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Published July 1987 | public
Journal Article

Sea Urchin Actin Gene Linkages Determined by Genetic Segregation

Abstract

Genetic linkage between the actin genes of Strongylocentrotus purpuratus was investigated by observing the segregation of restriction fragment length polymorphisms (RFLPs). Specific RFLPs of actin gene pairs CyICyIIa and CyIIIaCyIIIb always cosegregated, confirming the linkage groups CyI-CyIIa-CyIIb and CyIIIa-CyIIIb previously determined by molecular cloning. In contrast, RFLPs of actin genes CyICyIIa, CyIIIaCyIIIb, and M all segregated at random with respect to one another. This demonstrates that the known actin gene clusters CyI-CyIIa-CyIIb, CyIIIa-CyIIIb, and the M actin gene are not closely linked.

Additional Information

© 1987 Academic Press, Inc. Received 2 January 1987, Accepted 6 March 1987. We thank Dr. Elliot Meyerowitz for reviewing the manuscript. This research was supported by an NIH grant (GM-20927). J.E.M. was supported by an NSF predoctoral fellowship, J.J.L. by an NIH training grant (GM-07616), and R.J.A. by an EMBO fellowship.

Additional details

Created:
August 19, 2023
Modified:
October 18, 2023