High genomic differentiation and limited gene flow indicate recent cryptic speciation within the genus Laspinema (cyanobacteria)

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F22%3A73615064" target="_blank" >RIV/61989592:15310/22:73615064 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11310/22:10453290

Result on the web

<a href="https://www.frontiersin.org/articles/10.3389/fmicb.2022.977454/full" target="_blank" >https://www.frontiersin.org/articles/10.3389/fmicb.2022.977454/full</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3389/fmicb.2022.977454" target="_blank" >10.3389/fmicb.2022.977454</a>

Result language

angličtina

Original language name

High genomic differentiation and limited gene flow indicate recent cryptic speciation within the genus Laspinema (cyanobacteria)

Original language description

The sympatric occurrence of closely related lineages displaying conserved morphological and ecological traits is often characteristic of free-living microbes. Gene flow, recombination, selection, and mutations govern the genetic variability between these cryptic lineages and drive their differentiation. However, sequencing conservative molecular markers (e.g., 16S rRNA) coupled with insufficient population-level sampling hindered the study of intra-species genetic diversity and speciation in cyanobacteria. We used phylogenomics and a population genomic approach to investigate the extent of local genomic diversity and the mechanisms underlying sympatric speciation of Laspinema thermale. We found two cryptic lineages of Laspinema. The lineages were highly genetically diverse, with recombination occurring more frequently within than between them. That suggests the existence of a barrier to gene flow, which further maintains divergence. Genomic regions of high population differentiation harbored genes associated with possible adaptations to high/low light conditions and stress stimuli, although with a weak diversifying selection. Overall, the diversification of Laspinema species might have been affected by both genomic and ecological processes.

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

10602 - Biology (theoretical, mathematical, thermal, cryobiology, biological rhythm), Evolutionary biology

Project

<a href="/en/project/GJ19-12994Y" target="_blank" >GJ19-12994Y: Unraveling genomic and geographical diversification during speciation in cyanobacteria</a><br>

Continuities

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

Publication year

2022

Confidentiality

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

Name of the periodical

Frontiers in Microbiology

ISSN

1664-302X

e-ISSN

1664-302X

Volume of the periodical

13

Issue of the periodical within the volume

SEP

Country of publishing house

CH - SWITZERLAND

Number of pages

13

Pages from-to

"977454-1"-"9774541-13"

UT code for WoS article

000859363200001

EID of the result in the Scopus database

2-s2.0-85138831931