MEIOTIC CHROMOSOME BEHAVIOR IN CENCHRUS-CILIARIS (POACEAE, PANICOIDEAE)

Authors
VISSER NC SPIES JJ VENTER HJT
Citation
Nc. Visser et al., MEIOTIC CHROMOSOME BEHAVIOR IN CENCHRUS-CILIARIS (POACEAE, PANICOIDEAE), Bothalia, 28(1), 1998, pp. 83-90
Citations number
10
Categorie Soggetti
Plant Sciences
Journal title
Bothalia → ACNP
ISSN journal
00068241
Volume
28
Issue
1
Year of publication
1998
Pages
83 - 90
Database
ISI
SICI code
0006-8241(1998)28:1<83:MCBIC(>2.0.ZU;2-N
Abstract
A basic chromosome number of x = 9 has been confirmed for Cenchrus cil iaris L. Polyploidy is common and levels vary from tetraploid to hexap loid. Aneuploidy is reported for a single specimen, where two chromoso mes of a single genome were lost. Various meiotic irregularities were observed. The highest incidence of meiotic abnormalities was observed in the pentaploid specimens. This was attributed to their uneven polyp loid level. All specimens varied from segmental alloploid to alloploid .