Characterization and dynamics of repeatomes in closely related species of Hieracium (Asteraceae) and their synthetic and apomictic hybrids

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985939%3A_____%2F20%3A00533842" target="_blank" >RIV/67985939:_____/20:00533842 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.3389/fpls.2020.591053" target="_blank" >https://doi.org/10.3389/fpls.2020.591053</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3389/fpls.2020.591053" target="_blank" >10.3389/fpls.2020.591053</a>

Result language

angličtina

Original language name

Characterization and dynamics of repeatomes in closely related species of Hieracium (Asteraceae) and their synthetic and apomictic hybrids

Original language description

Non-model plants with large genomes have not often been studied at the genomic level. Here we present the first characterization of repeatomes in hawkweeds (Hieracium), Asteraceae with highly repetitive genomes. We use a model system, which enables us to distinguish the effects of hybridization from those of polyploidization, the latter coupled with the apomictic mode of reproduction. We study the dynamics of repetitive elements in two parents and their diploid synthetic F1 and triploid apomictic natural hybrids using NGS data and cytogenetic analyses of satellite DNA. We found that the kind and abundance of transposable elements, the largest fraction of the genomes, were basically unaffected by both evolutionary processes (i.e., no bursts were observed), but pararetrovirus was overabundant in apomicts and may be involved in polyploidization and/or a switch to asexual reproduction. Ribosomal and satellite DNAs were under- or overrepresented in hybrid/allopolyploid genomes and did not always correspond to the presence and number of chromosomal loci. Most of these patterns were individual-specific, but some satellites appeared to be species-specific, highlighting the highly dynamic nature of satellite DNA. This work contributes to the general understanding of repeatome evolution in polyploid apomictic plants, which is so far understudied.

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

10603 - Genetics and heredity (medical genetics to be 3)

Project

<a href="/en/project/GA17-14620S" target="_blank" >GA17-14620S: Repeatome dynamics in the earliest evolutionary stages of apomictic plants</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2020

Confidentiality

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

Name of the periodical

Frontiers in Plant Science

ISSN

1664-462X

e-ISSN

—

Volume of the periodical

11

Issue of the periodical within the volume

NOV 2

Country of publishing house

CH - SWITZERLAND

Number of pages

21

Pages from-to

1-21

UT code for WoS article

000589348200001

EID of the result in the Scopus database

2-s2.0-85096052761