Supplementary material from "Evolutionary trade-offs between baseline and plastic gene expression in two congeneric oyster species" ...

• Main Authors: Li, Ao, Li, Li, Wang, Wei, Zhang, Guofan
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: The Royal Society 2019
• Subjects: Crassostrea gigas
• Online Access: https://dx.doi.org/10.6084/m9.figshare.c.4509068.v1; https://rs.figshare.com/collections/Supplementary_material_from_Evolutionary_trade-offs_between_baseline_and_plastic_gene_expression_in_two_congeneric_oyster_species_/4509068/1

Organismal responses to environmental stresses are a determinant of the effect of climate change. These can occur through the regulation of gene expression, involving genetic adaptation and plastic changes as evolutionary strategy. Heat shock protein ( hsp ) family genes are extensively expanded and play important roles in thermal adaptation in oysters. We investigated expression of all heat-responsive hsp s in two allopatric congeneric oyster species, Crassostrea gigas and C. angulata , which are respectively distributed along the northern and southern coasts of China, using common garden and reciprocal transplant experiments. Our results showed that hsp s in C. gigas have evolved higher basal levels of expression under ambient conditions at each field site, with lower expression plasticity in response to heat stress in comparison to C. angulata , which exhibited lower baseline expression but higher expression plasticity. This pattern was fixed regardless of environmental disturbance, potentially implying ...