A Panicum-derived chromosomal segment captured by Hordeum a few million years ago preserves a set of stress-related genes

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389030%3A_____%2F21%3A00544528" target="_blank" >RIV/61389030:_____/21:00544528 - isvavai.cz</a>

Alternative codes found

RIV/68081707:_____/21:00544528 RIV/67985939:_____/21:00544528 RIV/60460709:41330/21:85664

Result on the web

<a href="https://doi.org/10.1111/tpj.15167" target="_blank" >https://doi.org/10.1111/tpj.15167</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/tpj.15167" target="_blank" >10.1111/tpj.15167</a>

Result language

angličtina

Original language name

A Panicum-derived chromosomal segment captured by Hordeum a few million years ago preserves a set of stress-related genes

Original language description

Intra-specific variability is a cornerstone of evolutionary success of species. Acquiring genetic material from distant sources is an important adaptive mechanism in bacteria, but it can also play a role in eukaryotes. In this paper, we investigate the nature and evolution of a chromosomal segment of panicoid (Poaceae, Panicoideae) origin occurring in the nuclear genomes of species of the barley genus Hordeum (Pooideae). The segment, spanning over 440 kb in the Asian Hordeum bogdanii and 219 kb in the South American Hordeum pubiflorum, resides on a pair of nucleolar organizer region (NOR)-bearing chromosomes. Conserved synteny and micro-collinearity of the segment in both species indicate a common origin of the segment, which was acquired before the split of the respective barley lineages 5–1.7 million years ago. A major part of the foreign DNA consists of several approximately 68 kb long repeated blocks containing five stress-related protein-coding genes and transposable elements (TEs). Whereas outside these repeats, the locus was invaded by multiple TEs from the host genome, the repeated blocks are rather intact and appear to be preserved. The protein-coding genes remained partly functional, as indicated by conserved reading frames, a low amount of non-synonymous mutations, and expression of mRNA. A screen across Hordeum species targeting the panicoid protein-coding genes revealed the presence of the genes in all species of the section Stenostachys. In summary, our study shows that grass genomes can contain large genomic segments obtained from distantly related species. These segments usually remain undetected, but they may play an important role in the evolution and adaptation of species.

Czech name

—

Czech description

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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

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

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

Publication year

2021

Confidentiality

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

Name of the periodical

Plant Journal

ISSN

0960-7412

e-ISSN

1365-313X

Volume of the periodical

105

Issue of the periodical within the volume

5

Country of publishing house

GB - UNITED KINGDOM

Number of pages

24

Pages from-to

1141-1164

UT code for WoS article

000628802900002

EID of the result in the Scopus database

2-s2.0-85102553355