Posted: June 14, 2021

The Schatz Center for Tree Molecular Genetics, in collaboration with the HudsonAlpha Institute for Biotechnology, has assembled the genome for the tree species Quercus rubra. The genome was released to the public on June 8, 2021 (https://phytozome-next.jgi.doe.gov/info/Qrubra_v2_1).

The Northern red oak reference tree (right) sequenced by Penn State University and the HudsonAlpha Institute for Biotechnology and its grandparent trees (left) at Purdue University (courtesy Jeanne Romero-Severson.

The Northern red oak reference tree (right) sequenced by Penn State University and the HudsonAlpha Institute for Biotechnology and its grandparent trees (left) at Purdue University (courtesy Jeanne Romero-Severson.

The Schatz Center for Tree Molecular Genetics collaborated with the HudsonAlpha Institute for Biotechnology in Huntsville, AL, to sequence and assemble a complete genome for the species Quercus rubra. Northern red oak is a hardwood tree that is both economically and ecologically important, occurring in large native populations across eastern and central United States and Canada.  The tree selected for genome sequencing is from a unique three-generation pedigree at Purdue University.  The genetic linkage map for this pedigree was published by Konar et al, in 2017 (doi: 10.1186/s12864-017-3765-8). 

A high-quality version of the 12 chromosome sequences totaling 763 Mb was released to the public on June 8, 2021 via the US Department of Energy's plant genome website Phytozome (https://phytozome-next.jgi.doe.gov/info/Qrubra_v2_1). This was produced with support from a McIntire-Stennis grant to J Carlson (USDA NIFA Accession # 1020603) and made available by the US Department of Energy Joint Genome Institute. The web site for the in the Northern red oak genome at Phytozome 13 includes a browser for each chromosome with the positions of over 20,600 genes shown in the genome along with predicted transcripts and proteins. 

A manuscript reporting structural and genetic features of the genome is being prepared for publication.

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