Genotyping by sequencing reveals the interspecific C. maxima / C. reticulata admixture along the genomes of modern citrus varieties of mandarins, tangors, tangelos, orangelos and grapefruits
Fig 4
Identification of interspecific introgressions in accessions representative of ancestral taxa: Example of the “Ponkan” variety for chromosome II.
A: observed heterozygosity (gray), similarity with centroids of mandarins (red) and pummelos (blue); windows of 20 markers (GST1>0.5) B: proportion of C. reticulata/C. maxima diagnostic polymorphisms in homozygosity for C. reticulata (red), for C. maxima (blue) and interspecific heterozygosity (purple). C: deduced phylogenomic structure of Ponkan mandarin chromosome II (red: C. reticulata homozygosity; blue: C. maxima homozygosity; purple: C. maxima/C. reticulata heterozygosity).