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Characteristics of Duplicated Gene Expression and DNA Methylation Regulation in Different Tissues of Allopolyploid Brassica Napus

Overview
Journal BMC Plant Biol
Publisher Biomed Central
Specialty Biology
Date 2024 Jun 8
PMID 38851683
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Abstract

Plant polyploidization increases the complexity of epigenomes and transcriptional regulation, resulting in genome evolution and enhanced adaptability. However, few studies have been conducted on the relationship between gene expression and epigenetic modification in different plant tissues after allopolyploidization. In this study, we studied gene expression and DNA methylation modification patterns in four tissues (stems, leaves, flowers and siliques) of Brassica napusand its diploid progenitors. On this basis, the alternative splicing patterns and cis-trans regulation patterns of four tissues in B. napus and its diploid progenitors were also analyzed. It can be seen that the number of alternative splicing occurs in the B. napus is higher than that in the diploid progenitors, and the IR type increases the most during allopolyploidy. In addition, we studied the fate changes of duplicated genes after allopolyploidization in B. napus. We found that the fate of most duplicated genes is conserved, but the number of neofunctionalization and specialization is also large. The genetic fate of B. napus was classified according to five replication types (WGD, PD, DSD, TD, TRD). This study also analyzed generational transmission analysis of expression and DNA methylation patterns. Our study provides a reference for the fate differentiation of duplicated genes during allopolyploidization.

References
1.
Tatarinova T, Elhaik E, Pellegrini M . Cross-species analysis of genic GC3 content and DNA methylation patterns. Genome Biol Evol. 2013; 5(8):1443-56. PMC: 3762193. DOI: 10.1093/gbe/evt103. View

2.
Bird K, VanBuren R, Puzey J, Edger P . The causes and consequences of subgenome dominance in hybrids and recent polyploids. New Phytol. 2018; 220(1):87-93. DOI: 10.1111/nph.15256. View

3.
Rensing S . Gene duplication as a driver of plant morphogenetic evolution. Curr Opin Plant Biol. 2014; 17:43-8. DOI: 10.1016/j.pbi.2013.11.002. View

4.
Lu K, Wei L, Li X, Wang Y, Wu J, Liu M . Whole-genome resequencing reveals Brassica napus origin and genetic loci involved in its improvement. Nat Commun. 2019; 10(1):1154. PMC: 6411957. DOI: 10.1038/s41467-019-09134-9. View

5.
Nordborg M . Structured coalescent processes on different time scales. Genetics. 1997; 146(4):1501-14. PMC: 1208092. DOI: 10.1093/genetics/146.4.1501. View