Chromosome numbers in Compositae, XII, Heliantheae

Related Titles

Related/Analytical: Heliantheae

Series: Smithsonian contributions to botany, no. 52

By

Robinson, Harold Ernest, 1932-

Type

Book

Material

Published material

Publication info

Washington, Smithsonian Institution Press, 1981

Notes

Chromosome reports are provided for 145 populations, including first reports for 33 species and three genera, Garcilassa, Riencourtia, and Helianthopsis. Chromosome numbers are arranged according to Robinson's recently broadened concept of the Heliantheae, with citations for 212 of the ca. 265 genera and 32 of the 35 subtribes. Diverse elements, including the Ambrosieae, typical Heliantheae, most Helenieae, the Tegeteae, and genera such as Arnica from the Senecioneae, are seen to share a specialized cytological history involving polyploid ancestry. The authors disagree with one another regarding the point at which such polyploidy occurred and on whether subtribes lacking higher numbers, such as the Galinsoginae, share the polyploid ancestry. Numerous examples of aneuploid decrease, secondary polyploidy, and some secondary aneuploid decreases are cited. The Marshalliinae are considered remote from other subtribes and close to the Inuleae. Evidence from related tribes favors an ultimate base of X = 10 for the Heliantheae and at least the subfamily Asteroideae.

Subjects

Compositae , Genetics , Plant chromosome numbers , Plant cytotaxonomy

Call Number

QK1 .S2747 no. 52

Language

English

Identifiers

DOI: https://doi.org/10.5962/bhl.title.131634
GPO: 910-E (microfiche)
LCCN: https://lccn.loc.gov/81607855
OCLC: 7577034
Wikidata: https://www.wikidata.org/entity/Q51406741