Title: Karyology of Plagiomnium. I. Plagiomnium affine [Schrad.] T.Kop.
Abstract:Abstract Variability in chromosome numbers of Plagiomnium affine from five populations in Poland was found with n = 6, 7, 12 and 18. Three populations showed intrapopulation karyological variability (...Abstract Variability in chromosome numbers of Plagiomnium affine from five populations in Poland was found with n = 6, 7, 12 and 18. Three populations showed intrapopulation karyological variability (n = 6, 12, 18), two others were karyologically uniform (n = 6). Additionally, mixoploidy was noted with haploid (n = 6, 7), haploid-diploid (n = 6, 12) and haploid-diploid-polyploid (n = 6, 12, 18) cells in one gametophytic apex.The haploid set consists of two chromosome types: metacentric and submetacentric. Their frequency in particular metaphase plates was different. Variation in karyotype was discovered within the population and among populations. Four types of karyotype were distinguished: 4m + 2sm, 3m + 3sm, 5m + 1sm, 2m + 4sm.The C-banding demonstrated one chromosome with a large telomeric heterochromatin block and one intercalary band. This chromosome was the fifth in the haploid complement according to chromosome length and was the only chromosome marker that is easy to identify in the C-banded karyo...Read More
Publication Year: 2001
Publication Date: 2001-01-01
Language: en
Type: article
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