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Comparison of the Giemsa C‐banded karyotypes of Hystrix coreana and H. patula (Poaceae, Triticeae)
Author(s) -
Baden Claus
Publication year - 1998
Publication title -
nordic journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.333
H-Index - 33
eISSN - 1756-1051
pISSN - 0107-055X
DOI - 10.1111/j.1756-1051.1998.tb01104.x
Subject(s) - biology , hystrix , karyotype , triticeae , botany , constitutive heterochromatin , heterochromatin , chromosome , zoology , genetics , gene , genome
The karyotypes of Hystrix coreana from eastern USSR and H. patula from USA were investigated by Giemsa C‐banding. Both species are outbreeders and have 2n = 4x = 28. The karyotype of two plants of H. coreana has 10 metacentric, 6 submetacentric, 8 heterobrachial and 4 SAT chromosomes; two plants differed by having 12 metacentric, 4 submetacentric, 8 heterobrachial and 4 SAT‐chromosomes, and 10 metacentric, 4 submetacentric, 9 heterobrachial and 5 SAT‐chromosomes, respectively. The C‐banding pattern had no or few inconspicuous intercalary bands, but conspicuous telomeric C‐bands in one or both arms giving a high content of heterochromatin (16.3–18.2%). The chromosome complement of one plant of H. patula had 8 metacentric, 6 submetacentric, 8 heterobrachial and 6 SAT‐chromosomes. The C‐banding pattern had between 1 and 4 intercalary or centromeric bands and conspicuous telomeric bands on one or both arms giving a high content of constitutive heterochromatin (16.4%).