Mouthbrooding behavior and sexual immune dimorphism in Indian perch Jaydia lineata

Yanhong Zhang; Xin Wang; Haiyan Yu; Jia Zhong; Meng Qu; Yuan Zhang; Binbin Shan; Geng Qin; Huixian Zhang; Liangmin Huang; Zhenhua Ma; Tianxiang Gao; Qiang Lin

doi:10.59717/j.xinn-life.2024.100066

The Innovation Life > 2024 Vol. 2 > No. 2 > 100066

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Mouthbrooding behavior and sexual immune dimorphism in Indian perch Jaydia lineata

1.
CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
2.
Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
3.
University of Chinese Academy of Sciences, Beijing 100101, China
4.
Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, China
5.
South China Sea Fisheries Research Institute, Chinese Academy of Fisheries Sciences, Guangzhou 510300, China
6.
School of Fishery, Zhejiang Ocean University, Zhoushan 316022, China
7.
These authors contributed equally

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Corresponding authors: linqiang@scsio.ac.cn (Q.L.); gaotianxiang0611@zjou.edu.cn (T.G.)
Received Date: January 17, 2024

Accepted Date: April 14, 2024

Published Online: May 21, 2024

The Innovation Life 2(2), https://doi.org/10.59717/j.xinn-life.2024.100066 | Cite this article

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GRAPHICAL ABSTRACT

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PUBLIC SUMMARY

PUBLIC SUMMARY
1. Mouthbrooding teleosts, like Jaydia lineata, show unique parental care behaviors, revealing convergent evolution.
  
  Genomic analysis identifies genes associated with embryonic development, emphasizing parental care’s importance.
  
  Adaptive convergence in oxytocin signaling pathway-related genes indicates the crucial role of hormonal regulation.
  
  The study reveals a trade-off between parental care and immune activation, with sexual immune dimorphism.

ABSTRACT

ABSTRACT

Parental care enhances offspring survival in teleost vertebrates; however, its genetic basis and evolutionary traits remain unexplored. Therefore, we assembled the chromosome-level genome of the paternal mouthbrooder, Jaydia lineata, and observed convergent evolution in parental care fish. Genomic signatures revealed the association of certain genes with embryonic development, implying that parental behavior is conducive for offspring. Adaptive convergence occurred as an in evolutionary response oxytocin signaling pathway-related genes; thus, hormonal regulation is vital in this process. Specific neuropeptides and steroid hormones co-opted and primary immunodeficiency-related transcripts were enriched in Indian perch. Comparative transcriptome analysis revealed a trade-off between parental care and immunological activation in mouthbrooders. Sexual immune dimorphism, evident in the buccal mucosa, is characterized by the functional differentiation of immune-related genes in male mouthbrooders. Thus, we elucidated the genetic basis and unique physiological traits of mouthbrooding, offering insights into the independent evolution of complex parental care adaptations in teleosts.

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Zhang Y., Wang X., Yu H., et al., (2024). Mouthbrooding behavior and sexual immune dimorphism in Indian perch Jaydia lineata. The Innovation Life 2(2): 100066. https://doi.org/10.59717/j.xinn-life.2024.100066

Zhang Y., Wang X., Yu H., et al., (2024). Mouthbrooding behavior and sexual immune dimorphism in Indian perch Jaydia lineata. The Innovation Life 2(2): 100066. https://doi.org/10.59717/j.xinn-life.2024.100066

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Mouthbrooding behavior and sexual immune dimorphism in Indian perch Jaydia lineata

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