Tzitzi M. Placier-Gallardo , Hugo J. Amaro-Lozada , Raúl Cueva del Castillo
{"title":"新热带螽斯的孤雌生殖","authors":"Tzitzi M. Placier-Gallardo , Hugo J. Amaro-Lozada , Raúl Cueva del Castillo","doi":"10.1016/j.jinsphys.2025.104812","DOIUrl":null,"url":null,"abstract":"<div><div>Parthenogenesis is a widespread reproductive strategy in insects with significant implications in the field of evolutionary biology. Nonetheless, the incidence of parthenogenesis in katydids remains low. Our findings in Los Tuxtlas, Veracruz, Mexico indicate that small proportion of females of <em>Conocephalus ictus</em> are tychoparthenogenetical, marking the first report of a tropical parthenogenetic katydid. Contrary to expectation, parthenogenesis does not appear adaptive for <em>C. ictus</em> females. Wingless parthenogenetic females outnumber their winged counterparts and exhibit larger size. In addition, parthenogenetic females have lower clutch size, hatching success, and offspring reaching adulthood compared to sexual females. The geographical distribution of parthenogenesis has been linked to ice-covered areas during glaciation periods, and the orography of Mexico suggests a potential link between the evolution of parthenogenesis in <em>C. ictus</em> and the ability to disperse effectively and colonize new environments of the parthenogenetic winged females during interglacial periods. Given its distribution, <em>C. ictus</em> offers a valuable model for understanding the impact of climatic factors on the evolutionary trajectory of parthenogenetic organisms in the tropics. Further research on <em>C. ictus</em> and its response to past climatic shifts can provide insights into the adaptive significance of parthenogenesis in evolutionary biology.</div></div>","PeriodicalId":16189,"journal":{"name":"Journal of insect physiology","volume":"163 ","pages":"Article 104812"},"PeriodicalIF":2.3000,"publicationDate":"2025-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Parthenogenesis in the neotropical katydid Conocephalus ictus\",\"authors\":\"Tzitzi M. Placier-Gallardo , Hugo J. Amaro-Lozada , Raúl Cueva del Castillo\",\"doi\":\"10.1016/j.jinsphys.2025.104812\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Parthenogenesis is a widespread reproductive strategy in insects with significant implications in the field of evolutionary biology. Nonetheless, the incidence of parthenogenesis in katydids remains low. Our findings in Los Tuxtlas, Veracruz, Mexico indicate that small proportion of females of <em>Conocephalus ictus</em> are tychoparthenogenetical, marking the first report of a tropical parthenogenetic katydid. Contrary to expectation, parthenogenesis does not appear adaptive for <em>C. ictus</em> females. Wingless parthenogenetic females outnumber their winged counterparts and exhibit larger size. In addition, parthenogenetic females have lower clutch size, hatching success, and offspring reaching adulthood compared to sexual females. The geographical distribution of parthenogenesis has been linked to ice-covered areas during glaciation periods, and the orography of Mexico suggests a potential link between the evolution of parthenogenesis in <em>C. ictus</em> and the ability to disperse effectively and colonize new environments of the parthenogenetic winged females during interglacial periods. Given its distribution, <em>C. ictus</em> offers a valuable model for understanding the impact of climatic factors on the evolutionary trajectory of parthenogenetic organisms in the tropics. Further research on <em>C. ictus</em> and its response to past climatic shifts can provide insights into the adaptive significance of parthenogenesis in evolutionary biology.</div></div>\",\"PeriodicalId\":16189,\"journal\":{\"name\":\"Journal of insect physiology\",\"volume\":\"163 \",\"pages\":\"Article 104812\"},\"PeriodicalIF\":2.3000,\"publicationDate\":\"2025-04-19\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of insect physiology\",\"FirstCategoryId\":\"97\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0022191025000666\",\"RegionNum\":2,\"RegionCategory\":\"农林科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENTOMOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of insect physiology","FirstCategoryId":"97","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0022191025000666","RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENTOMOLOGY","Score":null,"Total":0}
Parthenogenesis in the neotropical katydid Conocephalus ictus
Parthenogenesis is a widespread reproductive strategy in insects with significant implications in the field of evolutionary biology. Nonetheless, the incidence of parthenogenesis in katydids remains low. Our findings in Los Tuxtlas, Veracruz, Mexico indicate that small proportion of females of Conocephalus ictus are tychoparthenogenetical, marking the first report of a tropical parthenogenetic katydid. Contrary to expectation, parthenogenesis does not appear adaptive for C. ictus females. Wingless parthenogenetic females outnumber their winged counterparts and exhibit larger size. In addition, parthenogenetic females have lower clutch size, hatching success, and offspring reaching adulthood compared to sexual females. The geographical distribution of parthenogenesis has been linked to ice-covered areas during glaciation periods, and the orography of Mexico suggests a potential link between the evolution of parthenogenesis in C. ictus and the ability to disperse effectively and colonize new environments of the parthenogenetic winged females during interglacial periods. Given its distribution, C. ictus offers a valuable model for understanding the impact of climatic factors on the evolutionary trajectory of parthenogenetic organisms in the tropics. Further research on C. ictus and its response to past climatic shifts can provide insights into the adaptive significance of parthenogenesis in evolutionary biology.
期刊介绍:
All aspects of insect physiology are published in this journal which will also accept papers on the physiology of other arthropods, if the referees consider the work to be of general interest. The coverage includes endocrinology (in relation to moulting, reproduction and metabolism), pheromones, neurobiology (cellular, integrative and developmental), physiological pharmacology, nutrition (food selection, digestion and absorption), homeostasis, excretion, reproduction and behaviour. Papers covering functional genomics and molecular approaches to physiological problems will also be included. Communications on structure and applied entomology can be published if the subject matter has an explicit bearing on the physiology of arthropods. Review articles and novel method papers are also welcomed.