ISSN:
1573-6857
Schlagwort(e):
Anthonomus grandis
;
C‐banding
;
Coleoptera
;
cotton boll weevil
;
N‐banding
;
restriction enzyme banding
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Biologie
Notizen:
Abstract The diploid chromosome number of the cotton boll weevil, Anthonomus grandis Boheman, is 44. Both C‐ and N‐banding techniques of mitotic cells demonstrated constitutive heterochromatin in the p arm of the eight largest chromosomes, the p arm of the X chromosome, and the centromeric region of autosomal groups A–D. Neither the y nor the group E autosomes appeared to contain constitutive heterochromatin. Supernumerary chromosomes were not found in the boll weevil. Restriction endonuclease banding of primary spermatocytes revealed a rod‐shaped Xy tetrad in which the X and y were terminally associated. The p arm of the large, submetacentric X was C‐band positive. While two of the autosomal tetrads were typically ring‐shaped in primary spermatocytes, the remaining 19 autosomal tetrads were rod‐shaped.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1023/A:1017573403380
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