Hybridization and polyploidization effects on LTR-retrotransposon activation in potato genome

Hybridization and polyploidization are major forces in plant evolution and potatoes are not an exception. It is proposed that the proliferation of Long Terminal Repeat-retrotransposons (LTR-RT) is related to genome reorganization caused by hybridization and/or polyploidization. The main purpose of t...

Full description

Saved in:
Bibliographic Details
Published in:Journal of plant research 2022, Vol.135 (1), p.81-92
Main Authors: Gantuz, Magdalena, Morales, Andrés, Bertoldi, María Victoria, Ibañez, Verónica Noé, Duarte, Paola Fernanda, Marfil, Carlos Federico, Masuelli, Ricardo Williams
Format: Article
Language:English
Subjects:
Autotetraploid
Biomedical and Life Sciences
Copy number
Diploids
Genome, Plant - genetics
Genomes
Hybridization
Hybridization, Genetic
Interspecific hybridization
Life Sciences
Long terminal repeat
Phylogeny
Plant Biochemistry
Plant Ecology
Plant Physiology
Plant Sciences
Polymorphism
Polyploidy
Potatoes
Regular Paper – Genetics/Developmental Biology
Retroelements - genetics
Solanum tuberosum
Solanum tuberosum - genetics
Terminal Repeat Sequences - genetics
Vegetables
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Hybridization and polyploidization are major forces in plant evolution and potatoes are not an exception. It is proposed that the proliferation of Long Terminal Repeat-retrotransposons (LTR-RT) is related to genome reorganization caused by hybridization and/or polyploidization. The main purpose of the present work was to evaluate the effect of interspecific hybridization and polyploidization on the activation of LTR-RT. We evaluated the proliferation of putative active LTR-RT in a diploid hybrid between the cultivated potato Solanum tuberosum and the wild diploid potato species S. kurtzianum , allotetraploid lines derived from this interspecific hybrid and S. kurtzianum autotetraploid lines (ktz-autotetraploid) using the S-SAP (sequence-specific amplified polymorphism) technique and normalized copy number determination by qPCR. Twenty-nine LTR-RT copies were activated in the hybrid and present in the allotetraploid lines. Major LTR-RT activity was detected in Copia-27, Copia-12, Copia-14 and, Gypsy-22. According to our results, LTR-RT copies were activated principally in the hybrid, there was no activation in allotetraploid lines and only one copy was activated in the autotetraploid.
ISSN:0918-9440
1618-0860
DOI:10.1007/s10265-021-01354-9