Open AccessChromosome polymorphism in species of the genus Hedysarum L. (Fabaceae) originated from Southern Sibеria
Author(s) -
Olga Yu. Yurkevich,
Tatiana E. Samatadze,
I. Yu. Selyutina,
Svetlana I. Romashkina,
Svyatoslav A. Zoshchuk,
Аlexandra V. Amosova,
О. В. Муравенко
Publication year - 2020
Publication title -
problemy botaniki ûžnoj sibiri i mongolii
Language(s) - English
Resource type - Journals
eISSN - 2686-9268
pISSN - 2313-3929
DOI - 10.14258/pbssm.2020003
Subject(s) - biology , fabaceae , karyotype , locus (genetics) , chromosome , genetics , genus , chromosomal polymorphism , botany , gene
For the first time, chromosomal polymorphism in karyotypes of three species from the section Hedysarum (= syn. Gamotion) of the genus Hedysarum L. (Fabaceae) grown in Southern Siberia has been studied with the useof molecular cytogenetic markers. This comparative molecular cytogenetic analysis revealed high similarity in morphology of chromosomes in H. alpinum L., H. austrosibiricum B. Fedtsch. and H. theinum Krasnob. as well as in patterns ofdistribution of 45S and 5S rDNA loci in their karyotypes confirming their close relationships. Considerable intra-specificpolymorphism on 45S rDNA chromosome localization was detected in H. theinum. In karyotype of H. alpinum, unlikethe other two species, two chromosome pairs bearing 5S rDNA locus were observed which could be used as additionalspecies-specific markers.