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Purcell J, Pruitt JN. Are personalities genetically determined? Inferences from subsocial spiders. BMC Genomics 2019; 20:867. [PMID: 31752670 PMCID: PMC6873478 DOI: 10.1186/s12864-019-6172-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Accepted: 10/02/2019] [Indexed: 11/25/2022] Open
Abstract
Background Recent research has revealed that polymorphic behavioral strategies shape intra-and interspecific interactions and contribute to fitness in many animal species. A better understanding of the proximate mechanisms underlying these behavioral syndromes will enhance our grasp this phenomenon. Spiders in the genus Anelosimus exhibit inter-individual behavioral variation on several axes: individuals have consistent responses to stimuli (e.g. bold vs. shy individuals) and they are subsocial (exhibiting extended maternal care and sibling cooperation) across most of their range, but they sometimes form permanent social groups in northern temperate regions. Here, we seek genetic variants associated with boldness and with social structure in a socially polymorphic population of the spider Anelosimus studiosus. We also develop preliminary genomic resources, including a genome assembly and linkage map, that support this and future genomic research on this group. Results Remarkably, we identify a small genomic scaffold (~ 1200 bp) that harbors seven single nucleotide polymorphisms (SNPs) associated with boldness. Moreover, heterozygotes are less common than expected based on Hardy-Weinberg equilibrium, suggesting that either assortative mating or selection against heterozygotes may be occurring in this system. We find no loci significantly associated with social organization. Our draft genome assembly allows us to localize SNPs of interest in this study and to carry out genetic comparisons with other published genomes, although it remains highly fragmented. Conclusions By identifying a locus associated with a well-studied animal personality trait, this study opens up avenues for future research to link behavioral studies of animal personality with genotype and fitness.
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Affiliation(s)
- Jessica Purcell
- Department of Entomology, University of California Riverside, 900 University Ave, Riverside, CA, 92521, USA.
| | - Jonathan N Pruitt
- Department of Psychology, Neuroscience and Behaviour, McMaster University, 1280 Main Street West, Hamilton, ON, L8S 4K1, Canada
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Junghanns A, Holm C, Schou MF, Overgaard J, Malte H, Uhl G, Bilde T. Physiological Adaptations to Extreme Maternal and Allomaternal Care in Spiders. Front Ecol Evol 2019. [DOI: 10.3389/fevo.2019.00305] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Zawbaa HM, Schiano S, Perez-Gandarillas L, Grosan C, Michrafy A, Wu CY. Computational intelligence modelling of pharmaceutical tabletting processes using bio-inspired optimization algorithms. ADV POWDER TECHNOL 2018. [DOI: 10.1016/j.apt.2018.11.008] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Brown CR, Brown MB. Extreme group sizes in a colonial bird favored during a rare climatic event. Ecosphere 2018. [DOI: 10.1002/ecs2.2428] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- Charles R. Brown
- Department of Biological Sciences University of Tulsa 800 S. Tucker Dr. Tulsa Oklahoma 74104 USA
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Intense group selection selects for ideal group compositions, but selection within groups maintains them. Anim Behav 2017. [DOI: 10.1016/j.anbehav.2016.11.028] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Zawbaa HM, Szlȩk J, Grosan C, Jachowicz R, Mendyk A. Computational Intelligence Modeling of the Macromolecules Release from PLGA Microspheres-Focus on Feature Selection. PLoS One 2016; 11:e0157610. [PMID: 27315205 PMCID: PMC4912096 DOI: 10.1371/journal.pone.0157610] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Accepted: 06/01/2016] [Indexed: 12/13/2022] Open
Abstract
Poly-lactide-co-glycolide (PLGA) is a copolymer of lactic and glycolic acid. Drug release from PLGA microspheres depends not only on polymer properties but also on drug type, particle size, morphology of microspheres, release conditions, etc. Selecting a subset of relevant properties for PLGA is a challenging machine learning task as there are over three hundred features to consider. In this work, we formulate the selection of critical attributes for PLGA as a multiobjective optimization problem with the aim of minimizing the error of predicting the dissolution profile while reducing the number of attributes selected. Four bio-inspired optimization algorithms: antlion optimization, binary version of antlion optimization, grey wolf optimization, and social spider optimization are used to select the optimal feature set for predicting the dissolution profile of PLGA. Besides these, LASSO algorithm is also used for comparisons. Selection of crucial variables is performed under the assumption that both predictability and model simplicity are of equal importance to the final result. During the feature selection process, a set of input variables is employed to find minimum generalization error across different predictive models and their settings/architectures. The methodology is evaluated using predictive modeling for which various tools are chosen, such as Cubist, random forests, artificial neural networks (monotonic MLP, deep learning MLP), multivariate adaptive regression splines, classification and regression tree, and hybrid systems of fuzzy logic and evolutionary computations (fugeR). The experimental results are compared with the results reported by Szlȩk. We obtain a normalized root mean square error (NRMSE) of 15.97% versus 15.4%, and the number of selected input features is smaller, nine versus eleven.
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Affiliation(s)
- Hossam M. Zawbaa
- Faculty of Mathematics and Computer Science, Babes-Bolyai University, Cluj-Napoca, Romania
- Faculty of Computers and Information, Beni-Suef University, Beni-Suef, Egypt
| | - Jakub Szlȩk
- Department of Pharmaceutical Technology and Biopharmaceutics, Jagiellonian University Medical College, Krakow, Poland
| | - Crina Grosan
- Faculty of Mathematics and Computer Science, Babes-Bolyai University, Cluj-Napoca, Romania
- College of Engineering, Design and Physical Sciences, Brunel University, London, United Kingdom
| | - Renata Jachowicz
- Department of Pharmaceutical Technology and Biopharmaceutics, Jagiellonian University Medical College, Krakow, Poland
| | - Aleksander Mendyk
- Department of Pharmaceutical Technology and Biopharmaceutics, Jagiellonian University Medical College, Krakow, Poland
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Seaborn T, Catley K. Abiotic Microhabitat Parameters of the Spruce—Fir Moss Spider, Microhexura montivagaCrosby and Bishop (Araneae: Dipluridae). SOUTHEAST NAT 2016. [DOI: 10.1656/058.015.0105] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Majer M, Agnarsson I, Svenning JC, Bilde T. Social spiders of the genus Anelosimus occur in wetter, more productive environments than non-social species. Naturwissenschaften 2013; 100:1031-40. [PMID: 24177705 DOI: 10.1007/s00114-013-1106-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2013] [Revised: 09/23/2013] [Accepted: 10/07/2013] [Indexed: 11/27/2022]
Abstract
Latitude, rainfall, and productivity have been shown to influence social organisation and level of sociality in arthropods on large geographic scales. Social spiders form permanent group-living societies where they cooperate in brood care, web maintenance, and foraging. Sociality has evolved independently in a number of unrelated spider genera and may reflect convergent evolutionary responses to common environmental drivers. The genus Anelosimus contains a third of approximately 25 described permanently social spider species, eight to nine species that all occur in the Americas. To test for environmental correlates of sociality in Anelosimus across the Americas, we used logistic regression to detect effects of annual rainfall, productivity, and precipitation seasonality on the relative likelihood of occurrence of social and non-social Anelosimus spiders. Our analyses show that social species tend to occur at higher annual rainfall and productivity than non-social species, supporting the hypothesised effects of these environmental variables on the geographical distribution of social species. We did not find support for the hypothesis that permanently social species occur in areas with low precipitation seasonality. High annual precipitation and, to less extent, high productivity favour the occurrence of permanently group-living Anelosimus spiders relative to subsocial and solitary species. These results are partially consistent with previous findings for the Old World spider genus Stegodyphus, where a link between high habitat productivity and sociality was also found. Unlike Anelosimus, however, Stegodyphus typically occur in dry habitats negating a general importance of high precipitation for sociality. Sociality in spiders thus seems to be strongly linked to productivity, probably reflecting the need for relatively high availability of large prey to sustain social colonies.
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Affiliation(s)
- Marija Majer
- Department of Bioscience, Aarhus University, Ny Munkegade 116, 8000, Aarhus-C, Denmark,
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Indiscriminate care of offspring predates the evolution of sociality in alloparenting social spiders. Behav Ecol Sociobiol 2013. [DOI: 10.1007/s00265-013-1555-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Hoiss B, Krauss J, Potts SG, Roberts S, Steffan-Dewenter I. Altitude acts as an environmental filter on phylogenetic composition, traits and diversity in bee communities. Proc Biol Sci 2012; 279:4447-56. [PMID: 22933374 DOI: 10.1098/rspb.2012.1581] [Citation(s) in RCA: 111] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Knowledge about the phylogeny and ecology of communities along environmental gradients helps to disentangle the role of competition-driven processes and environmental filtering for community assembly. In this study, we evaluated patterns in species richness, phylogenetic structure and life-history traits of bee communities along altitudinal gradients in the Alps, Germany. We found a linear decline in species richness and abundance but increasing phylogenetic clustering in communities with increasing altitude. The proportion of social- and ground-nesting species, as well as mean body size and altitudinal range of bee communities, increased with increasing altitude, whereas the mean geographical distribution decreased. Our results suggest that community assembly at high altitudes is dominated by environmental filtering effects, whereas the relative importance of competition increases at low altitudes. We conclude that inherent phylogenetic and ecological species attributes at high altitudes pose a threat for less competitive alpine specialists with ongoing climate change.
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Affiliation(s)
- Bernhard Hoiss
- Department of Animal Ecology and Tropical Biology, Biocentre, University of Würzburg, Am Hubland, Würzburg, Germany.
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Pruitt JN, Iturralde G, Avilés L, Riechert SE. Amazonian social spiders share similar within-colony behavioural variation and behavioural syndromes. Anim Behav 2011. [DOI: 10.1016/j.anbehav.2011.09.030] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Pruitt JN, Demes KW, Dittrich-Reed DR. Temperature Mediates Shifts in Individual Aggressiveness, Activity Level, and Social Behavior in a Spider. Ethology 2011. [DOI: 10.1111/j.1439-0310.2011.01877.x] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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DUNCAN SARAHI, RIECHERT SUSANE, FITZPATRICK BENJAMINM, FORDYCE JAMESA. Relatedness and genetic structure in a socially polymorphic population of the spiderAnelosimus studiosus. Mol Ecol 2010; 19:810-8. [DOI: 10.1111/j.1365-294x.2010.04523.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Agnarsson I, Kuntner M, Coddington JA, Blackledge TA. Shifting continents, not behaviours: independent colonization of solitary and subsocialAnelosimusspider lineages on Madagascar (Araneae, Theridiidae). ZOOL SCR 2010. [DOI: 10.1111/j.1463-6409.2009.00406.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Smith CF, Schuett GW, Earley RL, Schwenk K. The Spatial and Reproductive Ecology of the Copperhead (Agkistrodon contortrix) at the Northeastern Extreme of Its Range. HERPETOLOGICAL MONOGRAPHS 2009. [DOI: 10.1655/08-026.1] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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RUCH JASMIN, HEINRICH LISA, BILDE TRINE, SCHNEIDER JUTTAM. The evolution of social inbreeding mating systems in spiders: limited male mating dispersal and lack of pre-copulatory inbreeding avoidance in a subsocial predecessor. Biol J Linn Soc Lond 2009. [DOI: 10.1111/j.1095-8312.2009.01322.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Pruitt JN, Riechert SE. Frequency-dependent success of cheaters during foraging bouts might limit their spread within colonies of a socially polymorphic spider. Evolution 2009; 63:2966-73. [PMID: 19619222 DOI: 10.1111/j.1558-5646.2009.00771.x] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Although several studies have demonstrated that frequency-dependent effects can promote the maintenance of cooperative behavior in microbes, experimental evidence of frequency-dependent effects in cooperative animal societies is rare. We staged mixed phenotype feeding bouts in the spider Anelosimus studiosus, which shows a within-population social polymorphism, to determine how phenotype frequency affects the foraging success of the social (cooperative) and asocial (cheater) phenotypes. Foraging performance was inferred from average change in percent mass for the respective phenotypes after staged group foraging events. We then performed a field census of multifemale colonies of A. studiosus to determine the phenotypic composition of naturally occurring colonies. Our data indicate that asocial (i.e., cheater) individuals experience negative frequency-dependent foraging success in staged foraging contests. Asocial individuals outperform social individuals when their representation is low, but lose this competitive advantage as their relative numbers increase. Naturally occurring colonies, on average, contained 58.33% social and 41.67% asocial individuals.
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Affiliation(s)
- Jonathan N Pruitt
- Department of Ecology and Evolutionary Biology, University of Tennessee, Knoxville, Tennessee 37996, USA.
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