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在韩国无肺螈的脑和尾部基础腺中存在 sodefrin 前体样因子信息素候选物。

Presence of sodefrin precursor-like factor pheromone candidates in mental and dorsal tail base glands in the plethodontid salamander, Karsenia koreana.

机构信息

Department of Biology, Gonzaga University, Spokane, Washington, United States of America.

Department of Genome Sciences, University of Washington, Seattle, Washington, United States of America.

出版信息

PLoS One. 2023 Aug 1;18(8):e0289296. doi: 10.1371/journal.pone.0289296. eCollection 2023.

DOI:10.1371/journal.pone.0289296
PMID:37527281
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10393140/
Abstract

Plethodontid salamanders are well known for their distinct courtship rituals and the associated pheromonal signaling. However, little is known about pheromones produced in the lone Asian plethodontid species Karsenia koreana. Here, we examined the localization patterns of proteins of the sodefrin precursor-like factor (SPF) pheromone system in K. koreana. Using an antibody generated against SPF proteins from another plethodontid, Desmognathus ocoee, we tested three types of skin glands in K. koreana males via immunohistochemistry: the mental gland and two types of dorsal tail base glands-caudal courtship glands and dorsal granular glands. SPF immunoreactivity was detected in the known courtship gland, the mental gland, as well as granular glands, but not in caudal courtship glands. Due to immunoreaction specificity, we hypothesize the proteins of the SPF system in K. koreana and D. ocoee are structurally and functionally related and are used as courtship pheromones in K. koreana. Also, we hypothesize that K. koreana males transmit SPF to the female during the tail-straddling walk via dorsal granular glands. Finally, K. koreana male caudal courtship glands may be producing SPF proteins that are not recognized by our SPF antibody or these glands may play a different role in courtship than anticipated.

摘要

有尾目蝾螈以其独特的求偶仪式和相关的信息素信号而闻名。然而，对于亚洲唯一的有尾目蝾螈——朝鲜爪鲵产生的信息素知之甚少。在这里，我们研究了 Karsenia koreana 中 sodefrin 前体样因子 (SPF) 信息素系统蛋白的定位模式。使用针对另一种有尾目蝾螈 Desmognathus ocoee 的 SPF 蛋白产生的抗体，我们通过免疫组织化学测试了 K. koreana 雄性的三种皮肤腺体：颏下腺和两种类型的尾部基底腺体——尾求偶腺和背颗粒腺。SPF 免疫反应性在已知的求偶腺颏下腺以及颗粒腺中被检测到，但在尾求偶腺中未被检测到。由于免疫反应的特异性，我们假设 K. koreana 和 D. ocoee 的 SPF 系统蛋白在结构和功能上是相关的，并在 K. koreana 中用作求偶信息素。此外，我们假设 K. koreana 雄性在跨尾行走时通过背颗粒腺将 SPF 传递给雌性。最后，K. koreana 雄性的尾求偶腺可能产生的 SPF 蛋白未被我们的 SPF 抗体识别，或者这些腺体在求偶中可能发挥与预期不同的作用。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ba49/10393140/4b9b8132c591/pone.0289296.g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ba49/10393140/02ebaa7f98c4/pone.0289296.g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ba49/10393140/9aaf0d9f6c87/pone.0289296.g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ba49/10393140/4b9b8132c591/pone.0289296.g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ba49/10393140/02ebaa7f98c4/pone.0289296.g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ba49/10393140/9aaf0d9f6c87/pone.0289296.g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ba49/10393140/4b9b8132c591/pone.0289296.g003.jpg

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Insects. 2021 May 23;12(6):484. doi: 10.3390/insects12060484.
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The Asian plethodontid salamander preserves historical genetic imprints of recent northern expansion.
亚洲小鲵保存了近期北方扩张的历史遗传印记。
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Insect alarm pheromones in response to predators: Ecological trade-offs and molecular mechanisms.昆虫对捕食者的报警信息素：生态权衡与分子机制。
Insect Biochem Mol Biol. 2021 Jan;128:103514. doi: 10.1016/j.ibmb.2020.103514. Epub 2020 Dec 23.
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A New Perspective on Female-to-Male Communication in Salamander Courtship.蝾螈求偶中雌性到雄性的交流的新视角。
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Evolution of Reproductive Behavior.生殖行为的演化。
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