Skip Navigation


Journal of Heredity Advance Access originally published online on July 12, 2006
Journal of Heredity 2006 97(4):423-427; doi:10.1093/jhered/esl015
This Article
Right arrow Full Text Freely available
Right arrow FREE Full Text (PDF) Freely available
Right arrow All Versions of this Article:
97/4/423    most recent
esl015v1
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 Xu, M.
Right arrow Articles by Palmer, R. G.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Xu, M.
Right arrow Articles by Palmer, R. G.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

© The American Genetic Association. 2006. All rights reserved. For permissions, please email: journals.permissions@oxfordjournals.org.

Genetic Analysis of 4 New Mutants at the Unstable k2 Mdh1-n y20 Chromosomal Region in Soybean

Min Xu, and Reid G. Palmer

From the Department of Agronomy and Interdepartmental Genetics Graduate Program, Iowa State University, Ames, IA 50011 (Xu); and US Department of Agriculture–Agricultural Research Service, Corn Insects and Crop Genetics Research Unit, Department of Agronomy, and Interdepartmental Genetics Graduate Program, Iowa State University, Ames, IA 50011 (Palmer)

Address correspondence to R. G. Palmer at the address above, or e-mail: rpalmer{at}iastate.edu.

In soybean (Glycine max (L.) Merr.), a chromosomal region defined by 3 closely linked loci, k2 (tan-saddle seed coat), Mdh1-n (malate dehydrogenase 1 null), and y20 (yellow foliage), is highly mutable. A total of 31 mutants have been reported from this region. In this study, a mutation with tan-saddle seed coat was found from bulk-harvested seed of cultivar Kenwood. Genetic analysis established that this tan-saddle seed coat mutation is allelic to the k2 locus and inherited as a recessive gene. Simple sequence repeat analysis showed that this mutant is not a contaminant from other existing k2 mutants. The mutant was named Kenwood-k2. To test for genetic instability at the k2 Mdh1-n y20 chromosomal region, Kenwood-k2 was crossed reciprocally with cultivars Harosoy and Williams. No new mutants were found in F2 families. In the genetic instability tests of T239 (k2) with cultivar Williams, 3 new mutants with yellow foliage (y20) and malate dehydrogenase 1 null (Mdh1-n) were identified. In the genetic instability tests of T261 (k2 Mdh1-n) with cultivar Williams, no new mutants were found. The Kenwood-k2 and the 3 yellow-foliage, malate dehydrogenase 1–null mutants provide additional genetic materials to study chromosomal aberrations in this mutable/unstable chromosomal region.


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.