What evidence is there that sulfur tolerance is an early ancestral trait in annelids that has been lost by most recent worms?

02 August 2020 0 9K Report

With limited access to my physical files, I am searching for a publication I read that suggest that sulfur tolerance may have been a trait of all annelids that has been lost by most modern worms. The paper cited the distribution of sulfur tolerance across the annelid tree that could best be explained by this hypothesis. Any help?

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