Embryonic development and microsatellite-based parentage assignment of seaweed pipefish Syngnathus schlegeli
| Autor: | Xiu-Mei Zhang, Jian-Yu Dong, Yu-Xi Huang, Xiu-Wen Xu, Zhi Chen |
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| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
Larva biology 010604 marine biology & hydrobiology fungi Embryogenesis Zoology Embryo Aquatic Science biology.organism_classification 010603 evolutionary biology 01 natural sciences Pipefish behavior and behavior mechanisms Mating Snout Brood pouch Syngnathus schlegeli reproductive and urinary physiology |
| Zdroj: | Hydrobiologia. 847:913-923 |
| ISSN: | 1573-5117 0018-8158 |
| DOI: | 10.1007/s10750-019-04152-6 |
| Popis: | In this study, the embryonic development of Syngnathus schlegeli is first described based on external morphological characteristics and then the genetic relationship between embryos is investigated using a microsatellite-based approach. Embryonic development proceeds from fertilized egg to prerelease of larva and can be categorized into four periods: early embryogenesis, eye development, snout formation and larva, which can be further divided into 15 stages. Embryos in the brood pouch are all in the same developmental stage. However, multi-maternity is observed in all sampled broods. Microsatellite-based parentage analysis suggests that pregnant males had, per male, mated with and received eggs from 3 to 7 females, with average being 4.3. The embryos of full sibs within a brood pouch were clustered, and seven patterns of parentage were observed. Combining previous studies with the evidence obtained from genotyped eggs inside the brood pouch in this study, we can confirm that the mating pattern of S. schlegeli is polygamous. |
| Databáze: | OpenAIRE |
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