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The Proceedings of the National Academy of Sciences has banned a researcher from publishing in the journal for three years, Retraction Watch reports.

The ban comes after Jianghan University's Zhangfeng Hu, the last and corresponding author of a PNAS study that describes a new class of transcription factors, declined to share a strain of algae that was used in the work, it adds. May Berenbaum from PNAS tells Retraction Watch that the journal received a message from a researcher who tried to obtain the algal strain from Hu but was unable to, even after the journal interceded. Berenbaum tells it that that this violates PNAS policy on sharing.

The PNAS paper now has an editorial expression of concern noting that the authors have not shared their mutant strain. "PNAS authors must ensure that all unique reagents described in their published papers are available to qualified researchers, and any restrictions on the sharing of materials must be disclosed to the editorial office at the time of submission," the expression of concern adds.

The Scan

Back as Director

A court has reinstated Nicole Boivin as director of the Max Planck Institute for the Science of Human History, Science reports.

Research, But Implementation?

Francis Collins reflects on his years as the director of the US National Institutes of Health with NPR.

For the False Negatives

The Guardian writes that the UK Health Security Agency is considering legal action against the lab that reported thousands of false negative COVID-19 test results.

Genome Biology Papers Present Epigenetics Benchmarking Resource, Genomic Architecture Maps of Peanuts, More

In Genome Biology this week: DNA methylation data for seven reference cell lines, three-dimensional genome architecture maps of peanut lines, and more.