Worm Breeder's Gazette 13(5): 78 (February 1, 1995)

These abstracts should not be cited in bibliographies. Material contained herein should be treated as personal communication and should be cited as such only with the consent of the author.

Correlation of the Genetic and Physical Maps Within the rol-3 Region of LGV (left).

W. Bradley Barbazuk, David L. Baillie

Institute of Molecular Biology and Biochemistry, Simon Fraser University, Burnaby, BC. CANADA, VSA 1 S6

In an attempt to identify the physical location of the rol-3
(V) gene we have begun the systematic germ-line transformation
rescue of lethal mutations within zones 16-18 of LGV (JOHNSEN
and BAILLIE, GENETICS 129: 735-?52). Using H. Kagawa's
placement of unc-68 (WBG 12(4)) as a starting point we began
to inject cosmids to the right of C46C6 into N2 hermaphrodites.
In doing so we were able to obtain a battery of strains each
carrying cosmids singly, or multiply, in stable arrays
which were then used as mini-duplications in subsequent
crosses to lethal bearing strains. In total we used eight
cosmid bearing strains and one YAC bearing strain in the
rescue of 13 lethal mutations including rol-3 (Table 1).
Our germ-line transformation rescue data has enabled
us to split up and order some of the lethal mutations within
the zone 16-18 gene clusters. (Figure 1). We would like
to thank C. Mello and J. Priess for providing a strain carrying
an array composed of ZK307, F25G6 and FOlH8, as well as providing
purified DNA for many of the cosmids injected.