Using reproductive technologies to assess the development of secondary sexual characteristics, ovarian senescence and hermaphroditism in the endangered mountain yellow-legged frog Rana muscosa
Using reproductive technologies to assess the development of secondary sexual characteristics, ovarian senescence and hermaphroditism in the endangered mountain yellow-legged frog Rana muscosa
复制标题
利用生殖技术评估濒危山地黄腿蛙第二性征的发育、卵巢衰老和雌雄同体
DOI：
10.1071/rd21029
复制
发表时间：
2021
期刊：
影响因子：
--
通讯作者：
Calatayud, Natalie E.
中科院分区：
文献类型：
--
作者：
Jacobs, Leah E.;Hammond, Talisin T.;Gaffney, Patricia M.;Curtis, Michelle J.;Shier, Debra M.;Durrant, Barbara S.;Righton, Alison;Williams, Candace L.;Calatayud, Natalie E.
无尾两栖动物可以表现出一系列有趣的性综合征，包括两性畸形和性反转。使用多方面的方法来诊断和表征雌雄同体的濒危无尾类物种蛙粘膜，我们跟踪女性生殖状态的变化，使用激素监测，超声检查，个人生活史，受精记录和尸检结果。7个最初被鉴定为雌性的个体发展出了第二性征、行为和激素特征，在某些情况下，尽管先前已经产卵，但仍有睾丸组织。我们的研究结果表明，生殖技术可以揭示生活史模式和生殖异常，可能会影响濒危无尾类生存。
Anurans can display a host of intriguing sexual syndromes, including hermaphroditism and sex reversal. Using a multifaceted approach for diagnosing and characterising hermaphroditism in the endangered anuran species Rana mucosa, we tracked changes in female reproductive status using hormone monitoring, ultrasound examinations, individual life history, fertilisation records and post-mortem findings. Seven individuals originally sexed as females developed secondary male sexual characteristics, behaviour and hormone profiles and, in some cases, had testicular tissue despite having previously laid eggs. Our results suggest that reproductive technologies can shed light on life history patterns and reproductive anomalies that may affect endangered anuran survival.