Deciphering genomic adaptations and climate resilience in the intertidal seagrass Zostera japonica.

Genomic analysis reveals TIP3-1 gene in Zostera japonica confers tolerance to salinity and heat, highlighting key adaptation mechanisms in intertidal seagrass.

• Why it matters: Understanding how seagrasses adapt to changing coastal environments is crucial for conservation, especially as climate change threatens ecosystem stability and resilience.
• What they did: The study assembled a chromosome-level genome and conducted comparative and population genomic analyses, identifying positively selected genes and divergence between northern and southern populations.
• The result: Northern populations show greater climate vulnerability, while southern populations have higher adaptive potential, informing conservation strategies and potential for assisted gene flow.