Sara Albarella

INTRODUCTION The river buffalo (Bubalus bubalis) and cattle (Bos taurus) both belong to the tribe Bovini, one of the several tribes within the family Bovidae. The closest common ancestor of cattle and river buffalo has been traced back to the middle Miocene, approximately 13.2 million years ago (Hassanin et al., 2012, 2013). In terms of genome organization, river buffalo and cattle have different chromosome numbers (2n = 50 for B. bubalis—river type—and 2n = 60 for B.

1. Introduction Parthenogenesis (from the two Greek words parthenos, meaning virgin, and genesis, meaning origin) has been defined as a form of ‘asexual’ reproduction in which a female reproduces without the participation of a male [1,2,3,4,5]. The term ‘parthenogenesis’ was later defined by Richard Owen in 1849 as “procreation without the immediate influence of the male”. In fact, the embryo forms without male fertilization by sperm [6,7,8].

Abstract : Simple Summary Collision tumors (CT) consist of two independent neoplasm populations. Disorders of sexual development (DSDs) are characterized by various abnormalities of the genital tract. A phenotypically female 8-year-old Jack Russell terrier was submitted for clinical evaluation due to anomalous vaginal discharge and non-pruritic cutaneous bilateral symmetrical alopecia on the flanks.