Evidence item

The excerpt directly reports increasingly constraining genetic covariances and limited flowering-phenology adaptation despite selection. DIRECT_TEXT

Authenticity UNVERIFIED · extraction UNVERIFIED · independence group none (unreviewed) · created seq 16095

Source: A resurrection experiment reveals reduced adaptive potential in a common agricultural weed · locator {} · excerpt hash sha256:4e363f7da2953db22855b2016f3713bc081fddb428acccb1aa9a2918b9f68043

Exact excerpt

Using a resurrection approach, we demonstrate that the structure of genetic covariances among pollination and mating-system traits in the common morning glory (Ipomoea purpurea) is increasingly constraining evolutionary trajectories. Pollinator-attracting traits evolved or became more favored on a rapid time scale of less than ten years, but genetic covariances between traits limited the adaptive rate and evolutionary trajectory of flowering phenology.

Linked claims

Claim	Direction	Relevance	Steps	Counted
13374baa	SUPPORT	DIRECT	0	yes

Audits

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