Original Research

Embryo sac development in some representatives of the tribe Cynodonteae (Poaceae)

A. Strydom, J. J. Spies
Bothalia | Vol 24, No 1 | a758 | DOI: https://doi.org/10.4102/abc.v24i1.758 | © 1994 A. Strydom, J. J. Spies | This work is licensed under CC Attribution 4.0
Submitted: 09 October 1994 | Published: 10 October 1994

About the author(s)

A. Strydom, Department of Botany and Genetics, University of the Orange Free State, South Africa
J. J. Spies, Department of Botany and Genetics, University of the Orange Free State, South Africa

Full Text:

PDF (848KB)

Abstract

Chloris virgata Sw., Cynodon dactylon (L.) Pers., Harpochloa falx (L. f.) Kuntze, and Tragus berteronianus Schult. have a Polygonum type of embryo sac development. Unreduced embryo sacs were found in Eustachys paspaloides (Vahl) Lanza & Mattei,  Harpochloa falx, and  Rendlia altera (Rendle) Chiov. Both facultative and obligate apomixis were observed. The Hieracium type of embryo sac development was observed in the aposporic specimens.


Keywords

apomixis; apospory; Chloridoideae; Cynodonteae; embryo sac development; Poaceae

Metrics

Total abstract views: 2918
Total article views: 3282

 

Crossref Citations

1. Chromosome studies in the grass subfamily Chloridoideae. II. An analysis of polyploidy
Rouvay Roodt, Johan J. Spies
TAXON  vol: 52  issue: 4  first page: 736  year: 2003  
doi: 10.2307/4135546

2. Cell fusion: A possible mechanism for the origin of polyploidy
Johan J. Spies, Susan M.C. van Wyk
South African Journal of Botany  vol: 61  issue: 2  first page: 60  year: 1995  
doi: 10.1016/S0254-6299(15)30480-4

3. Asynchronous expression of duplicate genes in angiosperms may cause apomixis, bispory, tetraspory, and polyembryony
John G. Carman
Biological Journal of the Linnean Society  vol: 61  issue: 1  first page: 51  year: 1997  
doi: 10.1111/j.1095-8312.1997.tb01778.x

4. Reproductive biology of the native forage grass Trichloris crinita (Poaceae, Chloridoideae)
P. C. Kozub, K. Barboza, F. Galdeano, C. L. Quarin, J. B. Cavagnaro, P. F. Cavagnaro, J. Arroyo
Plant Biology  vol: 19  issue: 3  first page: 444  year: 2017  
doi: 10.1111/plb.12549

5. Chromosome studies in the grass subfamily Chloridoideae. I. Basic chromosome numbers
Rouvay Roodt, Johan J. Spies
TAXON  vol: 52  issue: 3  first page: 557  year: 2003  
doi: 10.2307/3647454