Skip Navigation



Journal of Heredity Advance Access published online on March 2, 2008
Journal of Heredity, doi:10.1093/jhered/esn005
This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow All Versions of this Article:
99/3/283    most recent
esn005v1
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 Kwak, M.
Right arrow Articles by Gepts, P.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Kwak, M.
Right arrow Articles by Gepts, P.
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.

Mapping Homologous Sequences for Determinacy and Photoperiod Sensitivity in Common Bean (Phaseolus vulgaris)

Myounghai Kwak, Dianne Velasco, and Paul Gepts

From the Department of Plant Sciences/MS1, Section of Crop and Ecosystem Sciences, University of California, 1 Shields Avenue, Davis, CA 95616-8780

Address correspondence to Paul Gepts at the address above, or e-mail: plgepts{at}ucdavis.edu.

Determinacy and photoperiod insensitivity are agronomically important traits, selected during or after domestication in common bean. Determinacy reduces aboveground plant biomass and accelerates and synchronizes flowering. Photoperiod insensitivity allows common bean to be grown at higher latitudes under long days. In this study, we attempted to identify Phaseolus vulgaris homologues of 12 Arabidopsis genes that are involved in meristem identity determination and the photoperiod-dependent and autonomous flowering pathways. Amplification products with homology to the original Arabidopsis gene were obtained for 8 genes, 7 of which could be mapped onto the common bean-linkage map using the BAT93 x Jalo EEP 558 and Midas x G12873 [GenBank] recombinant inbred populations. Three Terminal Flower 1 homologues (PvTFL1x, PvTFL1y, and PvTFL1z) were mapped to B4, B1, and B7, respectively. PvTFL1y cosegregated with the determinacy locus, fin. In addition, PvTFL1z mapped near or at a second determinacy locus on B7. A Zeitlupe homologue mapped near a quantitative trait locus (QTL) for flowering time on linkage group B9. Constans, FCA, Flowering locus D, Gigantea, and Leafy homologues did not cosegregate with currently mapped flowering time QTLs and photoperiod insensitivity loci in common bean. Further studies are needed to confirm the role of these homologues as potential candidate genes.

Corresponding Editor: William Tracy

Received June 21, 2007
Accepted November 30, 2007


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.