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Toyoshima N, Matsuo T. Fight outcome influences male mating success in Drosophila prolongata. J ETHOL 2023. [DOI: 10.1007/s10164-023-00778-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
AbstractThe outcomes of preceding fights can influence the probability of winning a subsequent fight, known as the winner/loser effect. However, we know relatively little about how the experience of a preceding fight influences subsequent mating success. Here, we investigated the influence of preceding fight outcomes on subsequent mating behavior in a fruit fly Drosophila prolongata. Subordinate males mated less in two-choice mating assays, showing that the fight outcome predicts male mating success in this species. This tendency remained in a no-choice mating assay where direct interaction between the dominant and subordinate males was eliminated, suggesting that the mating disadvantage of the subordinate males was dependent on the experience of the previous fight rather than the direct interference by the dominant male. When a no-choice mating assay was performed before the fight, the prospective subordinate males mated at the same rate as the dominant males, confirming that the intrinsic male qualities in fighting and mating performances were independent of each other in our experiments. These results indicated that the experience-dependent changes in the subordinate males led to the reduced mating success.
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2
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Perdigón Ferreira J, Rohner PT, Lüpold S. Strongly sexually dimorphic forelegs are not more condition-dependent than less dimorphic traits in Drosophila prolongata. Evol Ecol 2023; 37:493-508. [PMID: 37152714 PMCID: PMC10156779 DOI: 10.1007/s10682-022-10226-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Accepted: 12/15/2022] [Indexed: 01/11/2023]
Abstract
AbstractDirectional sexual selection drives the evolution of traits that are most closely linked to reproductive success, giving rise to trait exaggeration and sexual dimorphism. Exaggerated structures are often costly and, therefore, thought to be expressed in a condition-dependent manner. Sexual selection theory thus predicts a direct link between directional sexual selection, sexual dimorphism, and sex-specific condition dependence. However, only a handful of studies investigate the relationship between sexual dimorphism and condition dependence. Using 21 genetic lines of Drosophila prolongata, we here compared the degree of sexual dimorphism and sex-specific condition dependence, measured as allometric slopes, in sexually selected and non-sexual traits. Our data revealed male-biased sexual dimorphism in all traits examined, most prominently in the sexually selected forelegs. However, there was no relationship between the degree of sex-specific condition dependence and sexual dimorphism across traits and genetic lines. Our results contradict theoretical predictions and highlight the importance of understanding the role of exaggerated traits in the context of both sexual and natural selection.
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Affiliation(s)
- Jhoniel Perdigón Ferreira
- Department of Evolutionary Biology and Environmental Studies, University of Zürich, Winterthurerstrasse 190, 8057 Zürich, Switzerland
| | - Patrick T. Rohner
- Department of Biology, Indiana University, 915 East Third Street, 102 Myers Hall, Bloomington, IN 47405 USA
| | - Stefan Lüpold
- Department of Evolutionary Biology and Environmental Studies, University of Zürich, Winterthurerstrasse 190, 8057 Zürich, Switzerland
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3
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Yoshimizu T, Akutsu J, Matsuo T. An Indirect Cost of Male-Male Aggression Arising from Female Response. Zoolog Sci 2022; 39:514-520. [PMID: 36495486 DOI: 10.2108/zs210116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Accepted: 07/05/2022] [Indexed: 12/14/2022]
Abstract
Animal behavior is often polymorphic between individuals within a population. A cost/benefit balance of a particular behavioral pattern may be influenced by social interaction with other individuals with different behavioral patterns. Males of a fruitfly, Drosophila prolongata, show genetically defined polymorphism in aggressiveness and boldness against rival males. Males of the H strain are highly aggressive, and their fights tend to escalate into boxing, the highest level of aggressive interaction. H males are also bold against sneaker males and do not hesitate to perform leg vibration (LV), a courtship behavior that is vulnerable to interception of the female by surrounding rival males. In contrast, males of the L strain rarely engage in boxing and do not perform LV in the presence of rival males. We examined their mating success in small experimental populations. The mating success of L males was higher in a pure L population than in a mixed population with H males, whereas that of H males was higher in a mixed population than in a pure H population. Notably, this 'cost of aggression' in a pure H population seemed not directly derived from the male-to-male interaction but was imposed by the female's response of escaping from fighting males, compromising the benefit of the resource monopolization as territory.
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Affiliation(s)
- Toshiki Yoshimizu
- Laboratory of Applied Entomology, The University of Tokyo, Tokyo 113-8657, Japan
| | - Junichi Akutsu
- Laboratory of Applied Entomology, The University of Tokyo, Tokyo 113-8657, Japan
| | - Takashi Matsuo
- Laboratory of Applied Entomology, The University of Tokyo, Tokyo 113-8657, Japan,
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4
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Sakugawa N, Kasamura K, Christy JH, Henmi Y. Claws and claw waving attract both sexes in the dotillid crab Ilyoplax pusilla. J ETHOL 2021. [DOI: 10.1007/s10164-021-00692-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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5
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Minekawa K, Amino K, Matsuo T. A courtship behavior that makes monandrous females polyandrous. Evolution 2020; 74:2483-2493. [DOI: 10.1111/evo.14098] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 09/04/2020] [Accepted: 09/13/2020] [Indexed: 01/16/2023]
Affiliation(s)
- Kazuyoshi Minekawa
- Laboratory of Applied Entomology Department of Agricultural and Environmental Biology The University of Tokyo Tokyo 113–8657 Japan
| | - Kai Amino
- Laboratory of Applied Entomology Department of Agricultural and Environmental Biology The University of Tokyo Tokyo 113–8657 Japan
| | - Takashi Matsuo
- Laboratory of Applied Entomology Department of Agricultural and Environmental Biology The University of Tokyo Tokyo 113–8657 Japan
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6
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Food availability reverses the effect of hunger state on copulation rate in Drosophila prolongata females. Anim Behav 2020. [DOI: 10.1016/j.anbehav.2020.06.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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7
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Jezovit JA, Rooke R, Schneider J, Levine JD. Behavioral and environmental contributions to drosophilid social networks. Proc Natl Acad Sci U S A 2020; 117:11573-11583. [PMID: 32404421 PMCID: PMC7261129 DOI: 10.1073/pnas.1920642117] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Animals interact with each other in species-specific reproducible patterns. These patterns of organization are captured by social network analysis, and social interaction networks (SINs) have been described for a wide variety of species including fish, insects, birds, and mammals. The aim of this study is to understand the evolution of social organization in Drosophila Using a comparative ecological, phylogenetic, and behavioral approach, the different properties of SINs formed by 20 drosophilids were compared. We investigate whether drosophilid network structures arise from common ancestry, a response to the species' past climate, other social behaviors, or a combination of these factors. This study shows that differences in past climate predicted the species' current SIN properties. The drosophilid phylogeny offered no value to predicting species' differences in SINs through phylogenetic signal tests. This suggests that group-level social behaviors in drosophilid species are shaped by divergent climates. However, we find that the social distance at which flies interact correlated with the drosophilid phylogeny, indicating that behavioral elements of SINs have remained largely unchanged in their evolutionary history. We find a significant correlation of leg length to social distance, outlining the interdependence of anatomy and complex social structures. Although SINs display a complex evolutionary relationship across drosophilids, this study suggests that the ecology, and not common ancestry, contributes to diversity in social structure in Drosophila.
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Affiliation(s)
- Jacob A Jezovit
- Department of Biology, University of Toronto Mississauga, Mississauga, ON L5L 1C6, Canada
| | - Rebecca Rooke
- Department of Biology, University of Toronto Mississauga, Mississauga, ON L5L 1C6, Canada
| | - Jonathan Schneider
- Department of Biology, University of Toronto Mississauga, Mississauga, ON L5L 1C6, Canada
| | - Joel D Levine
- Department of Biology, University of Toronto Mississauga, Mississauga, ON L5L 1C6, Canada
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8
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Luo Y, Zhang Y, Farine J, Ferveur J, Ramírez S, Kopp A. Evolution of sexually dimorphic pheromone profiles coincides with increased number of male-specific chemosensory organs in Drosophila prolongata. Ecol Evol 2019; 9:13608-13618. [PMID: 31871670 PMCID: PMC6912897 DOI: 10.1002/ece3.5819] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 10/03/2019] [Accepted: 10/14/2019] [Indexed: 11/24/2022] Open
Abstract
Binary communication systems that involve sex-specific signaling and sex-specific signal perception play a key role in sexual selection and in the evolution of sexually dimorphic traits. The driving forces and genetic changes underlying such traits can be investigated in systems where sex-specific signaling and perception have emerged recently and show evidence of potential coevolution. A promising model is found in Drosophila prolongata, which exhibits a species-specific increase in the number of male chemosensory bristles. We show that this transition coincides with recent evolutionary changes in cuticular hydrocarbon (CHC) profiles. Long-chain CHCs that are sexually monomorphic in the closest relatives of D. prolongata (D. rhopaloa, D. carrolli, D. kurseongensis, and D. fuyamai) are strongly male-biased in this species. We also identify an intraspecific female-limited polymorphism, where some females have male-like CHC profiles. Both the origin of sexually dimorphic CHC profiles and the female-limited polymorphism in D. prolongata involve changes in the relative amounts of three mono-alkene homologs, 9-tricosene, 9-pentacosene, and 9-heptacosene, all of which share a common biosynthetic origin and point to a potentially simple genetic change underlying these traits. Our results suggest that pheromone synthesis may have coevolved with chemosensory perception and open the way for reconstructing the origin of sexual dimorphism in this communication system.
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Affiliation(s)
- Yige Luo
- Department of Evolution and EcologyUniversity of California‐DavisDavisCAUSA
| | - Yunwei Zhang
- Department of StatisticsUniversity of California‐DavisDavisCAUSA
- Present address:
School of Mathematics and StatisticsUniversity of SydneySydneyNSWAustralia
| | - Jean‐Pierre Farine
- Centre des Sciences du Goût et de l'AlimentationUniversité de Bourgogne‐DijonDijonFrance
| | - Jean‐François Ferveur
- Centre des Sciences du Goût et de l'AlimentationUniversité de Bourgogne‐DijonDijonFrance
| | - Santiago Ramírez
- Department of Evolution and EcologyUniversity of California‐DavisDavisCAUSA
| | - Artyom Kopp
- Department of Evolution and EcologyUniversity of California‐DavisDavisCAUSA
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9
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Corral-López A, Romensky M, Kotrschal A, Buechel SD, Kolm N. Brain size affects responsiveness in mating behaviour to variation in predation pressure and sex ratio. J Evol Biol 2019; 33:165-177. [PMID: 31610058 DOI: 10.1111/jeb.13556] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Revised: 09/24/2019] [Accepted: 10/03/2019] [Indexed: 12/25/2022]
Abstract
Despite ongoing advances in sexual selection theory, the evolution of mating decisions remains enigmatic. Cognitive processes often require simultaneous processing of multiple sources of information from environmental and social cues. However, little experimental data exist on how cognitive ability affects such fitness-associated aspects of behaviour. Using advanced tracking techniques, we studied mating behaviours of guppies artificially selected for divergence in relative brain size, with known differences in cognitive ability, when predation threat and sex ratio was varied. In females, we found a general increase in copulation behaviour in when the sex ratio was female biased, but only large-brained females responded with greater willingness to copulate under a low predation threat. In males, we found that small-brained individuals courted more intensively and displayed more aggressive behaviours than large-brained individuals. However, there were no differences in female response to males with different brain size. These results provide further evidence of a role for female brain size in optimal decision-making in a mating context. In addition, our results indicate that brain size may affect mating display skill in male guppies. We suggest that it is important to consider the association between brain size, cognitive ability and sexual behaviour when studying how morphological and behavioural traits evolve in wild populations.
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Affiliation(s)
- Alberto Corral-López
- Department of Zoology/Ethology, Stockholm University, Stockholm, Sweden.,Division of Biosciences, Genetics, Evolution & Environment, University College of London, London, UK
| | - Maksym Romensky
- Department of Mathematics, Uppsala University, Uppsala, Sweden.,Department of Life Sciences, Imperial College London, London, UK
| | - Alexander Kotrschal
- Department of Zoology/Ethology, Stockholm University, Stockholm, Sweden.,Behavioural Ecology Group, Wageningen University, Wageningen, The Netherlands
| | | | - Niclas Kolm
- Department of Zoology/Ethology, Stockholm University, Stockholm, Sweden
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10
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Chen AL, Chen CC, Katoh T, Katoh TK, Watada M, Toda MJ, Ritchie MG, Wen SY. Evolution and diversity of the courtship repertoire in the Drosophila montium species group (Diptera: Drosophilidae). J Evol Biol 2019; 32:1124-1140. [PMID: 31386239 DOI: 10.1111/jeb.13515] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Accepted: 07/31/2019] [Indexed: 02/04/2023]
Abstract
Changes in elements of courtship behaviour can influence sexual isolation between species. Large-scale analyses of changes, including loss and gain of courtship elements, across a relatively complete phylogenetic group are rare but needed to understand the significance of such changes, for example whether the gain and loss of courtship elements are essentially arbitrary or equally reversible. In most species of Drosophila, courtship, including singing, mainly occurs before mounting as premounting courtship. The Drosophila montium species group is unusual because loss of premounting courtship and gain of post-mounting one has been detected in this group. Here, we provide an extensive analysis on the courtship repertoire and songs of 42 species in this group. Synchronously captured video and audio recordings were analysed to describe courtship patterns and male courtship songs, and changes were analysed in a phylogenetic context. Ancestral state reconstruction suggests that a gain of post-mounting courtship singing at the ancestor of this species group has been accompanied by a concurrent decrease in the incidence of premounting courtship singing and has led to subsequent further decrease and eventually complete loss of premounting courtship song in several lineages. Alongside this evolutionary trend towards post-mounting courtship, sine song and a special type of "high pulse repetition song" have become more widely used for courtship during species diversification in the montium group. It is likely that the elaboration of post-mounting courtship behaviours is associated with changes in the relative importance of pre- and post-mounting components of mating systems, such as sperm competition or cryptic female choice.
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Affiliation(s)
- Ai-Li Chen
- Department of Entomology, College of Agriculture, South China Agricultural University, Guangzhou, China
| | - Chuan-Cheng Chen
- Department of Entomology, College of Agriculture, South China Agricultural University, Guangzhou, China
| | - Toru Katoh
- Department of Biological Sciences, Faculty of Science, Hokkaido University, Sapporo, Japan
| | - Takehiro K Katoh
- Graduate School of Science and Engineering, Ehime University, Matsuyama, Ehime, Japan
| | - Masayoshi Watada
- Graduate School of Science and Engineering, Ehime University, Matsuyama, Ehime, Japan
| | - Masanori J Toda
- The Hokkaido University Museum, Hokkaido University, Sapporo, Japan
| | | | - Shuo-Yang Wen
- Department of Entomology, College of Agriculture, South China Agricultural University, Guangzhou, China
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11
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Darden SK, May MK, Boyland NK, Dabelsteen T. Territorial defense in a network: audiences only matter to male fiddler crabs primed for confrontation. Behav Ecol 2019. [DOI: 10.1093/beheco/ary169] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Safi K Darden
- Centre for Research in Animal Behaviour, Department of Psychology, College of Life and Environmental Sciences, University of Exeter, Washington Singer Laboratories, Exeter, UK
| | - Maggie K May
- Centre for Research in Animal Behaviour, Department of Psychology, College of Life and Environmental Sciences, University of Exeter, Washington Singer Laboratories, Exeter, UK
| | - Natasha K Boyland
- Centre for Research in Animal Behaviour, Department of Psychology, College of Life and Environmental Sciences, University of Exeter, Washington Singer Laboratories, Exeter, UK
- Compassion in World Farming, River Court, Godalming, Surrey, UK
| | - Torben Dabelsteen
- Behavioural Ecology Group, Department of Biology, University of Copenhagen, København Ø, Denmark
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12
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Órfão I, Barbosa M, Ojanguren AF, Vicente L, Varela SAM, Magurran AE. Me against who? Male guppies adjust mating behaviour according to their rival’s presence and attractiveness. Ethology 2019. [DOI: 10.1111/eth.12864] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Inês Órfão
- CFCUL – Centro de Filosofia das Ciências da Universidade de Lisboa, Faculdade de Ciências Universidade de Lisboa Lisboa Portugal
- cE3c – Centre for Ecology, Evolution and Environmental Changes, Faculdade de Ciências Universidade de Lisboa Lisboa Portugal
- Centre for Biological Diversity, School of Biology University of St Andrews St Andrews UK
| | - Miguel Barbosa
- Centre for Biological Diversity, School of Biology University of St Andrews St Andrews UK
- CESAM – Centro de Estudos do Ambiente e do Mar Universidade de Aveiro Aveiro Portugal
| | - Alfredo F. Ojanguren
- Centre for Biological Diversity, School of Biology University of St Andrews St Andrews UK
| | - Luís Vicente
- CFCUL – Centro de Filosofia das Ciências da Universidade de Lisboa, Faculdade de Ciências Universidade de Lisboa Lisboa Portugal
| | - Susana A. M. Varela
- cE3c – Centre for Ecology, Evolution and Environmental Changes, Faculdade de Ciências Universidade de Lisboa Lisboa Portugal
- IGC – Instituto Gulbenkian de Ciência Oeiras Portugal
| | - Anne E. Magurran
- Centre for Biological Diversity, School of Biology University of St Andrews St Andrews UK
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13
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Minekawa K, Miyatake T, Ishikawa Y, Matsuo T. The adaptive role of a species-specific courtship behaviour in coping with remating suppression of mated females. Anim Behav 2018. [DOI: 10.1016/j.anbehav.2018.04.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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14
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Kudo A, Awasaki T, Ishikawa Y, Matsuo T. piggyBac- and phiC31 integrase-mediated transgenesis in Drosophila prolongata. Genes Genet Syst 2018; 92:277-285. [PMID: 29151455 DOI: 10.1266/ggs.17-00024] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The development of transgenesis systems in non-model organisms provides a powerful tool for molecular analysis and contributes to the understanding of phenomena that are not observed in model organisms. Drosophila prolongata is a fruit fly that has unique morphology and behavior not found in other Drosophila species including D. melanogaster. In this study, we developed a phiC31 integrase-mediated transgenesis system for D. prolongata. First, using piggyBac-mediated transgenesis, 37 homozygous attP strains were established. These strains were further transformed with the nosP-Cas9 vector, which was originally designed for phiC31-mediated transgenesis in D. melanogaster. The transformation rate varied from 0% to 3.4%. Nine strains with a high transformation rate of above 2.0% were established, which will serve as host strains in future transformation experiments in D. prolongata. Our results demonstrate that genetic tools developed for D. melanogaster are applicable to D. prolongata with minimal modifications.
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Affiliation(s)
- Ayumi Kudo
- Department of Agricultural and Environmental Biology, The University of Tokyo
| | | | - Yukio Ishikawa
- Department of Agricultural and Environmental Biology, The University of Tokyo
| | - Takashi Matsuo
- Department of Agricultural and Environmental Biology, The University of Tokyo
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15
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Matsuo T. Effect of social condition on behavioral development during early adult phase in Drosophila prolongata. J ETHOL 2017; 36:15-22. [PMID: 30679882 PMCID: PMC6323083 DOI: 10.1007/s10164-017-0524-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Accepted: 08/07/2017] [Indexed: 01/12/2023]
Abstract
Behavioral changes during early development provide useful insights into the internal mechanisms that generate complex behavior expressed by mature individuals. At the same time, social conditions during early adult phase can influence behavior in later stages of development even in holometabolous insects. In this study, age-dependent changes in courtship behavior and the effect of social conditions were examined in a fruit fly, Drosophila prolongata. Younger males showed lower mating activity and simpler courtship behavior. Mating activity reached a maximum level by 5 days after eclosion, whereas expression of complex courtship behavior was not yet fully developed at that time, suggesting that they are controlled by different mechanisms. When two males were maintained in the same vial, not only mating activity but also courtship complexity was reduced, demonstrating for the first time that preceding social experience, not current social conditions, influenced the complexity of male courtship. The effect of social experience was completely erased by 1 day of isolation, however, showing that social experience did not suppress or promote behavioral development itself. Rather, these results suggest that the observed effect of social experience was a plastic response of males that reduced investment in courtship effort by anticipating increased male–male competition.
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Affiliation(s)
- Takashi Matsuo
- Department of Agricultural and Environmental Biology, The University of Tokyo, Yayoi 1-1-1, Bunkyo-ku, Tokyo, 113-8657 Japan
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16
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Kudo A, Shigenobu S, Kadota K, Nozawa M, Shibata TF, Ishikawa Y, Matsuo T. Comparative analysis of the brain transcriptome in a hyper-aggressive fruit fly, Drosophila prolongata. INSECT BIOCHEMISTRY AND MOLECULAR BIOLOGY 2017; 82:11-20. [PMID: 28115271 DOI: 10.1016/j.ibmb.2017.01.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Revised: 01/16/2017] [Accepted: 01/17/2017] [Indexed: 06/06/2023]
Abstract
Aggressive behavior is observed in many animals, but its intensity differs between species. In a model animal of genetics, Drosophila melanogaster, genetic basis of aggressive behavior has been studied intensively, including transcriptome analyses to identify genes whose expression level was associated with intra-species variation in aggressiveness. However, whether these genes are also involved in the evolution of aggressiveness among different species has not been examined. In this study, we performed de novo transcriptome analysis in the brain of Drosophila prolongata to identify genes associated with the evolution of aggressiveness. Males of D. prolongata were hyper-aggressive compared with closely related species. Comparison of the brain transcriptomes identified 21 differentially expressed genes in males of D. prolongata. They did not overlap with the list of aggression-related genes identified in D. melanogaster, suggesting that genes involved in the evolution of aggressiveness were independent of those associated with the intra-species variation in aggressiveness in Drosophila. Although females of D. prolongata were not aggressive as the males, expression levels of the 21 genes identified in this study were more similar between sexes than between species.
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Affiliation(s)
- Ayumi Kudo
- Department of Agricultural and Environmental Biology, The University of Tokyo, Tokyo, Japan
| | - Shuji Shigenobu
- National Institute for Basic Biology, Okazaki, Japan; Department of Basic Biology, Faculty of Life Science, The Graduate University for Advanced Studies, Okazaki, Japan
| | - Koji Kadota
- Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | | | | | - Yukio Ishikawa
- Department of Agricultural and Environmental Biology, The University of Tokyo, Tokyo, Japan
| | - Takashi Matsuo
- Department of Agricultural and Environmental Biology, The University of Tokyo, Tokyo, Japan.
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17
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Hitoshi Y, Ishikawa Y, Matsuo T. Inheritance Pattern of Female Receptivity inDrosophila prolongata. Zoolog Sci 2016; 33:455-460. [DOI: 10.2108/zs160047] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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