Comparative assessment of the copy number of satellite repeats in the genome of Triticeae species

Satellite repeats are a significant component of the genome of Triticeae and play a crucial role in the speciation. They are a valuable tool for studying these processes. Pseudoroegneria species play a special role among grasses, as they are considered putative donors of the St-genome in many polypl...

Full description

Saved in:
Bibliographic Details
Main Authors: P. Yu. Kroupin, A. I. Yurkina, A. A. Kocheshkova, D. S. Ulyanov, G. I. Karlov, M. G. Divashuk
Format: Article
Language:English
Published: Siberian Branch of the Russian Academy of Sciences, Federal Research Center Institute of Cytology and Genetics, The Vavilov Society of Geneticists and Breeders 2023-12-01
Series:Вавиловский журнал генетики и селекции
Subjects:
Online Access:https://vavilov.elpub.ru/jour/article/view/4005
Tags: Add Tag
No Tags, Be the first to tag this record!
_version_ 1832575026899976192
author P. Yu. Kroupin
A. I. Yurkina
A. A. Kocheshkova
D. S. Ulyanov
G. I. Karlov
M. G. Divashuk
author_facet P. Yu. Kroupin
A. I. Yurkina
A. A. Kocheshkova
D. S. Ulyanov
G. I. Karlov
M. G. Divashuk
author_sort P. Yu. Kroupin
collection DOAJ
description Satellite repeats are a significant component of the genome of Triticeae and play a crucial role in the speciation. They are a valuable tool for studying these processes. Pseudoroegneria species play a special role among grasses, as they are considered putative donors of the St-genome in many polyploid species. The aim of this study was to compare the copy number of satellite repeats in the genomes of Triticeae species. Quantitative real-time PCR was applied to determine the copy numbers of 22 newly discovered satellite repeats revealed in the whole-genome sequences of Pseudoroegneria species and one additional repeat previously identified in the genome of Aegilops crassa. The study focused on seven species of Pseudoroegneria, three species of Thinopyrum, Elymus pendulinus, Ae. tauschii, Secale cereale, and Triticum aestivum. Based on the copy number level and coefficients of variation, we identified three groups of repeats: those with low variability between species (medium-copy CL82), those with medium variability (low- and medium-copy CL67, CL3, CL185, CL119, CL192, CL89, CL115, CL95, CL168), and those with high coefficients of variation (CL190, CL184, CL300, CL128, CL207, CL69, CL220, CL101, CL262, CL186, CL134, CL251, CL244). CL69 exhibited a specific high copy number in all Pseudoroegneria species, while CL101 was found in both Pseudoroegneria and Th. junceum, CL244 in Th. bessarabicum, CL184 in P. cognata and S. cereale. CL95, CL128, CL168, CL186, CL207, and CL300 exhibited higher copy numbers in P. cognata compared to other species; CL3, CL95, CL115, CL119, CL190, CL220, CL207, and CL300 in P. kosaninii; CL89 in P. libanotica; CL134 in P. geniculata. Our assessment of the copy number of new satellite repeats in the St-genome and the analysis of their amplification specificity between species can contribute to the molecular-genetic and chromosome markers used for evolutionary, phylogenetic, and population studies of Triticeae species.
format Article
id doaj-art-830b7d47bbb44a82ac352bc3668732c3
institution Kabale University
issn 2500-3259
language English
publishDate 2023-12-01
publisher Siberian Branch of the Russian Academy of Sciences, Federal Research Center Institute of Cytology and Genetics, The Vavilov Society of Geneticists and Breeders
record_format Article
series Вавиловский журнал генетики и селекции
spelling doaj-art-830b7d47bbb44a82ac352bc3668732c32025-02-01T09:58:12ZengSiberian Branch of the Russian Academy of Sciences, Federal Research Center Institute of Cytology and Genetics, The Vavilov Society of Geneticists and BreedersВавиловский журнал генетики и селекции2500-32592023-12-0127894795710.18699/VJGB-23-1091423Comparative assessment of the copy number of satellite repeats in the genome of Triticeae speciesP. Yu. Kroupin0A. I. Yurkina1A. A. Kocheshkova2D. S. Ulyanov3G. I. Karlov4M. G. Divashuk5All-Russia Research Institute of Agricultural BiotechnologyAll-Russia Research Institute of Agricultural BiotechnologyAll-Russia Research Institute of Agricultural BiotechnologyAll-Russia Research Institute of Agricultural BiotechnologyAll-Russia Research Institute of Agricultural BiotechnologyAll-Russia Research Institute of Agricultural BiotechnologySatellite repeats are a significant component of the genome of Triticeae and play a crucial role in the speciation. They are a valuable tool for studying these processes. Pseudoroegneria species play a special role among grasses, as they are considered putative donors of the St-genome in many polyploid species. The aim of this study was to compare the copy number of satellite repeats in the genomes of Triticeae species. Quantitative real-time PCR was applied to determine the copy numbers of 22 newly discovered satellite repeats revealed in the whole-genome sequences of Pseudoroegneria species and one additional repeat previously identified in the genome of Aegilops crassa. The study focused on seven species of Pseudoroegneria, three species of Thinopyrum, Elymus pendulinus, Ae. tauschii, Secale cereale, and Triticum aestivum. Based on the copy number level and coefficients of variation, we identified three groups of repeats: those with low variability between species (medium-copy CL82), those with medium variability (low- and medium-copy CL67, CL3, CL185, CL119, CL192, CL89, CL115, CL95, CL168), and those with high coefficients of variation (CL190, CL184, CL300, CL128, CL207, CL69, CL220, CL101, CL262, CL186, CL134, CL251, CL244). CL69 exhibited a specific high copy number in all Pseudoroegneria species, while CL101 was found in both Pseudoroegneria and Th. junceum, CL244 in Th. bessarabicum, CL184 in P. cognata and S. cereale. CL95, CL128, CL168, CL186, CL207, and CL300 exhibited higher copy numbers in P. cognata compared to other species; CL3, CL95, CL115, CL119, CL190, CL220, CL207, and CL300 in P. kosaninii; CL89 in P. libanotica; CL134 in P. geniculata. Our assessment of the copy number of new satellite repeats in the St-genome and the analysis of their amplification specificity between species can contribute to the molecular-genetic and chromosome markers used for evolutionary, phylogenetic, and population studies of Triticeae species.https://vavilov.elpub.ru/jour/article/view/4005triticeaesatellite repeatsqpcrwhole-genome sequencing
spellingShingle P. Yu. Kroupin
A. I. Yurkina
A. A. Kocheshkova
D. S. Ulyanov
G. I. Karlov
M. G. Divashuk
Comparative assessment of the copy number of satellite repeats in the genome of Triticeae species
Вавиловский журнал генетики и селекции
triticeae
satellite repeats
qpcr
whole-genome sequencing
title Comparative assessment of the copy number of satellite repeats in the genome of Triticeae species
title_full Comparative assessment of the copy number of satellite repeats in the genome of Triticeae species
title_fullStr Comparative assessment of the copy number of satellite repeats in the genome of Triticeae species
title_full_unstemmed Comparative assessment of the copy number of satellite repeats in the genome of Triticeae species
title_short Comparative assessment of the copy number of satellite repeats in the genome of Triticeae species
title_sort comparative assessment of the copy number of satellite repeats in the genome of triticeae species
topic triticeae
satellite repeats
qpcr
whole-genome sequencing
url https://vavilov.elpub.ru/jour/article/view/4005
work_keys_str_mv AT pyukroupin comparativeassessmentofthecopynumberofsatelliterepeatsinthegenomeoftriticeaespecies
AT aiyurkina comparativeassessmentofthecopynumberofsatelliterepeatsinthegenomeoftriticeaespecies
AT aakocheshkova comparativeassessmentofthecopynumberofsatelliterepeatsinthegenomeoftriticeaespecies
AT dsulyanov comparativeassessmentofthecopynumberofsatelliterepeatsinthegenomeoftriticeaespecies
AT gikarlov comparativeassessmentofthecopynumberofsatelliterepeatsinthegenomeoftriticeaespecies
AT mgdivashuk comparativeassessmentofthecopynumberofsatelliterepeatsinthegenomeoftriticeaespecies