Drs. Casola and Koralewski co-author a paper on the Douglas-fir genome sequencing and analysis

Dr. Claudio Casola, assistant professor in the Ecosystem Science and Management Department at Texas A&M University, and Dr. Tomasz Koralewski, postdoctoral research associate in the Casola’s lab, co-authored the article "The Douglas-Fir Genome Sequence Reveals Specialization of the Photosynthetic Apparatus in Pinaceae” published online on July 27 in the journal G3 (http://www.g3journal.org/content/early/2017/07/26/g3.117.300078)”.

The study describes the sequencing, assembly and analysis of the first Douglas-fir genome. Drs. Casola and Koralewski discovered that genes are duplicated and lost at a surprisingly high pace in Douglas-fir and other Pinaceae genome. They also found that genetic networks associated with phloem defense mechanisms have expanded during the evolution of the Douglas-fir, whereas several genes involved in photosynthesis have been lost in this species. These genetic changes are likely involved in the emergence of traits that enabled adaptation of Douglas-fir trees to their environment.