Cytogenetic Analyses of Astragalus Species
2006
Kim, S.Y. (Chungnam National University, Daejeon, Republic of Korea) | Choi, H.W. (Chungnam National University, Daejeon, Republic of Korea) | Kim, C.S. (Warm-Temperate Forest Research Center, Korea Forest Research Institute, Jeju, Republic of Korea) | Sung, J.S. (National Institute of Crop Science, RDA, Suwon, Republic of Korea) | Lee, J.K. (Korea Research Institute of Bioscience and Biotechnology, Daejeon, Republic of Korea) | Bang, J.W. (Chungnam National University, Daejeon, Republic of Korea), E-mail: bangjw@cnu.ac.kr
To elucidate cytogenetic differences, karyotype analysis and FISH (fluorescence in situ hybridization) with 45S and 5S rDNAs were carried out in the three Astragalas species: Astragalas membranaceus Bunge, A. membranaceus var. alpinus Nakai and A. mongholicus Bunge. The somatic metaphase chromosome numbers of all three species were 2n = 2x = 16 and the size of chromosomes ranged 2.19~5.73 ㎛. The chromosome complement of A. membranaceus consisted of each four pairs of metacentrics (chromosomes 3, 4, 6 and 7) and submetacentrics (chromosomes 1, 2, 4 and 8).
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