Skip Navigation



Journal of Heredity Advance Access published online on July 5, 2008
Journal of Heredity, doi:10.1093/jhered/esn054
This Article
Right arrow Full Text Freely available
Right arrow FREE Full Text (PDF) Freely available
Right arrow All Versions of this Article:
99/6/573    most recent
esn054v1
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Add to My Personal Archive
Right arrow Download to citation manager
Right arrowRequest Permissions
Google Scholar
Right arrow Articles by Nguyen, P.
Right arrow Articles by Clark, D.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Nguyen, P.
Right arrow Articles by Clark, D.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

© The American Genetic Association. 2008. All rights reserved. For permissions, please email: journals.permissions@oxfordjournals.org.

Genetics of Growth Habit and Development of New Coleus (Solenostemon scutellarioides (L.) Codd) Varieties with Trailing Habit and Bright Color

Phuong Nguyen, Kenneth Quesenberry, and David Clark

Department of Environmental Horticulture, University of Florida, Gainesville, FL 32611 (Nguyen and Clark) and Agronomy Department, University of Florida, Gainesville, FL 32611 (Quesenberry)

Address correspondence to David Clark at the address above, or e-mail: geranium{at}ufl.edu.

A high level of genetic variability for growth habit types is observed in tetraploid, cultivated coleus (Solenostemon scutellarioides (L.) Codd). Very few cultivars with trailing habit exist, and those that are available generally have dark green or purple foliage color. Coleus with trailing growth habit is desirable as it increases its utility for use in hanging baskets, mixed containers, and as ground cover. There is a lack of published information on the genetic mechanism controlling growth habit and the development of new trailing types with orange colors. Two commercial cultivars, "Red Trailing Queen" (RQ) with trailing habit and "Sedona" (S) with upright stature, were selfed and crossed (RQ x S) to produce self and F1 populations. F2 populations were produced by selfing plants in the F1 population. For each population analyzed, growth habit was rated on a visual 1–5 phenotypic scale, where 1 = upright, 2 = semi-upright, 3 = prostrate, 4 = semitrailing, and 5 = trailing. Genotypes were assigned to each phenotype, assuming that upright was dominant to trailing. In this study, growth habit was observed to be controlled by a single gene (U) with additive effects, with upright growth habit designated with a UUUU genotype and trailing growth habit designated with a uuuu genotype. In addition, foliage color was rated on a visual 1–5 phenotypic scale, and purple foliage color was found to be dominant to yellow–orange color. Several new coleus selections with trailing growth habit and orange foliage color were successfully developed.

Corresponding Editor: Lisa Rowland

Received March 2, 2008
Accepted May 28, 2008


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?




Disclaimer: Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. All efforts have been made to ensure accuracy, but the Publisher will not be held responsible for any remaining inaccuracies. If you require any further clarification, please contact our Customer Services Department.