The Genome of Black Cottonwood, Populus trichocarpa (Torr. & Gray)
West Virginia University · Oak Ridge National Laboratory · +14 more institutions
Abstract
We report the draft genome of the black cottonwood tree, Populus trichocarpa. Integration of shotgun sequence assembly with genetic mapping enabled chromosome-scale reconstruction of the genome. More than 45,000 putative protein-coding genes were identified. Analysis of the assembled genome revealed a whole-genome duplication event; about 8000 pairs of duplicated genes from that event survived in the Populus genome. A second, older duplication event is indistinguishably coincident with the divergence of the Populus and Arabidopsis lineages. Nucleotide substitution, tandem gene duplication, and gross chromosomal rearrangement appear to proceed substantially more slowly in Populus than in Arabidopsis. Populus…
Citation impact
- FWCI
- 283.70
- Percentile
- 100%
- References
- 71
Authors
110- GAGerald A. TuskanCorresponding
West Virginia University, Oak Ridge National Laboratory, Umeå Plant Science Centre, University of Tennessee at Knoxville
- SDStephen DiFazioCorresponding
West Virginia University, Oak Ridge National Laboratory, Umeå Plant Science Centre, University of Tennessee at Knoxville
- SJStefan JanssonCorresponding
West Virginia University, Oak Ridge National Laboratory, Swedish University of Agricultural Sciences, Umeå Plant Science Centre, University of Tennessee at Knoxville
- JBJöerg BohlmannCorresponding
West Virginia University, Oak Ridge National Laboratory, Umeå Plant Science Centre, Canada's Michael Smith Genome Sciences Centre, University of Tennessee at Knoxville
- IVIgor V. GrigorievCorresponding
West Virginia University, Oak Ridge National Laboratory, Joint Genome Institute, Umeå Plant Science Centre, University of Tennessee at Knoxville
Topics & keywords
- Populus trichocarpa
- Genome
- Biology
- Arabidopsis
- Gene
- Genetics
- Functional divergence
- Gene duplication
- Life in Land