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Selection For Resistance And Tolerance To Oat Mosaic Virus And Oat Golden Stripe Virus In Hexaploid Oats, Scott L. Walker, Steven Leath, J. Paul Murphy, Steven A. Lommel
Selection For Resistance And Tolerance To Oat Mosaic Virus And Oat Golden Stripe Virus In Hexaploid Oats, Scott L. Walker, Steven Leath, J. Paul Murphy, Steven A. Lommel
Steven Leath
Coker 716, a hexaploid oat cultivar resistant to both oat mosaic virus (OMV) and oat golden stripe virus (OGSV) was crossed to three susceptible cultivars (Brooks, Madison, and Tech) to form three individual populations. Individual breeding lines were derived from each cross in the F2 generation and tested in plots consisting of equally spaced individual hills in OMV- and OGSV-infested soils and non-infested soils to evaluate resistance and yield loss of individual lines. Foliar symptoms, harvest index, and yield loss were examined as selection criteria for resistant genotypes. The study was conducted over 2 years at two North Carolina locations …
Revised Group Classification Of The Genus Spiroplasma, David L. Williamson, Robert F. Whitcomb, Joseph G. Tully, Gail E. Gasparich, David L. Rose, Patricia Carle, Joseph M. Bové, Kevin J. Hackett, Jean R. Adams, Roberta B. Henegar, Meghnad Konai, Claude Chastel, Frank E. French
Revised Group Classification Of The Genus Spiroplasma, David L. Williamson, Robert F. Whitcomb, Joseph G. Tully, Gail E. Gasparich, David L. Rose, Patricia Carle, Joseph M. Bové, Kevin J. Hackett, Jean R. Adams, Roberta B. Henegar, Meghnad Konai, Claude Chastel, Frank E. French
Gail Gasparich
Significant changes have been made in the systematics of the genus Spiroplasma (class Mollicutes) since it was expanded by revision in 1987 to include 23 groups and eight sub-groups. Since that time, two additional spiroplasmas have been assigned group numbers and species names. More recently, specific epithets have been assigned to nine previously designated groups and three sub-groups. Also, taxonomic descriptions and species names have been published for six previously ungrouped spiroplasmas. These six new organisms are: Spiroplasma alleghenense (strain PLHS-1T) (group XXVI), Spiroplasma lineolae (strain TALS-2T) (group XXVII), Spiroplasma platyhelix (strain PALS-1T) (group XXVIII), Spiroplasma montanense (strain HYOS-1T) (group …