In:
Caryologia, Firenze University Press, Vol. 75, No. 1 ( 2022-07-07), p. 165-171
Abstract:
In metaphase I, autosomal bivalents align on the metaphase plate, while naturally-occurring univalent sex chromosomes can display a number of different behaviours depending on cellular conditions. Here we describe the behaviour of the univalent X chromosome in the wide-footed treehopper Enchenopa latipes (Say 1824). We confirm the chromosome number and sex determination method for this species, and that males possess a univalent X chromosome. We show that the univalent X chromosome forms a bipolar attachment to the spindle in metaphase I, and then segregates intact toward one spindle pole in late anaphase I (long after autosomes have initiated poleward movement). Movement of the univalent toward one pole is associated with loss of microtubule connections toward the opposite spindle pole.
Type of Medium:
Online Resource
ISSN:
2165-5391
,
0008-7114
DOI:
10.36253/caryologia-1411
Language:
Unknown
Publisher:
Firenze University Press
Publication Date:
2022
detail.hit.zdb_id:
2517146-X
SSG:
12
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