Cargando…
Rhinoceros beetle horn development reveals deep parallels with dung beetles
Beetle horns are attractive models for studying the evolution of novel traits, as they display diverse shapes, sizes, and numbers among closely related species within the family Scarabaeidae. Horns radiated prolifically and independently in two distant subfamilies of scarabs, the dung beetles (Scara...
Autores principales: | , , , , , , , , , , , , , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2018
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6171792/ https://www.ncbi.nlm.nih.gov/pubmed/30286074 http://dx.doi.org/10.1371/journal.pgen.1007651 |
_version_ | 1783360827106000896 |
---|---|
author | Ohde, Takahiro Morita, Shinichi Shigenobu, Shuji Morita, Junko Mizutani, Takeshi Gotoh, Hiroki Zinna, Robert A. Nakata, Moe Ito, Yuta Wada, Kenshi Kitano, Yasuhiro Yuzaki, Karen Toga, Kouhei Mase, Mutsuki Kadota, Koji Rushe, Jema Lavine, Laura Corley Emlen, Douglas J. Niimi, Teruyuki |
author_facet | Ohde, Takahiro Morita, Shinichi Shigenobu, Shuji Morita, Junko Mizutani, Takeshi Gotoh, Hiroki Zinna, Robert A. Nakata, Moe Ito, Yuta Wada, Kenshi Kitano, Yasuhiro Yuzaki, Karen Toga, Kouhei Mase, Mutsuki Kadota, Koji Rushe, Jema Lavine, Laura Corley Emlen, Douglas J. Niimi, Teruyuki |
author_sort | Ohde, Takahiro |
collection | PubMed |
description | Beetle horns are attractive models for studying the evolution of novel traits, as they display diverse shapes, sizes, and numbers among closely related species within the family Scarabaeidae. Horns radiated prolifically and independently in two distant subfamilies of scarabs, the dung beetles (Scarabaeinae), and the rhinoceros beetles (Dynastinae). However, current knowledge of the mechanisms underlying horn diversification remains limited to a single genus of dung beetles, Onthophagus. Here we unveil 11 horn formation genes in a rhinoceros beetle, Trypoxylus dichotomus. These 11 genes are mostly categorized as larval head- and appendage-patterning genes that also are involved in Onthophagus horn formation, suggesting the same suite of genes was recruited in each lineage during horn evolution. Although our RNAi analyses reveal interesting differences in the functions of a few of these genes, the overwhelming conclusion is that both head and thoracic horns develop similarly in Trypoxylus and Onthophagus, originating in the same developmental regions and deploying similar portions of appendage patterning networks during their growth. Our findings highlight deep parallels in the development of rhinoceros and dung beetle horns, suggesting either that both horn types arose in the common ancestor of all scarabs, a surprising reconstruction of horn evolution that would mean the majority of scarab species (~35,000) actively repress horn growth, or that parallel origins of these extravagant structures resulted from repeated co-option of the same underlying developmental processes. |
format | Online Article Text |
id | pubmed-6171792 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-61717922018-10-19 Rhinoceros beetle horn development reveals deep parallels with dung beetles Ohde, Takahiro Morita, Shinichi Shigenobu, Shuji Morita, Junko Mizutani, Takeshi Gotoh, Hiroki Zinna, Robert A. Nakata, Moe Ito, Yuta Wada, Kenshi Kitano, Yasuhiro Yuzaki, Karen Toga, Kouhei Mase, Mutsuki Kadota, Koji Rushe, Jema Lavine, Laura Corley Emlen, Douglas J. Niimi, Teruyuki PLoS Genet Research Article Beetle horns are attractive models for studying the evolution of novel traits, as they display diverse shapes, sizes, and numbers among closely related species within the family Scarabaeidae. Horns radiated prolifically and independently in two distant subfamilies of scarabs, the dung beetles (Scarabaeinae), and the rhinoceros beetles (Dynastinae). However, current knowledge of the mechanisms underlying horn diversification remains limited to a single genus of dung beetles, Onthophagus. Here we unveil 11 horn formation genes in a rhinoceros beetle, Trypoxylus dichotomus. These 11 genes are mostly categorized as larval head- and appendage-patterning genes that also are involved in Onthophagus horn formation, suggesting the same suite of genes was recruited in each lineage during horn evolution. Although our RNAi analyses reveal interesting differences in the functions of a few of these genes, the overwhelming conclusion is that both head and thoracic horns develop similarly in Trypoxylus and Onthophagus, originating in the same developmental regions and deploying similar portions of appendage patterning networks during their growth. Our findings highlight deep parallels in the development of rhinoceros and dung beetle horns, suggesting either that both horn types arose in the common ancestor of all scarabs, a surprising reconstruction of horn evolution that would mean the majority of scarab species (~35,000) actively repress horn growth, or that parallel origins of these extravagant structures resulted from repeated co-option of the same underlying developmental processes. Public Library of Science 2018-10-04 /pmc/articles/PMC6171792/ /pubmed/30286074 http://dx.doi.org/10.1371/journal.pgen.1007651 Text en © 2018 Ohde et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
spellingShingle | Research Article Ohde, Takahiro Morita, Shinichi Shigenobu, Shuji Morita, Junko Mizutani, Takeshi Gotoh, Hiroki Zinna, Robert A. Nakata, Moe Ito, Yuta Wada, Kenshi Kitano, Yasuhiro Yuzaki, Karen Toga, Kouhei Mase, Mutsuki Kadota, Koji Rushe, Jema Lavine, Laura Corley Emlen, Douglas J. Niimi, Teruyuki Rhinoceros beetle horn development reveals deep parallels with dung beetles |
title | Rhinoceros beetle horn development reveals deep parallels with dung beetles |
title_full | Rhinoceros beetle horn development reveals deep parallels with dung beetles |
title_fullStr | Rhinoceros beetle horn development reveals deep parallels with dung beetles |
title_full_unstemmed | Rhinoceros beetle horn development reveals deep parallels with dung beetles |
title_short | Rhinoceros beetle horn development reveals deep parallels with dung beetles |
title_sort | rhinoceros beetle horn development reveals deep parallels with dung beetles |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6171792/ https://www.ncbi.nlm.nih.gov/pubmed/30286074 http://dx.doi.org/10.1371/journal.pgen.1007651 |
work_keys_str_mv | AT ohdetakahiro rhinocerosbeetlehorndevelopmentrevealsdeepparallelswithdungbeetles AT moritashinichi rhinocerosbeetlehorndevelopmentrevealsdeepparallelswithdungbeetles AT shigenobushuji rhinocerosbeetlehorndevelopmentrevealsdeepparallelswithdungbeetles AT moritajunko rhinocerosbeetlehorndevelopmentrevealsdeepparallelswithdungbeetles AT mizutanitakeshi rhinocerosbeetlehorndevelopmentrevealsdeepparallelswithdungbeetles AT gotohhiroki rhinocerosbeetlehorndevelopmentrevealsdeepparallelswithdungbeetles AT zinnaroberta rhinocerosbeetlehorndevelopmentrevealsdeepparallelswithdungbeetles AT nakatamoe rhinocerosbeetlehorndevelopmentrevealsdeepparallelswithdungbeetles AT itoyuta rhinocerosbeetlehorndevelopmentrevealsdeepparallelswithdungbeetles AT wadakenshi rhinocerosbeetlehorndevelopmentrevealsdeepparallelswithdungbeetles AT kitanoyasuhiro rhinocerosbeetlehorndevelopmentrevealsdeepparallelswithdungbeetles AT yuzakikaren rhinocerosbeetlehorndevelopmentrevealsdeepparallelswithdungbeetles AT togakouhei rhinocerosbeetlehorndevelopmentrevealsdeepparallelswithdungbeetles AT masemutsuki rhinocerosbeetlehorndevelopmentrevealsdeepparallelswithdungbeetles AT kadotakoji rhinocerosbeetlehorndevelopmentrevealsdeepparallelswithdungbeetles AT rushejema rhinocerosbeetlehorndevelopmentrevealsdeepparallelswithdungbeetles AT lavinelauracorley rhinocerosbeetlehorndevelopmentrevealsdeepparallelswithdungbeetles AT emlendouglasj rhinocerosbeetlehorndevelopmentrevealsdeepparallelswithdungbeetles AT niimiteruyuki rhinocerosbeetlehorndevelopmentrevealsdeepparallelswithdungbeetles |