Does comparative genomics reveal conservative evolution of the xylem transcriptome in vascular plants?
Conifers have highly conserved xylem transcriptomes, while angiosperm xylem transcriptomes are relatively diversified. Vascular plants share a common ancestral xylem transcriptome. The xylem transcriptomes of vascular plants are more conserved than the total transcriptomes. Evolution of the xylem transcriptome has largely followed the trend of plant evolution.
The results evidence further the independent effects of AGT gene polymorphisms and exposure to occupational noise. Our finding also suggests that workers carrying TT variant allele have higher risk of hypertension under chronic exposure to occupational noise.