Endophyte genomes undergo CpG methylation, while prokaryotic genomes do not, making it easy to sequence either of these along with
the particular plant genome (s) of interest.
Not exact matches
Over the longer term, the identification of the coffee tree
genome sequence opens up new possibilities for varietal improvement, knowledge of the specific functions of the genes (in
particular those specific to coffee trees), the possibility of transferring results to other species, and refining diagnostic tools for the function of the
plant.
As more such species are sequenced, he says, «everyone will be using these»
genomes to find out which genes are responsible for
particular functions, especially for
plant pathogens such as Fusarium, which causes ear rot in corn and puts out mycotoxins in animal feed.
By comparing the
genomes of flood - tolerant
plants, the researchers were able to pin down the resistance to a
particular region of the
plant genome, which they dubbed Submergence 2.
However, since
plant tissues harbor three separate
genomes (nuclear, chloroplast, and mitochondrial), it can often be challenging to isolate the
particular genome of interest from extracted DNA samples.
«The epigenetic change revealed may be inscribed on the entire
genome, on a
particular locus, or on the transgene of the treated
plants,» the researchers speculate in the paper presenting the finding, published online yesterday in Nature.
Nosil and his colleagues sequenced the
genomes of dozens of individuals of each ecotype from multiple hillsides to assess the genetic differences that arose to make them specialized for their
particular host
plant.