Comparisons in temperature and photoperiodic-dependent diapause induction between domestic and wild mulberry silkworms.
Comparisons in temperature and photoperiodic-dependent diapause induction between domestic and wild mulberry silkworms.
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DOI：
10.1038/s41598-021-87590-4
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发表时间：
2021-04-13
影响因子：
4.6
通讯作者：
Shiomi K
中科院分区：
文献类型：
--
作者：
Yokoyama T;Saito S;Shimoda M;Kobayashi M;Takasu Y;Sezutsu H;Kato Y;Tominaga M;Mizoguchi A;Shiomi K
家蚕（Bombyx mori）的双生家蚕（bivoltine strain）每年繁殖两代。它表现为兼性滞育表型，这是由环境条件决定的，包括光周期和温度，以及母体胚胎和幼虫发育过程中的营养条件。然而，目前尚不清楚发育过程中接收到的环境信号如何被选择性地用作确定其他滞育表型的线索。本文对家蚕Kosetsu品系和日本野桑蚕（B. mandarina）滞育诱导的分级分子机制进行了比较分析。我们的研究结果表明，对于小濑虫来说，母亲胚胎发育过程中的温度信号主要通过热敏瞬时受体电位锚蛋白1 （TRPA1）和滞育激素（DH）信号通路影响滞育的决定。然而，尽管在这两个物种中，DH信号通路和TRPA1的热敏性是保守的，但鳜鱼的胚胎滞育是光周期依赖的。基于这些发现，我们假设TRPA1激活信号与参与Kosetsu滞育诱导的信号通路密切相关，选择性地利用温度信息作为线索，因为在TRPA1敲除突变体中，温度依赖性诱导被光周期诱导所取代。
The bivoltine strain of the domestic silkworm, Bombyx mori, has two generations per year. It shows a facultative diapause phenotype determined by environmental conditions, including photoperiod and temperature, 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 alternative diapause phenotypes. We performed a comparative analysis between the Kosetsu strain of B. mori and a Japanese population of the wild mulberry silkworm B. mandarina concerning the hierarchical molecular mechanisms in diapause induction. Our results showed that for the Kosetsu, temperature signals during the mother’s embryonic development predominantly affected diapause determination through the thermosensitive transient receptor potential ankyrin 1 (TRPA1) and diapause hormone (DH) signaling pathways. However, embryonic diapause in B. 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 participating in diapause induction in Kosetsu to selectively utilize the temperature information as the cue because temperature-dependent induction was replaced by photoperiodic induction in the TRPA1 knockout mutant.
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DOI：
10.1126/science.1176620
发表时间：
2009-10-16
期刊：
Science (New York, N.Y.)
影响因子：
--
作者：
Xia Q;Guo Y;Zhang Z;Li D;Xuan Z;Li Z;Dai F;Li Y;Cheng D;Li R;Cheng T;Jiang T;Becquet C;Xu X;Liu C;Zha X;Fan W;Lin Y;Shen Y;Jiang L;Jensen J;Hellmann I;Tang S;Zhao P;Xu H;Yu C;Zhang G;Li J;Cao J;Liu S;He N;Zhou Y;Liu H;Zhao J;Ye C;Du Z;Pan G;Zhao A;Shao H;Zeng W;Wu P;Li C;Pan M;Li J;Yin X;Li D;Wang J;Zheng H;Wang W;Zhang X;Li S;Yang H;Lu C;Nielsen R;Zhou Z;Wang J;Xiang Z;Wang J
通讯作者：
Wang J
影响因子：
4.6
作者：
Shiomi K;Takasu Y;Kunii M;Tsuchiya R;Mukaida M;Kobayashi M;Sezutsu H;Ichida Takahama M;Mizoguchi A
通讯作者：
Mizoguchi A
影响因子：
4.6
作者：
Li, Tianbang;Saito, Claire T.;Tominaga, Makoto
通讯作者：
Tominaga, Makoto
DOI：
10.1016/j.bbrc.2006.03.085
发表时间：
2006-05-26
影响因子：
3.1
作者：
Homma, T;Watanabe, K;Yaginuma, T
通讯作者：
Yaginuma, T
影响因子：
4.8
作者：
Takasu, Yoko;Tamura, Toshiki;Zurovec, Michal
通讯作者：
Zurovec, Michal