Wild cotton genome sequenced
Monsanto and US genomics company Illumina (San Diego, California) have completed the 880 megabase genome sequence for the wild cotton species, Gossypium raimondii. It is the first cotton species genome sequence to be completed. Researchers are also sequencing the 1.75 gigabase (Gb) genome of another cotton species, G arboretum, otherwise known as tree cotton. They plan to use the G raimondii sequence data as a base to assemble the G arboretum sequence data. This will be used to help construct a map of the much larger and more complex 2.7 Gb genome of domesticated cotton, G hirsutum. Domesticated cotton is a tetraploid species whose progenitors are believed to have been very similar to G raimondii and G arboretum.