دورية أكاديمية
Embryonic diapause in the elasmobranchs
| العنوان: | Embryonic diapause in the elasmobranchs |
|---|---|
| المؤلفون: | Waltrick, Daniela, Awruch, Cynthia Andrea, Simpfendorfer, Colin |
| بيانات النشر: | Springer |
| المجموعة: | CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
| مصطلحات موضوعية: | Arrested Development, Discontinuous Development, Pregnancy, Reproductive Hormones, Reproductive Trait, https://purl.org/becyt/ford/1.6Test, https://purl.org/becyt/ford/1Test |
| الوصف: | Embryonic diapause is a temporary suspension of development at any stage of embryogenesis, which prolongs the gestation period, allowing parturition to occur in conditions that are more suitable for newborns. This reproductive trait is widespread among all vertebrates, including elasmobranchs. Although it has only been confirmed in two elasmobranchs (Rhizoprionodon taylori and Dasyatis say), evidence indicates that at least 14 species of rays and two sharks undergo diapause, suggesting that this form of reproduction exists within a wide range of elasmobranch reproductive modes, including lecithotrophs and matrotrophs. Where it has been studied, embryogenesis is arrested at the blastodisc stage and preserved in the uterus for periods from four to 10 months. There are still many questions that remain unanswered concerning the knowledge on the biology of most diapausing species but it is clear that species benefit differently from this reproductive trait. As in other vertebrates, it is likely that environmental cues and hormones (especially progesterone and prolactin) are involved in the control of diapause in elasmobranchs, however rigorous testing of current hypothesis remains to be carried out. ; Fil: Waltrick, Daniela. James Cook University; Australia ; Fil: Awruch, Cynthia Andrea. James Cook University; Australia. University of Tasmania; Australia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico; Argentina ; Fil: Simpfendorfer, Colin. James Cook University; Australia |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf |
| اللغة: | English |
| تدمد: | 0960-3166 1573-5184 |
| العلاقة: | info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2Fs11160-012-9267-5Test; http://hdl.handle.net/11336/76743Test; Waltrick, Daniela; Awruch, Cynthia Andrea; Simpfendorfer, Colin; Embryonic diapause in the elasmobranchs; Springer; Reviews In Fish Biology And Fisheries; 22; 4; 12-2012; 849-859; CONICET Digital; CONICET |
| الإتاحة: | https://doi.org/10.1007/s11160-012-9267-5Test http://hdl.handle.net/11336/76743Test |
| حقوق: | info:eu-repo/semantics/openAccess ; https://creativecommons.org/licenses/by-nc-sa/2.5/arTest/ |
| رقم الانضمام: | edsbas.A48DF3DB |
| قاعدة البيانات: | BASE |
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