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Title:   Author  item
                                            HAGEN, C - UC DAVIS, PLANT PATHOLOGYitem
                                            ROJAS, M - UC DAVIS, PLANT PATHOLOGYitem
                                            Sudarshana, Mysoreitem
                                            XOCONOSTLE-CAZARES, B - CINVESTAV MEXICOitem
                                            NATWICK, E - UCCE-HOLTVILLE, CAitem
                                            TURINI, T - UCCE-FRESNO, CAitem
                                            GILBERTSON, R - UC DAVIS, PLANT PATHOLOGY
  Submitted to: Plant Disease
                                    Publication Type: Peer Reviewed Journal
                                    Publication Acceptance Date: 11/29/2007
                                    Publication  Date: 5/1/2008
                                    Citation: Hagen, C., Rojas, M.R., Sudarshana, M.R., Xoconostle-Cazares, B., Natwick, E.T., Turini, T.A., Gilbertson, R.L. 2008. Biology and Molecular Characterization of Cucurbit leaf crumple virus, an Emergent Cucurbit-Infecting Begomovirus in the Imperial Valley of California. Plant Disease. 95:5, pp.781-793.Interpretive Summary:
                                Technical Abstract: Cucurbit leaf crumple virus (CuLCrV) is an emergent and potentially economically important bipartite begomovirus first identified in volunteer watermelon plants in the Imperial Valley of
southern California in 1998. Field surveys indicated that CuLCrV has become established in the Imperial Valley; and field plot studies revealed that CuLCrV primarily infects cucurbits, including
cantaloupe, squash, and watermelon. Full-length DNA-A and DNA-B clones of an Imperial Valley isolate of CuLCrV were obtained by polymerase chain reaction (PCR) with overlapping primers. These clones were infectious in various cucurbits and common bean (cv. Topcrop); symptoms included stunted growth and leaf crumple, curl, and chlorosis. CuLCrV was not saptransmissible, and immunolocalization and DNA in situ hybridization studies revealed that it is phloem-limited. A CuLCrV agroinoculation system was generated, and host range studies revealed differential susceptibility in cucurbits, with squash, watermelon, cantaloupe, and honeydew melon being most to least susceptible, respectively. Germplasm screening studies identified a number of resistant cantaloupe and honeydew melon cultivars. The genome organization of
this CuLCrV isolate (CuLCrV-CA) is similar to other bipartite begomoviruses, and phylogenetic analysis placed CuLCrV in the Squash leaf curl virus (SLCV) cluster of New World bipartite
begomoviruses. A CuLCrV-specific PCR test was developed which allows for differentiation from other begomoviruses, including SLCV.


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