Location: Crop Diseases, Pests and Genetics
2012 Annual Report
This research contributes to development, maintenance and phenotyping of PM resistant grape seedling populations. This project also provides support for evaluation of seedlings and advanced selections with SSR markers for PM resistance and fruit traits. This will build confidence in the use of marker assisted selection.
Leaf tissue from four populations created at Parlier, Califoornia, that combine Vitis (V). vinifera with V. cinerea, V. romanetii, V aestivalis, and V. rotundifolia has been provided to Cornell University genotyping center to determining their genetic makeup by sequencing. Characterizing PM resistance and fruit quality traits for these four populations will begin in July and continue through the summer at Parlier, California. Leaves from 95 plants of the V. vinifera x V. aestivalis population have been provided to the Cornell University phenotyping center for determination of PM resistance. Over 900 PM and red flesh grape seedlings and selections have been developed at Parlier, California. Leaf tissue samples from these 900 individuals were sent to Cornell University genotyping center to verify SSR molecular markers used to aid selection of plants with desirable traits.