Comparisons in temperature and photoperiodic-dependent diapause induction between domestic and wild mulberry silkworms
| Autor: | Hideki Sezutsu, Makoto Tominaga, Shigeru Saito, Kunihiro Shiomi, Masakazu Kobayashi, Takeshi Yokoyama, Misato Shimoda, Akira Mizoguchi, Yoko Takasu, Yoshiomi Kato |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
0301 basic medicine
Science Photoperiod Mutant Diapause Article 03 medical and health sciences 0302 clinical medicine Bombyx mori Developmental biology Animals photoperiodism Multidisciplinary biology Voltinism Embryogenesis fungi Temperature food and beverages Gene Expression Regulation Developmental biology.organism_classification Bombyx Phenotype Cell biology Circadian Rhythm 030104 developmental biology Medicine Embryonic diapause Morus Entomology 030217 neurology & neurosurgery |
| Zdroj: | Scientific Reports Scientific Reports, Vol 11, Iss 1, Pp 1-9 (2021) |
| ISSN: | 2045-2322 |
| Popis: | The bivoltine strain of thedomesticsilkworm, Bombyx mori, has two generations per year. It shows a facultativediapausephenotype determined by environmental conditions, including photoperiod andtemperature, and nutrient conditions during embryonic and larval development of the mother. However, it remains unclear how the environmental signals received during development are selectively utilized as cues to determine alternativediapausephenotypes. We performed a comparative analysisbetweenthe Kosetsu strain of B. mori and a Japanese population of thewildmulberrysilkworm B. mandarina concerning the hierarchical molecular mechanismsindiapauseinduction. Our results showed that for the Kosetsu,temperaturesignals during the mother's embryonic development predominantly affecteddiapausedetermination through the thermosensitive transient receptor potential ankyrin 1 (TRPA1) anddiapausehormone (DH) signaling pathways. However, embryonicdiapauseinB. mandarina was photoperiod-dependent, although the DH signaling pathway and thermal sensitivity of TRPA1 were conserved within both species. Based on these findings, we hypothesize that TRPA1-activated signals are strongly linked to the signaling pathway participatingindiapauseinductioninKosetsu to selectively utilize thetemperatureinformation as the cue becausetemperature-dependentinductionwas replaced byphotoperiodicinductioninthe TRPA1 knockout mutant. Article Scientific Report 11(1) : 8052-(2021) |
| Databáze: | OpenAIRE |
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