HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Harlan, J. R. Articles by Richardson, W. L. Search for Related Content PubMed Articles by Harlan, J. R. Articles by Richardson, W. L. Agricola Articles by Harlan, J. R. Articles by Richardson, W. L.

Cytogenetic Studies in Cynodon L. C. Rich. (Gramineae)¹

In a biosysteiriatic analysis of Cynodon over 700 interspecific and nearly 2,000 intervarietal hybrids were produced. C. barberi, C. arcuatus, and C. plectostachyus proved to be completely isolated from each other and the rest of the genus. C. aethiopicus could be crossed with C. dactylon and C. nlemfuensis, but with great difficulty. Hybrids between the remainder of the taxa could be produced more easily and the chromosome behavior of these hybrids is reported. In all crosses between diploid taxa, the most common configuration is nine pairs. The most common configuration in triploid hybrids is nine pairs and nine univalents regardless of the parentage. Chromosome pairing in tetraploid hybrids is variable. There is little or no genome differentiation among the species that can be crossed. The evidence is discussed with respect to a recent revision of the genus.

Key Words: Interspecific hybridization • Chromosome pairing • Taxonomy of Cynodon • Genome analysis

² Professor Plant Genetics, Professor Cytogenetics, Research Assistant, Agronomy Department, University of Illinois, Urbana, 111. 61801; and former Research Assistant (now Research Asociate, Plant Research Laboratory, Michigan State University, East Lansing, Michigan), Assistant Professor, Oklahoma State University, Stillwater, Okla., respectively.

Received for publication November 3, 1969.

This article has been cited by other articles:

				Y. Q. Wu, C. M. Taliaferro, G. H. Bai, D. L. Martin, J. A. Anderson, M. P. Anderson, and R. M. Edwards Genetic Analyses of Chinese Cynodon Accessions by Flow Cytometry and AFLP Markers Crop Sci., February 24, 2006; 46(2): 917 - 926. [Abstract] [Full Text] [PDF]