1
|
Kurpyianova L, Safronova L. A Brief Review of Meiotic Chromosomes in Early Spermatogenesis and Oogenesis and Mitotic Chromosomes in the Viviparous Lizard Zootoca vivipara (Squamata: Lacertidae) with Multiple Sex Chromosomes. Animals (Basel) 2022; 13:ani13010019. [PMID: 36611629 PMCID: PMC9817861 DOI: 10.3390/ani13010019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 12/01/2022] [Accepted: 12/16/2022] [Indexed: 12/24/2022] Open
Abstract
This brief review is focused on the viviparous lizard Zootoca vivipara (Lichtenstein, 1823), of the family Lacertidae, which possesses female heterogamety and multiple sex chromosomes (male 2n = 36, Z1Z1Z2Z2/Z1Z2W, female 2n = 35, with variable W sex chromosome). Multiple sex chromosomes and their changes may influence meiosis and the female meiotic drive, and they may play a role in reproductive isolation. In two cryptic taxa of Z. vivipara with different W sex chromosomes, meiosis during early spermatogenesis and oogenesis proceeds normally, without any disturbances, with the formation of haploid spermatocytes, and in female meiosis with the formation of synaptonemal complexes (SCs) and the lampbrush chromosomes. In females, the SC number was constantly equal to 19 (according to the SC length, 16 SC autosomal bivalents plus three presumed SC sex chromosome elements). No variability in the chromosomes at the early stages of meiotic prophase I, and no significant disturbances in the chromosome segregation at the anaphase-telophase I stage, have been discovered, and haploid oocytes (n = 17) at the metaphase II stage have been revealed. There should be a factor/factors that maintain the multiple sex chromosomes, their equal transmission, and the course of meiosis in these cryptic forms of Z. vivipara.
Collapse
Affiliation(s)
- Larissa Kurpyianova
- Zoological Institute of the Russian Academy of Sciences (ZIN), 199034 Saint Petersburg, Russia
- Correspondence:
| | - Larissa Safronova
- Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, 119071 Moscow, Russia
| |
Collapse
|
2
|
Badiane A, Dupoué A, Blaimont P, Miles DB, Gilbert AL, Leroux-Coyau M, Kawamoto A, Rozen-Rechels D, Meylan S, Clobert J, Le Galliard JF. Environmental conditions and male quality traits simultaneously explain variation of multiple colour signals in male lizards. J Anim Ecol 2022; 91:1906-1917. [PMID: 35837855 PMCID: PMC9542398 DOI: 10.1111/1365-2656.13773] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Accepted: 06/28/2022] [Indexed: 12/01/2022]
Abstract
Male lizards often display multiple pigment‐based and structural colour signals which may reflect various quality traits (e.g. performance, parasitism), with testosterone (T) often mediating these relationships. Furthermore, environmental conditions can explain colour signal variation by affecting processes such as signal efficacy, thermoregulation and camouflage. The relationships between colour signals, male quality traits and environmental factors have often been analysed in isolation, but simultaneous analyses are rare. Thus, the response of multiple colour signals to variation in all these factors in an integrative analysis remains to be investigated. Here, we investigated how multiple colour signals relate to their information content, examined the role of T as a potential mediator of these relationships and how environmental factors explain colour signal variation. We performed an integrative study to examine the covariation between three colour signals (melanin‐based black, carotenoid‐based yellow–orange and structural UV), physiological performance, parasitism, T levels and environmental factors (microclimate, forest cover) in male common lizards Zootoca vivipara from 13 populations. We found that the three colour signals conveyed information on different aspects of male condition, supporting a multiple message hypothesis. T influenced only parasitism, suggesting that T does not directly mediate the relationships between colour signals and their information content. Moreover, colour signals became more saturated in forested habitats, suggesting an adaptation to degraded light conditions, and became generally brighter in mesic conditions, in contradiction with the thermal melanism hypothesis. We show that distinct individual quality traits and environmental factors simultaneously explain variations of multiple colour signals with different production modes. Our study therefore highlights the complexity of colour signal evolution, involving various sets of selective pressures acting at the same time, but in different ways depending on colour production mechanism.
Collapse
Affiliation(s)
- Arnaud Badiane
- Sorbonne Université, CNRS, IRD, INRA, Institut d'écologie et des sciences de l'environnement (IEES), Paris, France
| | - Andréaz Dupoué
- Sorbonne Université, CNRS, IRD, INRA, Institut d'écologie et des sciences de l'environnement (IEES), Paris, France
| | | | - Donald B Miles
- Department of Biological Sciences, Ohio University, Athens, OH, USA
| | | | - Mathieu Leroux-Coyau
- Sorbonne Université, CNRS, IRD, INRA, Institut d'écologie et des sciences de l'environnement (IEES), Paris, France
| | - Anna Kawamoto
- Sorbonne Université, CNRS, IRD, INRA, Institut d'écologie et des sciences de l'environnement (IEES), Paris, France
| | - David Rozen-Rechels
- Sorbonne Université, CNRS, IRD, INRA, Institut d'écologie et des sciences de l'environnement (IEES), Paris, France
| | - Sandrine Meylan
- Sorbonne Université, CNRS, IRD, INRA, Institut d'écologie et des sciences de l'environnement (IEES), Paris, France
| | - Jean Clobert
- Station d'Ecologie Théorique et Expérimentale (SETE), USR5321, CNRS, Moulis, France
| | - Jean-François Le Galliard
- Sorbonne Université, CNRS, IRD, INRA, Institut d'écologie et des sciences de l'environnement (IEES), Paris, France.,Centre de Recherche en Écologie Expérimentale et Prédictive (CEREEP-Ecotron IleDeFrance), Département de biologie, Ecole Normale Supérieure, CNRS, PSL Research University, UMS 3194, Saint-Pierre-lès-Nemours, France
| |
Collapse
|
3
|
Liu W, Liu Y, Liu P, Zhao W. Genetic diversity of major histocompatibility complex class I genes in Zootoca vivipara. Biosci Rep 2020; 40:BSR20193809. [PMID: 32285916 DOI: 10.1042/BSR20193809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 02/26/2020] [Accepted: 04/08/2020] [Indexed: 11/18/2022] Open
Abstract
The Major Histocompatibility Complex (MHC), as a family of highly polymorphic genes associated with immunity in the genome of the vertebrate, has become an important indicator for assessing the evolutionary potential of wildlife. In order to better protect Zootoca vivipara in the Greater Khingan Range and Lesser Khingan Range, to understand the genetic structure of Z. vivipara, and to explore the mechanism and phylogenetic relationship of the gene polymorphisms, the MHC molecular marker method was used to analyze Z. vivipara population. Forty-seven alleles were obtained from four populations. The four populations were highly polymorphic, rich in genetic information, and had significant genetic diversity. There were certain inbreeding phenomena. There was a high degree of genetic differentiation among populations, which was caused by genetic drift and natural selection. The sequence undergoes genetic duplication and recombination. The existence of trans-species polymorphism was found in the constructed phylogenetic tree. The present study provides a theoretical basis for species protection of Z. vivipara.
Collapse
|
4
|
Roitberg ES, Orlova VF, Bulakhova NA, Kuranova VN, Eplanova GV, Zinenko OI, Arribas O, Kratochvíl L, Ljubisavljević K, Starikov VP, Strijbosch H, Hofmann S, Leontyeva OA, Böhme W. Variation in body size and sexual size dimorphism in the most widely ranging lizard: testing the effects of reproductive mode and climate. Ecol Evol 2020; 10:4531-4561. [PMID: 32551042 PMCID: PMC7297768 DOI: 10.1002/ece3.6077] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 01/07/2020] [Accepted: 01/13/2020] [Indexed: 11/23/2022] Open
Abstract
Reproductive mode, ancestry, and climate are hypothesized to determine body size variation in reptiles but their effects have rarely been estimated simultaneously, especially at the intraspecific level. The common lizard (Zootoca vivipara) occupies almost the entire Northern Eurasia and includes viviparous and oviparous lineages, thus representing an excellent model for such studies. Using body length data for >10,000 individuals from 72 geographically distinct populations over the species' range, we analyzed how sex-specific adult body size and sexual size dimorphism (SSD) is associated with reproductive mode, lineage identity, and several climatic variables. Variation in male size was low and poorly explained by our predictors. In contrast, female size and SSD varied considerably, demonstrating significant effects of reproductive mode and particularly seasonality. Populations of the western oviparous lineage (northern Spain, south-western France) exhibited a smaller female size and less female-biased SSD than those of the western viviparous (France to Eastern Europe) and the eastern viviparous (Eastern Europe to Far East) lineages; this pattern persisted even after controlling for climatic effects. The phenotypic response to seasonality was complex: across the lineages, as well as within the eastern viviparous lineage, female size and SSD increase with increasing seasonality, whereas the western viviparous lineage followed the opposing trends. Altogether, viviparous populations seem to follow a saw-tooth geographic cline, which might reflect the nonmonotonic relationship of body size at maturity in females with the length of activity season. This relationship is predicted to arise in perennial ectotherms as a response to environmental constraints caused by seasonality of growth and reproduction. The SSD allometry followed the converse of Rensch's rule, a rare pattern for amniotes. Our results provide the first evidence of opposing body size-climate relationships in intraspecific units.
Collapse
Affiliation(s)
| | - Valentina F. Orlova
- Zoological Research MuseumMoscow M.V. Lomonosov State UniversityMoscowRussia
| | - Nina A. Bulakhova
- Institute of Biological Problems of the NorthMagadanRussia
- Research Institute of Biology and BiophysicsTomsk State UniversityTomskRussia
| | | | | | | | | | | | | | | | | | - Sylvia Hofmann
- Helmholtz‐Centre for Environmental Research – UfZLeipzigGermany
| | - Olga A. Leontyeva
- Department of BiogeographyMoscow M. V. Lomonosov State UniversityMoscowRussia
| | | |
Collapse
|
5
|
Bestion E, Soriano-Redondo A, Cucherousset J, Jacob S, White J, Zinger L, Fourtune L, Di Gesu L, Teyssier A, Cote J. Altered trophic interactions in warming climates: consequences for predator diet breadth and fitness. Proc Biol Sci 2019; 286:20192227. [PMID: 31662087 DOI: 10.1098/rspb.2019.2227] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Species interactions are central in predicting the impairment of biodiversity with climate change. Trophic interactions may be altered through climate-dependent changes in either predator food preferences or prey communities. Yet, climate change impacts on predator diet remain surprisingly poorly understood. We experimentally studied the consequences of 2°C warmer climatic conditions on the trophic niche of a generalist lizard predator. We used a system of semi-natural mesocosms housing a variety of invertebrate species and in which climatic conditions were manipulated. Lizards in warmer climatic conditions ate at a greater predatory to phytophagous invertebrate ratio and had smaller individual dietary breadths. These shifts mainly arose from direct impacts of climate on lizard diets rather than from changes in prey communities. Dietary changes were associated with negative changes in fitness-related traits (body condition, gut microbiota) and survival. We demonstrate that climate change alters trophic interactions through top-predator dietary shifts, which might disrupt eco-evolutionary dynamics.
Collapse
Affiliation(s)
- Elvire Bestion
- CNRS, Université Toulouse III Paul Sabatier, UMR 5321, Station d'Ecologie Théorique et Expérimentale, 09200 Moulis, France.,Environmental and Sustainability Institute, College of Life and Environmental Sciences, University of Exeter, Penryn, Cornwall TR10 9FE, UK
| | - Andrea Soriano-Redondo
- Centre for Ecology and Conservation, College of Life and Environmental Sciences, University of Exeter, Cornwall Campus, Penryn, Cornwall TR10 9EZ, UK
| | - Julien Cucherousset
- CNRS, Université Toulouse III Paul Sabatier, ENSFEA, IRD; UMR5174, Laboratoire Évolution & Diversité Biologique, 118 route de Narbonne, 31062 Toulouse, France
| | - Staffan Jacob
- CNRS, Université Toulouse III Paul Sabatier, UMR 5321, Station d'Ecologie Théorique et Expérimentale, 09200 Moulis, France
| | - Joël White
- CNRS, Université Toulouse III Paul Sabatier, ENSFEA, IRD; UMR5174, Laboratoire Évolution & Diversité Biologique, 118 route de Narbonne, 31062 Toulouse, France
| | - Lucie Zinger
- Institut de Biologie de l'École Normale Supérieure, École Normale Superieure, Paris Sciences et Lettres Research University, CNRS UMR 8197, INSERM U1024, 75005 Paris, France
| | - Lisa Fourtune
- CNRS, Université Toulouse III Paul Sabatier, UMR 5321, Station d'Ecologie Théorique et Expérimentale, 09200 Moulis, France
| | - Lucie Di Gesu
- CNRS, Université Toulouse III Paul Sabatier, ENSFEA, IRD; UMR5174, Laboratoire Évolution & Diversité Biologique, 118 route de Narbonne, 31062 Toulouse, France
| | - Aimeric Teyssier
- CNRS, Université Toulouse III Paul Sabatier, ENSFEA, IRD; UMR5174, Laboratoire Évolution & Diversité Biologique, 118 route de Narbonne, 31062 Toulouse, France.,Terrestrial Ecology Unit, Department of Biology, Ghent University, K. L. Ledeganckstraat 35, 9000, Ghent, Belgium
| | - Julien Cote
- CNRS, Université Toulouse III Paul Sabatier, ENSFEA, IRD; UMR5174, Laboratoire Évolution & Diversité Biologique, 118 route de Narbonne, 31062 Toulouse, France
| |
Collapse
|
6
|
Petraccioli A, Guarino FM, Kupriyanova L, Mezzasalma M, Odierna G, Picariello O, Capriglione T. Isolation and Characterization of Interspersed Repeated Sequences in the Common Lizard, Zootoca vivipara, and Their Conservation in Squamata. Cytogenet Genome Res 2019; 157:65-76. [PMID: 30836364 DOI: 10.1159/000497304] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
The common lizard (Zootoca vivipara) displays characteristic cytogenetic, reproductive, molecular, and biogeographic variability. This species comprises oviparous and viviparous populations with disjunct distribution and sex chromosome polymorphisms, from simple ZZ/ZW to complex Z1Z1Z2Z2/Z1Z2W systems with different morphologies of the W chromosome. In this study, we used the primers SINE A and SINE B and a newly designed primer pair to (1) obtain information on the presence and distribution of transposable elements (TEs) in 8 squamate families and (2) assess the chromosomal location of SINE Squam elements in Z. vivipara. PCR amplification with SINE A and SINE B produced single or multiple products in different Z. vivipara populations, subsequently used to design the SINE-Zv primers. Using the newly designed SINE-Zv primers, we identified 2 sequences of about 700 and 300 bp (SINE-Zv 700 and SINE-Zv 300) in all the investigated populations of Z. vivipara. Fluorescence in situ hybridizations showed a preferential localization of SINE-Zv sequences in the peritelomeric regions of almost all chromosomes, with the exception of the W. Both sequences contained a distinct segment of SINE Squam2. SINE-Zv 700 appeared to be restricted to Z. vivipara, while SINE-Zv 300 contained a partial Gypsy sequence that is highly conserved among Squamata and showed high identity values (72-93%) with several transcripts from different species. Using the same primers, we also highlighted the presence of another highly conserved Gypsy-like fragment in snakes which displayed significant similarity with the stomatin-like protein 2 of colubrids. Our results suggest that SINEs and the Gypsy-like elements are widely distributed among squamates and may have played an active role in their genomic evolution and differentiation.
Collapse
|
7
|
Horreo JL, Peláez ML, Suárez T, Fitze PS. Development and characterization of 79 nuclear markers amplifying in viviparous and oviparous clades of the European common lizard. Genetica 2017; 146:115-121. [PMID: 29143284 DOI: 10.1007/s10709-017-0002-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2017] [Accepted: 11/13/2017] [Indexed: 10/18/2022]
Abstract
The European common lizard (Zootoca vivipara) is a widely distributed species across Europe and Asia exhibiting two reproductive modes (oviparity/viviparity), six major lineages and several sublineages. It has been used to tackle a large variety of research questions, nevertheless, few nuclear DNA sequence markers have been developed for this species. Here we developed 79 new nuclear DNA sequence markers using a clonation protocol. These markers were amplified in several oviparous and viviparous specimens including samples of all extant clades, to test the amplification success and their diversity. 49.4% of the markers were polymorphic and of those, 51.3% amplified in all and 94.9% amplified in 5-7 of the extant Z. vivipara clades. These new markers will be very useful for the study of the population structure, population dynamics, and micro/macro evolution of Z. vivipara. Cross-species amplification in four lizard species (Psammodromus edwardsianus, Podarcis muralis, Lacerta bilineata, and Takydromus sexlineatus) was positive in several of the markers, and six makers amplified in all five species. The large genetic distance between P. edwardsianus and Z. vivipara further suggests that these markers may as well be employed in many other species.
Collapse
Affiliation(s)
- J L Horreo
- Department of Ecology and Evolution (DEE), University of Lausanne, 1015, Lausanne, Switzerland. .,Department of Biodiversity and Ecologic Restoration, Instituto Pirenaico de Ecología (IPE-CSIC), Avda. Nuestra Señora de la Victoria 16, 22700, Jaca, Spain. .,Department of Biodiversity and Evolutionary Biology, Museo Nacional de Ciencias Naturales (MNCN-CSIC), José Gutiérrez Abascal 2, 28006, Madrid, Spain.
| | - M L Peláez
- Department of Biodiversity and Evolutionary Biology, Museo Nacional de Ciencias Naturales (MNCN-CSIC), José Gutiérrez Abascal 2, 28006, Madrid, Spain.,Department of Cellular and Molecular Physiopathology, Centro de Investigaciones Biologicas (CIB-CSIC), Calle Ramiro de Maetzu 9, 28040, Madrid, Spain
| | - T Suárez
- Department of Cellular and Molecular Physiopathology, Centro de Investigaciones Biologicas (CIB-CSIC), Calle Ramiro de Maetzu 9, 28040, Madrid, Spain
| | - P S Fitze
- Department of Ecology and Evolution (DEE), University of Lausanne, 1015, Lausanne, Switzerland.,Department of Biodiversity and Ecologic Restoration, Instituto Pirenaico de Ecología (IPE-CSIC), Avda. Nuestra Señora de la Victoria 16, 22700, Jaca, Spain.,Department of Biodiversity and Evolutionary Biology, Museo Nacional de Ciencias Naturales (MNCN-CSIC), José Gutiérrez Abascal 2, 28006, Madrid, Spain.,Fundación Araid, Edificio CEEI Aragón, María de Luna 11, 50018, Zaragoza, Spain
| |
Collapse
|
8
|
Peñalver‐Alcázar M, Aragón P, Breedveld MC, Fitze PS. Microhabitat selection in the common lizard: implications of biotic interactions, age, sex, local processes, and model transferability among populations. Ecol Evol 2016; 6:3594-3607. [PMID: 27148443 PMCID: PMC4848056 DOI: 10.1002/ece3.2138] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2015] [Revised: 03/11/2016] [Accepted: 03/20/2016] [Indexed: 11/06/2022] Open
Abstract
Modeling species' habitat requirements are crucial to assess impacts of global change, for conservation efforts and to test mechanisms driving species presence. While the influence of abiotic factors has been widely examined, the importance of biotic factors and biotic interactions, and the potential implications of local processes are not well understood. Testing their importance requires additional knowledge and analyses at local habitat scale. Here, we recorded the locations of species presence at the microhabitat scale and measured abiotic and biotic parameters in three different common lizard (Zootoca vivipara) populations using a standardized sampling protocol. Thereafter, space use models and cross-evaluations among populations were run to infer local processes and estimate the importance of biotic parameters, biotic interactions, sex, and age. Biotic parameters explained more variation than abiotic parameters, and intraspecific interactions significantly predicted the spatial distribution. Significant differences among populations in the relationship between abiotic parameters and lizard distribution, and the greater model transferability within populations than between populations are in line with effects predicted by local adaptation and/or phenotypic plasticity. These results underline the importance of including biotic parameters and biotic interactions in space use models at the population level. There were significant differences in space use between sexes, and between adults and yearlings, the latter showing no association with the measured parameters. Consequently, predictive habitat models at the population level taking into account different sexes and age classes are required to understand a specie's ecological requirements and to allow for precise conservation strategies. Our study therefore stresses that future predictive habitat models at the population level and their transferability should take these parameters into account.
Collapse
Affiliation(s)
- Miguel Peñalver‐Alcázar
- Departamento de Biodiversidad y Biología EvolutivaMuseo Nacional de Ciencias Naturales (MNCN, CSIC)José Gutiérrez Abascal 228006MadridSpain
- Instituto Pirenaico de Ecología (IPE, CSIC)Avda. Ntra. Señora de la Victoria, s/n22700JacaSpain
- Departamento de Biogeografía y Cambio GlobalMuseo Nacional de Ciencias Naturales (MNCN‐CSIC)José Gutiérrez Abascal 228006MadridSpain
| | - Pedro Aragón
- Departamento de Biogeografía y Cambio GlobalMuseo Nacional de Ciencias Naturales (MNCN‐CSIC)José Gutiérrez Abascal 228006MadridSpain
| | - Merel C. Breedveld
- Departamento de Biodiversidad y Biología EvolutivaMuseo Nacional de Ciencias Naturales (MNCN, CSIC)José Gutiérrez Abascal 228006MadridSpain
- Instituto Pirenaico de Ecología (IPE, CSIC)Avda. Ntra. Señora de la Victoria, s/n22700JacaSpain
| | - Patrick S. Fitze
- Departamento de Biodiversidad y Biología EvolutivaMuseo Nacional de Ciencias Naturales (MNCN, CSIC)José Gutiérrez Abascal 228006MadridSpain
- Instituto Pirenaico de Ecología (IPE, CSIC)Avda. Ntra. Señora de la Victoria, s/n22700JacaSpain
- Department of Ecology and EvolutionUniversity of LausanneLe Biophore1015LausanneSwitzerland
- Fundación Araid, Edificio CEEI AragónMaría de Luna 1150018ZaragozaSpain
| |
Collapse
|
9
|
Martin M, Le Galliard JF, Meylan S, Loew ER. The importance of ultraviolet and near-infrared sensitivity for visual discrimination in two species of lacertid lizards. ACTA ACUST UNITED AC 2014; 218:458-65. [PMID: 25524990 DOI: 10.1242/jeb.115923] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Male and female Lacertid lizards often display conspicuous coloration that is involved in intraspecific communication. However, visual systems of Lacertidae have rarely been studied and the spectral sensitivity of their retinal photoreceptors remains unknown. Here, we characterise the spectral sensitivity of two Lacertid species from contrasting habitats: the wall lizard Podarcis muralis and the common lizard Zootoca vivipara. Both species possess a pure-cone retina with one spectral class of double cones and four spectral classes of single cones. The two species differ in the spectral sensitivity of the LWS cones, the relative abundance of UVS single cones (potentially more abundant in Z. vivipara) and the coloration of oil droplets. Wall lizards have pure vitamin A1-based photopigments, whereas common lizards possess mixed vitamin A1 and A2 photopigments, extending spectral sensitivity into the near infrared, which is a rare feature in terrestrial vertebrates. We found that spectral sensitivity in the UV and near infrared improves discrimination of small variations in throat coloration among Z. vivipara. Thus, retinal specialisations optimise chromatic resolution in common lizards, indicating that the visual system and visual signals might co-evolve.
Collapse
Affiliation(s)
- Mélissa Martin
- CNRS UMR 7618, iEES Paris, Université Pierre et Marie Curie, 75005 Paris, France CNRS UMR 7179, Département d'Ecologie et de Gestion de la Biodiversité, Muséum National d'Histoire Naturelle, 91800 Brunoy, France
| | - Jean-François Le Galliard
- CNRS UMR 7618, iEES Paris, Université Pierre et Marie Curie, 75005 Paris, France CNRS UMS 3194, CEREEP - Ecotron IleDeFrance, École Normale Supérieure, 77140 St-Pierre-lès-Nemours, France
| | - Sandrine Meylan
- CNRS UMR 7618, iEES Paris, Université Pierre et Marie Curie, 75005 Paris, France ESPE de Paris-Université Sorbonne Paris IV, 75016 Paris, France
| | - Ellis R Loew
- Department of Biomedical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853, USA
| |
Collapse
|