Isaura Gallegos Bio, Research, Abstract http://www.ewu.edu/academics/trio-mcnair-scholar-program/past-and-present-participants/2005-research-interns/isaura-gallegos en-us Sat, 23 Aug 2014 15:20:40 UTC Sat, 23 Aug 2014 15:20:40 UTC webmaster@ewu.edu webmaster@ewu.edu

Isaura Gallegos

Bio, Research, AbstractIsaura Gallegos, McNair Scholar, Research, Biology

 

2005 Research

The improvements of the Wheat Map as a Foundation for Marker-Assisted Selection

This project was conducted in the Washington State University Spring Wheat Breeding and Genetics Program under the mentorship of Dr. Kimberlee Kidwell, and supported by the Eastern Washington University's Ronald E. McNair Postbaccalaureate Achievement Program, under the mentorship of Dr. Donald Lightfoot.

Wheat (triticum spp.) is the food grain primarily consumed by humans and in terms of acreage, more is dedicated to the commercial production of wheat than for any other crop in the world (Briggle and Curtis, 1987). In the United States, 49 million metric tons of wheat are produced annually, with 20% of production occurring California and the Pacific Northwest (NASS, 2007). According to Chen, stripe rust of wheat is one of the most important diseases of wheat world wide (2005). It is found in more than 60 countries (Chen, 2005) and in the year 2000, stripe rust was found in 20 states throughout the U.S. (Chen, 2002).

Rust of cereals is caused by different formae specials of Puccinia striiformis, subdivided based on specialization on different genera and species of host plants (Chen, 2005). Furthermore, in wheat, Allison and Isenbeck, identified more subdividions of P. striiformis based on virulence or avirulence to different cultivars of wheat. This is a fungus in the order Uredinales of Basidiomycetes. Stripe rust in wheat is caused by Puccinia striiformis f. sp. tritici. The lifecycle of this fungus undergoes dikaryotic uredial and telial stages. Because it does not have alternate hosts for the basidiospores to infect, it does not have pycnial and aecial stages. In the U.S. a total of 109 races of P. striformis f. sp. tritici have been identified (Chen, 2005).

 

Presentations

EWU Symposium, May 2007, Presenter

11th Ann. Resrch & CW Symposium, EWU, May 14, 2008

10th Ann. Resrch & CW Symposium, EWU, May 16,2007

 

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