TY - JOUR A1 - Vandepoele, Klaas A1 - Saeys, Yvan A1 - Simillion, Cedric A1 - Raes, Jeroen A1 - Van de Peer, Yves T1 - The Automatic Detection of Homologous Regions (ADHoRe) and Its Application to Microcolinearity Between Arabidopsis and Rice Y1 - 2002/11/01 JF - Genome Research JO - Genome Research SP - 1792 EP - 1801 DO - 10.1101/gr.400202 VL - 12 IS - 11 UR - http://genome.cshlp.org/content/12/11/1792.abstract N2 - It is expected that one of the merits of comparative genomics lies in the transfer of structural and functional information from one genome to another. This is based on the observation that, although the number of chromosomal rearrangements that occur in genomes is extensive, different species still exhibit a certain degree of conservation regarding gene content and gene order. It is in this respect that we have developed a new software tool for the Automatic Detection of Homologous Regions (ADHoRe). ADHoRe was primarily developed to find large regions of microcolinearity, taking into account different types of microrearrangements such as tandem duplications, gene loss and translocations, and inversions. Such rearrangements often complicate the detection of colinearity, in particular when comparing more anciently diverged species. Application of ADHoRe to the complete genome of Arabidopsis and a large collection of concatenated rice BACs yields more than 20 regions showing statistically significant microcolinearity between both plant species. These regions comprise from 4 up to 11 conserved homologous gene pairs. We predict the number of homologous regions and the extent of microcolinearity to increase significantly once better annotations of the rice genome become available. ER -