Fig. 2: Characterization of the peanut genome and chromosomes. | Nature Genetics

Fig. 2: Characterization of the peanut genome and chromosomes.

From: The genome of cultivated peanut provides insight into legume karyotypes, polyploid evolution and crop domestication

Fig. 2

a, Circos diagram depicting relationships of A and B subgenome chromosomal pseudomolecules. The scale for the chromosomes (outer bars) is megabases; colors represent the density of nonautonomous LTR retrotransposons and Ty3-gypsy elements (blue) and genes (green). Homeologous blocks of ≥30 gene pairs between Chr01–Chr10 and Chr11–Chr20 (A01–A10 and B01–B10, respectively) are connected with lines. b, Syntenic comparisons between peanut subgenomes and diploid A and B genomes. The outer three circles are chromosomes, density of genes and of Ty3-gypsy and nonautonomous LTR retrotransposons (as shown in a). Colored lines connect blocks with ≥30 orthologous gene pairs between the A and B subgenomes and A. duranensis and A. ipaensis genomes, respectively, based on BLASTN. c, Alignment of diploid peanut A03 and B03 contigs to corresponding tetraploid chromosomes, with parameters: -a 8 -p blastn -m 9 -e 1e-10. The best hits with alignment length ≥2,000 bp were plotted. Translocation between chromosomes A03 and B03 is evident in cultivated peanut. d, Eleven-genome alignment using co-linear genes, each mapped onto the barrel medic chromosomes. A, A. hypogaea A; B, A. hypogaea B; C, C. cajan; D, A. duranensis; E, C. arietinum; G, G. max; I, A. ipaensis; L, L. japonicus; M, M. truncatula; P, P. vulgaris; R, V. radiata; U, V. angularis.

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