Search Results

You are looking at 1 - 10 of 843 items for :

  • genome size x
  • Refine by Access: All x
Clear All
Open access

William G. Hembree, Thomas G. Ranney, Nathan P. Lynch, and Brian E. Jackson

Fendlerella, also of Philadelpheae, have a base chromosome number of x = 13 ( Sax, 1931 ; Ward, 1984 ). Table 1. Previous cytological reports for Deutzia species. Genome size (DNA content) can reflect biodiversity, genome evolution, and taxonomic

Free access

A. Lane Rayburn, Mosbah M. Kushad, and Wanisari Wannarat

Changes in cellular parameters that are brought about by variations in genome size are referred to as nucleotypic effects ( Bennett, 1972 ; Rayburn, 1993a ). Nucleotypic effects have been observed in various plant species ( Bennett, 1976 ; Chung

Free access

Thomas G. Ranney, Connor F. Ryan, Lauren E. Deans, and Nathan P. Lynch

traits of early angiosperms ( Morris et al., 2007 ; Soltis et al., 2009 ). Chromosome numbers and nuclear genome sizes vary widely among angiosperms. The original base chromosome number of the angiosperm linage was most likely somewhere between x = 6

Free access

Ryan N. Contreras and John M. Ruter

stems for the florist's trade ( Bir and Conner, 1997 ; Greer and Dole, 2009 ). In recent years, there has been an increase in the number of genome size estimates available for both plants and animals ( Bennett and Leitch, 2005 ; Gregory, 2005 ). For

Free access

Dominic A. Gillooly and Thomas G. Ranney

sampling within and among species and can provide accurate estimates of ploidy, particularly for Ericaceous plants ( Jones et al., 2007 ). The objective of this study was to survey genome sizes and ploidy levels of a broad range of species, hybrids, and

Full access

William G. Hembree, Thomas G. Ranney, Brian E. Jackson, and Mark Weathington

have not been analyzed for ploidy or genome size. Improved knowledge of chromosome numbers and ploidy levels of key species and cultivars would be a valuable resource for further breeding and improvement of Camellia . Analyses of other closely related

Free access

Alan T. Whittemore and Zheng-Lian Xia

additional trees with known chromosome numbers will give us a firmer understanding of variation in genome size. In addition, a broad survey of nuclear DNA content in Ulmus and related genera using flow cytometry could provide more information on the

Free access

Saadat Sarikhani Khorami, Kazem Arzani, Ghasem Karimzadeh, Abdolali Shojaeiyan, and Wilco Ligterink

with desirable characterization. In addition to nucleotide sequences, genetic diversity also refers to variation in the chromosomes and genome size ( Bhat and Kudesia, 2011 ). Therefore, cytological studies can be powerful tools to evaluate walnut

Free access

Sumin Kim, Mengqiao Han, and A. Lane Rayburn

size variation was not observed by the previous study ( Ladizinsky and Adler, 1976 ). This leads to speculation that there may be errors in reporting genome size variation in the genus Cicer. Giving credence to this hypothesis is that two different 2C

Free access

J. Kevin Parris, Thomas G. Ranney, Halina T. Knap, and W. Vance Baird

, traditional cytology based on light microscopic examination is a difficult and time-consuming process. Flow cytometry has proved to be an efficient means of estimating genome size and associated ploidy level ( Doležel et al., 2007 ; Jones et al., 2007