Comparison of C-banded chromosomes in karyotypes of three species of the genus Matricaria L.

Comparison of C-banded chromosomes were studied in karyotypes of two relate d wild species. Matricaria maritima L. (2n = 2x = 18) and M. inodora L. (2n = 4x = 36), and compared with that of cultivated M. chamomilla L. All nine pairs of homologous chromosomes were identified in their genomes on the ba sis of chromosome morphology and C-banding patterns. Similarity of the C-ba nding patterns of diploid M. maritima and tetraploid M. inodora chromosomes and a law level of intra- and interspecific C-banding polymorphism was dis covered. Two similar subgenomes were revealed in the karyotype of a tetrapl oid M. inodora L,, which indicates its autopolypioid origin. Differentiatio n of subgenomes was detected in this species. We suggested that the chromos omes of tetraploid and diploid species belong to the same genome. Compariso n of karyotypes of two wild species with the M-ch genome chromosomes of Mat ricaria chamomilla L., which was studied by us earlier, allowed us to concl ude that their genomes are not identical. Genome that is common for M. mari tima L. and M. inodora L. was designated M-m.