Article
Twins! Microsatellite analysis of two embryos within one egg case in oviparous elasmobranchs.
PloS one - 1 Jan 2019
Hook Samantha A, Musa Syafiq M, Ripley Daniel M, Hibbitt Jean-Denis, Grunow Bianka, Moritz Timo, Shiels Holly A
Abstract excerpt
Elasmobranchs display various reproductive modes, which have been key to their evolutionary success. In recent decades there has been a rise in the number of reported cases of foetal abnormalities including fertilised, double-embryos held within one egg capsule, hereafter referred to as twins. Previously, the occurrences of twin egg cases have been reported in two batoid and one shark species. We report the first...
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