C-band polymorphism in the karyotype of Paris tetraphylla A. Gray (Liliaceae).

C-band Polymorphism in Paris tetraphylla Chromosomes in Four Populations of Kumamoto Prefecture.

“…The supernumerary chromosome found in this study was coincident with ones of the previous reports on the morphology and C-banding positive nature (Haga 1961, Kayano 1961, Miyamoto and Kurita 1990. The intra-individual variation of the number of supernumeraries was already found (Haga op cit.)…”

“…3). Miyamoto and Kurita (1990) analyzed the 692 plants from 38 localities of Hokkaido to Yakushima and found 3 types in chromosome A, 5 in B, 4 in C, 2 in D and 4 in E. In comparing these results, though the numbering systems are different from each other, 12 types of A3, A4, A5, B3, B4, B5, C3, D1, D3, D4, E4 and E5 were newly found in this study. The difference in the number of chromosome types between the two data sets might be due to the difference of materials, ovules and root-tips, and/or analyzed populations.…”

“…Thus, the frequency of various chromosome types due to C-bands might be different according to the adaptability for environmental conditions including vegetation among the populations. Miyamoto and Kurita (1990) found in this species that several chromosome types were localized in specific geographic regions . In Trillium kamtschaticum being the relative species of Paris, also, various chromosome types revealed by the cold-sensitive heterochromatin differentiate geographically in their occurrence (Haga and Kurabayashi 1954, Fukuda and Kozuka 1958, Kurabayashi 1958, Haga 1974.…”

“…Paris tetraphylla, in any case, was chromosomally highly polymorphic as to the patterns of C-banded segments; 6 types in chromosome A, 8 in B, 5 in C and D, and 6 in E in a total of the two data (Fig. 3, Miyamoto and Kurita 1990).…”

C-banding Patterns in Eighteen Taxa of the Genus Paris sensu Li, Liliaceae.

“…positive heterochromatin blocks were detected in P. tetraphylla and P. verticillata, and some of these were shown to be species-specific C-bands (Miyamoto andKurita 1990, Miyamoto et al 1991).…”