The B-Chromosome System ofAllium SphaerocephalonL. (Liliaceae): Types, Effects and Origin
Open Access
- 1 January 1984
- journal article
- research article
- Published by Firenze University Press in Caryologia
- Vol. 37 (3), 259-267
- https://doi.org/10.1080/00087114.1984.10797706
Abstract
Two types of B-chromosomes (acrocentric and submetacentric) were observed in the population of Allium sphaerocephalon L. (Liliaceae) analyzed in this report. The submetacentric B-chromosome is an iso-B and the acrocentric B displays nucleolar activity. The B-chromosomes of this species caused a significant increase in the between-cells variance of chiasmata. The possible origin of these B-chromosomes is discussed in relation to several detected chromosome rearrangements (reciprocal unequal translocation and centric fission).This publication has 7 references indexed in Scilit:
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