SAN JOSE — A group of San Diego law firms has won the coveted lead role in a series of class actions against genetic testing company 23andMe Inc., ending a weekslong feud between plaintiffs attorneys.

Gayle Blatt of Casey Gerry Schenk Francavilla Blatt & Penfield and Mark Ankcorn of the Ankcorn Law Firm will represent a potential class of customers who bought genetic testing kits from 23andMe. Plaintiffs argue they are entitled to compensation after the U.S. Food and Drug Administration found claims 23andMe made about the kits’ medical benefits were unverified.