Transcriptome shock invokes disruption of parental expression-conserved genes in tetraploid wheat.

ABSTRACT: Allopolyploidy often triggers phenotypic novelty and gene expression remolding in the resulting polyploids. In this study, we employed multiple phenotypic and genetic approaches to investigate the nature and consequences of allotetraploidization between A- and S-subgenome of tetraploid wheat. Results showed that karyotype of the nascent allopolyploid plants (AT2) is stable but they showed clear novelty in multiple morphological traits which might have positively contributed to the initial establishment of the tetraploids. Further microarray-based transcriptome profiling and gene-specific cDNA-pyrosequencing have documented that transcriptome shock was exceptionally strong in AT2, but a substantial proportion of the induced expression changes was rapidly stabilized in early generations. Mea

SUBMITTER: Zhang H 

PROVIDER: S-EPMC4873831 | biostudies-literature | 2016 May

REPOSITORIES: biostudies-literature