TITLE

A new semi-dwarfing gene identified by molecular mapping of quantitative trait loci in barley

AUTHOR(S)
Guo Tai Yu; Horsley, Richard D.; Bingxin Zhang; Franckowiak, Jerome D.
PUB. DATE
February 2010
SOURCE
Theoretical & Applied Genetics;Feb2010, Vol. 120 Issue 4, p853
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Semi-dwarfing genes have been widely used in spring barley ( Hordeum vulgare L.) breeding programs in many parts of the world, but the success in developing barley cultivars with semi-dwarfing genes has been limited in North America. Exploiting new semi-dwarfing genes may help in solving this dilemma. A recombinant inbred line population was developed by crossing ZAU 7, a semi-dwarf cultivar from China, to ND16092, a tall breeding line from North Dakota. To identify quantitative trait loci (QTL) controlling plant height, a linkage map comprised of 111 molecular markers was constructed. Simple interval mapping was performed for each of the eight environments. A consistent QTL for plant height was found on chromosome 7HL. This QTL is not associated with maturity and rachis internode length. We suggest the provisional name Qph-7H for this QTL. Qph-7H from ZAU 7 reduced plant height to about 3/4 of normal; thus, Qph-7H is considered a semi-dwarfing gene. Other QTLs for plant height were found, but their expression was variable across the eight environments tested.
ACCESSION #
47728828

 

Related Articles

  • locus.  // Taber's Cyclopedic Medical Dictionary (2009);2009, Issue 21, p1361 

    A definition of the term "locus," which refers to a site of a gene on a chromosome, is presented.

  • A novel blast resistance locus in a rice ( Oryza sativa L.) cultivar, Chumroo, of Bhutan. Matsushita, Kei; Yasuda, Nobuko; Thinlay; Koizumi, Shinzo; Ashizawa, Taketo; Sunohara, Yoshihiro; Iida, Shuichi; Ideta, Osamu; Maeda, Hideo; Fujita, Yoshikatsu // Euphytica;Jul2011, Vol. 180 Issue 2, p273 

    The rice cultivar 'Chumroo' is commonly cultivated in the mid- and high-altitude areas of Bhutan. This cultivar has shown durable blast resistance in that area, without evidence of breakdown, for over 20 years. Chumroo was inoculated with 22 blast isolates selected from the race differential...

  • A genome-wide linkage scan in Tunisian families identifies a novel locus for non-syndromic posterior microphthalmia to chromosome 2q37.1. Hmani-Aifa, Mounira; Salem, Salma Ben; Benzina, Zeineb; Bouassida, Walid; Messaoud, Riadh; Turki, Khalil; Khairallah, Moncef; Rebaï, Ahmed; Fakhfekh, Faïza; Söderkvist, Peter; Ayadi, Hammadi // Human Genetics;Oct2009, Vol. 126 Issue 4, p575 

    Posterior microphthalmia (PM) is a relatively rare autosomal recessive condition with normal anterior segment and small posterior segment resulting in high hyperopia and retinal folding. It is an uncommon subtype of microphthalmia that has been mostly reported to coexist with several other...

  • Population structure and genetic bottleneck in sweet cherry estimated with SSRs and the gametophytic self-incompatibility locus. Mariette, Stéphanie; Tavaud, Muriel; Arunyawat, Uraiwan; Capdeville, Gaëlle; Millan, Muriel; Salin, Franck // BMC Genetics;2010, Vol. 11, p77 

    Background: Domestication and breeding involve the selection of particular phenotypes, limiting the genomic diversity of the population and creating a bottleneck. These effects can be precisely estimated when the location of domestication is established. Few analyses have focused on...

  • Genetic analysis of biological pathway data through genomic randomization. Yaspan, Brian Y.; Bush, William S.; Torstenson, Eric S.; Ma, Deqiong; Pericak-Vance, Margaret A.; Ritchie, Marylyn D.; Sutcliffe, James S.; Haines, Jonathan L. // Human Genetics;May2011, Vol. 129 Issue 5, p563 

    Genome Wide Association Studies (GWAS) are a standard approach for large-scale common variation characterization and for identification of single loci predisposing to disease. However, due to issues of moderate sample sizes and particularly multiple testing correction, many variants of smaller...

  • A novel locus for autosomal dominant congenital motor nystagmus mapped to 1q31-q32.2 between D1S2816 and D1S2692. Xiao, Xueshan; Li, Shiqiang; Guo, Xiangming; Zhang, Qingjiong // Human Genetics;May2012, Vol. 131 Issue 5, p697 

    Congenital motor nystagmus (CMN) is characterized by bilateral involuntary ocular oscillation without any other underlying ocular or systemic diseases. An autosomal dominant CMN was identified in a large Chinese family where all patients had nystagmus since infancy. The nystagmus in the family...

  • FSTVAL: a new web tool to validate bulk flanking sequence tags. Joung Sug Kim; Jiye Kim; Tae-Ho Lee; Kyong Mi Jun; Tea Hoon Kim; Yul-Ho Kim; Hyang-Mi Park; Jong-Seong Jeon; Gynheung An; Ung-Han Yoon; Baek Hie Nahm; Yeon-Ki Kim // Plant Methods;2012, Vol. 8 Issue 1, p19 

    Background: Information about a transgene locus is one of the major concerns in transgenic research because expression of the transgene or a gene interrupted by the integration event could be affected. Thus, the flanking sequences obtained from transgenic plants need to be analyzed in terms of...

  • An Adaptive Allelic Series Featuring Complex Gene Rearrangements. Schmidt, Joshua M.; Robin, Charles // PLoS Genetics;Oct2011, Vol. 7 Issue 10, p1 

    The authors discuss a study by M. M. Magwire and colleagues which identified a locus affecting sigma virus resistance in Drosophila melanogaster. The study linked viral resistance to the GHKov1 genes. The researchers used a positional cloning approach which involves some of the genetic tools...

  • Confidence set of putative quantitative trait loci in whole genome scans with application to the Genetic Analysis Workshop 17 simulated data. Papachristou, Charalampos // BMC Proceedings;2011 Supplement 9, Vol. 5 Issue Suppl 9, p1 

    As genetic maps become more highly dense, the ability to sufficiently localize putative disease loci becomes an achievable goal. This has prompted an increased interest in methods for constructing confidence intervals for the location of variants that contribute to a trait. Such intervals are...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics