Cytogenetic studies in some representatives of the subfamily Pooideae (Poaceae) in South Africa. 1. The tribe Aveneae, subtribe Aveninae

This is a report on chromosome numbers for 14 species of the subtribe Aveninae. which is largely naturalized in South Africa. This is the first chromosome number report for Helictotrichon longifolium (Nees) Schweick. (n = 14). H. longum (Stapf)Schweick. (n = 14). H. namaquensis Schweick. (n = 14) an...

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Published inBothalia Vol. 26; no. 1; pp. 53 - 61
Main Authors Spies, J.J, Spies, S.K, Van Wyk, S.M.C, Malan, A.F. (Orange Free State Univ., Bloemfontein (South Africa). Dept. of Botany and Genetics), Liebenberg, E.J.L
Format Journal Article
LanguageEnglish
Published South African National Biodiversity Institut 01.05.1996
Subjects
AFRIQUE DU SUD
Aveneae
CHROMOSOME
CHROMOSOMES
CITOGENETICA
CROMOSOMAS
CYTOGENETICS
CYTOGENETIQUE
GRAMINEAE
MEIOSE
MEIOSIS
Poaceae
POLIPLOIDIA
POLYPLOIDIE
POLYPLOIDY
Pooideae
SOUTH AFRICA
SUDAFRICA
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Summary:This is a report on chromosome numbers for 14 species of the subtribe Aveninae. which is largely naturalized in South Africa. This is the first chromosome number report for Helictotrichon longifolium (Nees) Schweick. (n = 14). H. longum (Stapf)Schweick. (n = 14). H. namaquensis Schweick. (n = 14) and Lophochloa cristata (L.) Hyl. (n = 7, 21/2. 14). The subtribe has a basic chromosome number of seven, and fewer ploidy levels occur in the naturalized species in South Africa than in the same species in other parts of the world. All tetraploid specimens were alloploids.
Bibliography:F30
9600615
ISSN:0006-8241
2311-9284
DOI:10.4102/abc.v26i1.690