The presence of synaptic and chromosome disjunction mutants in Cenchrus ciliaris (Poaceae: Paniceae)

Bothalia - African Biodiversity & Conservation

 
 
Field Value
 
Title The presence of synaptic and chromosome disjunction mutants in Cenchrus ciliaris (Poaceae: Paniceae)
 
Creator Visser, N. C. Spies, J. J. Venter, H. J. T.
 
Subject — asynapsis; desynapsis; meiosis; precocious chromatid segregation; synaptic mutants
Description Synaptic mutants are present in  Cenchrus ciliaris L This species, due to the presence of linear bivalents and occasion­al trivalents and quadrivalents, is an intermediate desynaptic species. In addition, geographical distribution and environmental factors, such as high temperatures and low humidity, could also have had an influence on the desynapsis observed.The disjunction of chromosomes during anaphase I was mostly abnormal in this desynaptic species. Precocious disjunction of chromosomes into chromatids occurred during anaphase I Due to the high incidence of this chromosome abnormality, a mutant gene,  'pc'  responsible for the disjunction of chromosomes, must be present. The absence of cytokinesis in one specimen indicates a recessive mutant gene,  'va' to be active in this species.
 
Publisher AOSIS
 
Contributor
Date 1999-10-01
 
Type info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion — —
Format application/pdf
Identifier 10.4102/abc.v29i2.604
 
Source Bothalia; Vol 29, No 2 (1999); 327-334 2311-9284 0006-8241
 
Language eng
 
Relation
The following web links (URLs) may trigger a file download or direct you to an alternative webpage to gain access to a publication file format of the published article:

https://journals.abcjournal.aosis.co.za/index.php/abc/article/view/604/549
 
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Rights Copyright (c) 1999 N. C. Visser, J. J. Spies, H. J. T. Venter https://creativecommons.org/licenses/by/4.0
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