Applying new tools for carrot breeding
SBC’s Allen Van Deynze
continues to work with Philip Simon
(USDA/ARS, Wisconsin) and an international industry consortium (Bejo, Nunhems, Rijk Zwaan,Takii and Vilmorin) to develop and apply new tools for carrot breeding. In 2013, analyses of 192 diverse carrot lines from around the world genotyped with 4,000 SNPs reveals that domesticated carrots from the East and West have a common ancestor in Asian carrot and that there does not seem to be a genetic bottleneck between wild and domesticated carrots based on the same level of diversity among and within these groups (Iorizzo et al., 2013). The consortium has expanded to also include Carosem, Monsanto and Sumika to sequence the carrot genome, taking advantage of the partnership between UC Davis and BGI. The genome sequence was completed in 2013 by integrating information from BAC-ends, anchoring to high density genetic maps and annotating the genes present. Several projects are already leveraging this resource. The quality of the genome is one of the best to date. It will be published in 2015.