| Autor: |
Vu Trieu Duc, Trieu-Duc Vu, Yuki Iwasaki, Shuji Shigenobu, Akiko Maruko, Kenshiro Oshima, Erica Iioka, Chao-Li Huang, Takashi Abe, Satoshi Tamaki, Yi-Wen Lin, Chih-Kuan Chen, Mei-Yeh Lu, Masaru Hojo, Hao-Ven Wang, Shun-Fen Tzeng, Hao-Jen Huang, Akio Kanai, Takashi Gojobori, Tzen-Yuh Chiang, H. Sunny Sun, Wen-Hsiung Li, Norihiro Okada |
| Rok vydání: |
2019 |
| Popis: |
Conspecific male animals fight for resources such as food and mating opportunities but typically stop fighting after assessing their relative fighting abilities to avoid serious injuries. Physiologically, how the fighting behavior is controlled remains unknown. Using the fighting fish Betta splendens, we studied behavioral and neurotranscriptomic changes during the fight between the two opponents. At the behavioral level, surface-breathing and biting/striking occurred only during intervals between mouth-lockings. Eventually, the behaviors of the two opponents became synchronized, with each pair showing a unique behavioral pattern. At the physiological level, we examined the expression patterns of 23,306 brain transcripts using RNA-sequencing data from brains of fighting pairs after a 20-min (D20) and a 60-min (D60) fight. The two opponents in each D60 fighting pairs showed a strong gene expression correlation, whereas those D20 fighting pair showed a weak correlation. Moreover, each fighting pair in the D60 group showed pair-specific gene expression patterns in the grade of membership analysis (GoM) and were grouped as a pair in the heatmap clustering. The observed pair-specific individualization in neurotranscriptomic synchronization (PINS) suggested that this synchronization provides physiological bases for the behavioral synchronization. An analysis using the synchronized genes in fighting pairs of the D60 found genes enriched for ion transport, synaptic function, and learning and memory. PINS could be a general phenomenon and may provide a new cornerstone to investigate coordinating and sustaining social interactions between two interacting partners of higher animals. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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