Comparative block arrangement in (a) the A genome of (A1–A10; present study) and (N1–N10) 16 and (b) the B genome of (B1–B8; present study) and (G1–G8) 18

Blocks identified in only one of the two studies being compared have been highlighted by a grey background. Based on the non-rearranged blocks that flank the centromere in the AK (ancestral karyotype) and At (), the putative centromeric location (represented by solid circles) has been highlighted for the linkage groups wherever possible. New blocks proposed in the present study not shown earlier by Schranz et al. [15] have been marked with an asterisk (*). Blocks with markers from the loci (pericentromeric regions of At) not defined by Schranz et al. [15] have been marked with a question mark (?). Blocks placed within brackets represent insertions within a bigger block.<p><b>Copyright information:</b></p><p>Taken from "Comparative mapping of and using Intron Polymorphism (IP) markers: homoeologous relationships, diversification and evolution of the A, B and C Brassica genomes"</p><p>http://www.biomedcentral.com/1471-2164/9/113</p><p>BMC Genomics 2008;9():113-113.</p><p>Published online 3 Mar 2008</p><p>PMCID:PMC2277410.</p><p></p

Genetic map of showing five linkage groups of the B genome (B1, B2, B3, B4 and B5)

The corresponding nomenclature followed earlier for the B genome of (with a prefix J) [11] and (with a prefix G) [18] is given in parentheses. This new nomenclature for the B genome linkage groups has been designated based on the comparative homoeology discerned between the A, B and C genomes in this study. Each genetic locus bears the name of the At () gene and the colour code of the At chromosome from which it is derived. At loci in italics represent the RFLP probes mapped earlier [11]. Loci marked with an asterisk (*) are derived from multicopy At genes [28]. Loci in black represent markers of the framework map [11]. The organization of the LGs based on the genomic blocks identified by Schranz et al. [15] has been represented on the left of each linkage group. The genomic blocks have been coloured differently based on the five At chromosomes from which they originate. Single copy At loci from different blocks mapped as unique insertions are shown in lower case on the right of each genomic block.<p><b>Copyright information:</b></p><p>Taken from "Comparative mapping of and using Intron Polymorphism (IP) markers: homoeologous relationships, diversification and evolution of the A, B and C Brassica genomes"</p><p>http://www.biomedcentral.com/1471-2164/9/113</p><p>BMC Genomics 2008;9():113-113.</p><p>Published online 3 Mar 2008</p><p>PMCID:PMC2277410.</p><p></p

The block arrangements in the A and B genomes are based on the consensus block arrangement of the A genomes of (A1–A10; present study) and (N1–N10) 16 and the B genomes of (B1–B8; present study) and (G1–G8) 18

The C genome is based on the map (N11–N19) [16]. The original nomenclature of the 2 LGs of the C genome (N16 and N17) and all the LGs of the B genome (G1–G8) have been shown in parentheses with the re-designated nomenclature. Certain single gene insertions were considered as putative blocks (marked with asterisk) if a similar block was found present at the corresponding region in the homoeologous chromosome. Filled bars represent the common blocks shared between all the three members of the group. Large gaps (≥10 cM regions devoid of any markers) in the LGs have been depicted by hatched boxes. Arrows represent the orientation of the gene order (within the block) with respect to the corresponding regions in At.<p><b>Copyright information:</b></p><p>Taken from "Comparative mapping of and using Intron Polymorphism (IP) markers: homoeologous relationships, diversification and evolution of the A, B and C Brassica genomes"</p><p>http://www.biomedcentral.com/1471-2164/9/113</p><p>BMC Genomics 2008;9():113-113.</p><p>Published online 3 Mar 2008</p><p>PMCID:PMC2277410.</p><p></p

Genetic map of showing three linkage groups of the B genome (B6, B7 and B8)

The corresponding nomenclature followed earlier for the B genome of (with a prefix J) [11] and (with a prefix G) [18] is given in parentheses. This new nomenclature for the B genome linkage groups has been designated based on the comparative homoeology discerned between the A, B and C genomes in this study. Each genetic locus bears the name of the At () gene and the colour code of the At chromosome from which it is derived. At loci in italics represent the RFLP probes mapped earlier [11]. Loci marked with an asterisk (*) are derived from multicopy At genes [28]. Loci in black represent markers of the framework map [11]. The organization of the LGs based on the genomic blocks identified by Schranz et al. [15] has been represented on the left of each linkage group. The genomic blocks have been coloured differently based on the five At chromosomes from which they originate. Single copy At loci from different blocks mapped as unique insertions are shown in lower case on the right of each genomic block.<p><b>Copyright information:</b></p><p>Taken from "Comparative mapping of and using Intron Polymorphism (IP) markers: homoeologous relationships, diversification and evolution of the A, B and C Brassica genomes"</p><p>http://www.biomedcentral.com/1471-2164/9/113</p><p>BMC Genomics 2008;9():113-113.</p><p>Published online 3 Mar 2008</p><p>PMCID:PMC2277410.</p><p></p