Skip to page content
USDA Forest Service
  
Treesearch

Research & Development Treesearch

 
Treesearch Home
About Treesearch
Contact Us
Research & Development
Forest Products Lab
International Institute of Tropical Forestry
Northern
Pacific Northwest
Pacific Southwest
Rocky Mountain
Southern Research Station
Help
 

Science.gov - We Participate


USA.gov  Government Made Easy


Global Forest Information Service

US Forest Service
P.O. Box 96090
Washington, D.C.
20090-6090

(202) 205-8333

You are here: Home / Search / Publication Information
Bookmark and Share

Publication Information

View PDF (301 KB)

Title: Morphological and Cytomolecular Assessment of Intraspecific Variability in Scarlet Eggplant ( Solanum aethiopicum L.)

Author: Sakhanokho, Hamidou F.; Islam-Faridi, M. Nurul; Blythe, Eugene K.; Smith, Barbara J.; Rajasekaran, Kanniah; Majid, M. A.;

Date: 2014

Source: Journal of Crop Improvement 28(4): 437-453

Publication Series: Scientific Journal (JRNL)

Description: Solanum aethiopicum L. is native to sub-Saharan Africa but is now found in many parts of the world. It is used for food, medicinal, and ornamental purposes. It has also been used as a rootstock for tomato and common eggplant because of its resistance to certain pathogens. However, very little is known about its genetics, so the purpose of this work was to assess intraspecific variability in S. aethiopicum via morphological and cytomolecular characterization of 12 scarlet eggplant accessions. Cluster analysis was used for grouping the accessions using means of 27 variables. Four separate groups were found, with two groups each consisting of five accessions and two other groups each consisting of only one accession. Variability was high with flower- and fruit-associated descriptors among the accessions. Monoploid genome sizes (Cx-value), average chromosome sizes (C/n-value), and GC content were determined. Haploid genome size of S. aethiopicum ranged from 1.312 pg/1C to 1.538 pg/1C., which is close to the genome size (1.2 pg/1C) of the common eggplant. Only PI 420226 (1.538 pg/1C) was significantly different from the rest, giving credence to the theory that PI 420226 is actually a S. macrocarpon accession. GC content of S. aethiopicum accessions was about 40%. We used 18S-28S rDNA and 5S rDNA probes to study the distribution and physical position of these ribosomal genes in S. aethiopicum. These results help to better understand intraspecific variability in S. aethiopicum and can be important for the breeding and selection of this crop.

Keywords: Fluorescence in situ hybridization (FISH), Nuclear DNA content, 8S-28S, 5S rDNA, Ethiopian eggplant

Publication Notes:

  • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
  • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

XML: View XML

Citation:


Sakhanokho, Hamidou F.; Islam-Faridi, M. Nurul; Blythe, Eugene K.; Smith, Barbara J.; Rajasekaran, Kanniah; Majid, M. A. 2014. Morphological and Cytomolecular Assessment of Intraspecific Variability in Scarlet Eggplant ( Solanum aethiopicum L.) . Journal of Crop Improvement. 28(4): 437-453. 19 p.

 


 [ Get Acrobat ]  Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility

USDA logo which links to the department's national site. Forest Service logo which links to the agency's national site.