Samples were screened at 22 microsatellite loci with 12 amplifying unambiguous products. Here, we provide genetic evidence for consecutive virgin births by a female Colombian rainbow boa ( Epicrates maurus), resulting in the production of WW females likely through terminal fusion automixis. With the recent discovery of viable parthenogenetically produced female (WW) Boa constrictors, the existence of further parthenogenetic events resulting in WW females was questioned. Until recently, facultative automictic parthenogenesis within the squamate reptiles exhibiting ZZ:ZW genetic sex determination has resulted in single reproductive events producing male (ZZ) or female (ZW) offspring. ![]() © 2012 Wiley Periodicals, Inc.Ĭonsecutive virgin births in the new world boid snake, the Colombian rainbow Boa, Epicrates maurus.īooth, Warren Million, Larry Reynolds, R Graham Burghardt, Gordon M Vargo, Edward L Schal, Coby Tzika, Athanasia C Schuett, Gordon W This is the first report of parthenogenesis in a Brazilian rainbow boa and has implications for the conservation of reptiles maintained in captive breeding programs. ![]() In addition, all offspring were homozygous at each STR locus evaluated, supporting parthenogenetic reproduction. None of the offspring possessed a diagnostic STR allele present in the potential sire. Short tandem repeat (STR) DNA markers were genotyped in the male, female, and four offspring. Sexual reproduction as a result of failed prior vasectomy, recanalization of the vas deferens, or prolonged sperm storage was ruled out using the clinical history, histopathology, and gross necropsy. Kinney, Matthew E Wack, Raymund F Grahn, Robert A Lyons, LeslieĪ 22-year-old captive Brazilian rainbow boa ( Epicrates cenchria cenchria) gave birth to four offspring after being housed with a vasectomized male. Parthenogenesis in a Brazilian rainbow boa ( Epicrates cenchria cenchria).
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