You are not currently logged in.
Access JSTOR through your library or other institution:
If You Use a Screen ReaderThis content is available through Read Online (Free) program, which relies on page scans. Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Some Pieces of the African Genome Puzzle in Hibiscus Sect. Furcaria (Malvaceae)
M. Y. Menzel, S. G. Goetz and W. C. Adamson
American Journal of Botany
Vol. 70, No. 2 (Feb., 1983), pp. 285-297
Published by: Botanical Society of America, Inc.
Stable URL: http://www.jstor.org/stable/2443274
Page Count: 13
You can always find the topics here!Topics: Genomes, Hybridity, Species, Diploidy, Pollen, Tetraploidy, Plants, Plant morphology, Bracts, Chromosomes
Were these topics helpful?See something inaccurate? Let us know!
Select the topics that are inaccurate.
Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Preview not available
New chromosome counts are reported for four African diploid species of Hibiscus L. sect. Furcaria DC.: H. greenwayi Bak. f., H. hiernianus Exell et Mendonca, and H. mechowii Garcke, n = 18; and H. berberidifolius A. Rich., 2n = 36. Chromosome behavior is described in seven new hybrid combinations. Hibiscus greenwayi is shown to carry an A genome. Hibiscus hiernianus and H. mastersianus have similar genomes which are not homologous with that of H mechowii. New and earlier data are integrated to elucidate genome relationships among 13 taxa-each of the four tetraploid species has a different formula encompassing 2 of 6 mutually nonhomologous genomes, A, B, G, H, X and Y (H. acetosella Welw. ex Hiern = AABB; H. meeusei Exell = AAXX; H. sabdariffa L. = AAYY; H. rostellatus Guill. et Perr. = GGHH). Diploid donors of A, B, G, X and Y are proposed on the basis of plant, flower and pollen morphology. Diploid carriers of A (H. asper Hook. f., H cannabinus L., H greenwayi), B (H. surattensis L.) and G (H. sudanensis Hochr.) have been verified cytologically. Cytological confirmation of X (H. hiernianus, H. mastersianus Hiern) and Y (H mechowii) carriers is incomplete. No putative diploid carrier of H is at hand. Genome affinities of H berberidifolius are unknown.
American Journal of Botany © 1983 Botanical Society of America, Inc.