We have made the world's most detailed molecular map of the cotton genome, and
have applied the map to gain a better understanding of many traits important to
domestication and improvement of CottonFiber. Some of our present activities include:
- We have assembled a 'consensus' genetic map from the most detailed diploid and tetraploid
maps (respectively) that we know of, to one another and also to the Arabidopsis genome sequence
(Rong et al 2005, Genome Research 15:1198-1210). In addition, we have aligned 11 additional
lower-density maps and 432 QTLs associated with these maps, permitting meta-analysis of the QTL
landscape of cotton for a number of traits (especially fiber-related ones)
(Rong et al 2007, Genetics 176:2577-88). These resources are available from
our CMAP site.
- Building a physical map of cotton that is suitable as a framework for
sequencing the cotton genome (see PGML Cotton Genome Database
- Better understanding how genetic diversity is arranged in the cotton genome,
and how different measures of diversity are interrelated.
- Partnering with breeders to bring new diversity into the cotton gene pool
from wild relatives, taking advantage of natures solutions to many problems that
face cotton producers.
- Better understanding the role of polyploidy in the evolution of productive