" >https://academic.oup.com/aob/article/120/2/317/3578273</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1093/aob/mcx033" target="_blank" >10.1093/aob/mcx033</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Hybridization drives evolution of apomicts in Rubus subgenus Rubus: evidence from microsatellite markers

Popis výsledku v původním jazyce

Rubus is mostly consisting apomictic and polyploid species with a complicated taxonomy and history of ongoing hybridization. The aim of this study is to detect sources of genetic variability, determine the origin of apomictic taxa and validate microsatellite markers by cloning and sequencing. A total of 206 individuals from two central European regions were genotyped for 11 nuclear microsatellite loci and the chloroplast trnL-trnF region. Microsatellite alleles were further sequenced in order to determine the exact repeat number and to detect size homoplasy due to insertions/deletions in flanking regions. Key Results The results confirm that apomictic microspecies of ser. Radula are derived from crosses between sexual series Glandulosi and apomictic series Discolores, whereby the apomict acts as pollen donor. Each apomictic microspecies is derived from a single distinct genotype differing from the parental taxa, suggesting stabilized clonal reproduction. Intraspecific variation within apomicts is considerably low compared with sexual series Glandulosi, and reflects somatic mutation accumulation. While facultative apomicts produce clonal offspring, sexual species are the conduits of origin for new genetically different apomictic lineages. One of the main driving forces of evolution and speciation in the highly apomictic subgenus Rubus in central Europe is sexuality in the series Glandulosi. Palaeovegetation data suggest that initial hybridizations took place over different time periods in the two studied regions, and that the successful origin and spread of apomictic microspecies of the series Radula took place over several millennia. Additionally, the cloning and sequencing show that standard evaluations of microsatellite repeat numbers underestimate genetic variability considering homoplasy in allele size.

Název v anglickém jazyce

Hybridization drives evolution of apomicts in Rubus subgenus Rubus: evidence from microsatellite markers

Popis výsledku anglicky

Rubus is mostly consisting apomictic and polyploid species with a complicated taxonomy and history of ongoing hybridization. The aim of this study is to detect sources of genetic variability, determine the origin of apomictic taxa and validate microsatellite markers by cloning and sequencing. A total of 206 individuals from two central European regions were genotyped for 11 nuclear microsatellite loci and the chloroplast trnL-trnF region. Microsatellite alleles were further sequenced in order to determine the exact repeat number and to detect size homoplasy due to insertions/deletions in flanking regions. Key Results The results confirm that apomictic microspecies of ser. Radula are derived from crosses between sexual series Glandulosi and apomictic series Discolores, whereby the apomict acts as pollen donor. Each apomictic microspecies is derived from a single distinct genotype differing from the parental taxa, suggesting stabilized clonal reproduction. Intraspecific variation within apomicts is considerably low compared with sexual series Glandulosi, and reflects somatic mutation accumulation. While facultative apomicts produce clonal offspring, sexual species are the conduits of origin for new genetically different apomictic lineages. One of the main driving forces of evolution and speciation in the highly apomictic subgenus Rubus in central Europe is sexuality in the series Glandulosi. Palaeovegetation data suggest that initial hybridizations took place over different time periods in the two studied regions, and that the successful origin and spread of apomictic microspecies of the series Radula took place over several millennia. Additionally, the cloning and sequencing show that standard evaluations of microsatellite repeat numbers underestimate genetic variability considering homoplasy in allele size.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10611 - Plant sciences, botany

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

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

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Annals of Botany

ISSN

0305-7364

e-ISSN

—

Svazek periodika

120

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

12

Strana od-do

317-328

Kód UT WoS článku

000407118500011

EID výsledku v databázi Scopus

—