Similar gene structure of two <i>Sox9a</i> genes and their expression patterns during gonadal differentiation in a teleost fish, rice field eel (<i>Monopterus albus</i>)

Abstract excerpt

The Sox9 gene encodes a transcription factor that is critical for testis determination and chondrogenesis in vertebrates. Mutations in human SOX9 cause campomelic dysplasia, a dominant skeletal dysmorphology syndrome often associated with male to female sex reversal. Here we show that the Sox9a gene was duplicated during evolution of the rice field eel, Monopterus albus, a freshwater fish which undergoes natural...

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