U-cadherin is a member of the cadherin family in participates in interblastomere adhesion in the early first cleavage onwards. Though a maternal pool of U- available in the egg, it is not present on the egg al., 1991. Development 111, 829–844). To assess the unexpected distribution in the egg, the accumulation of the cadherin during oogenesis and oocyte maturation investigated. We report here that U-cadherin is oocytes throughout oogenesis. It is localized at the

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