Integrative Organismal Biology最新文献_第3页

Sharks Violate Rensch's Rule for Sexual Size Dimorphism. 鲨鱼违反了伦施的性别大小二形性规则。

IF 2.2 4区生物学

Integrative Organismal Biology Pub Date : 2024-07-04 eCollection Date: 2024-01-01 DOI: 10.1093/iob/obae025

J H Gayford, P C Sternes

{"title":"Sharks Violate Rensch's Rule for Sexual Size Dimorphism.","authors":"J H Gayford, P C Sternes","doi":"10.1093/iob/obae025","DOIUrl":"10.1093/iob/obae025","url":null,"abstract":"Systematic trends in body size variation exist in a multitude of vertebrate radiations, however their underlying ecological and evolutionary causes remain poorly understood. Rensch's rule describes one such trend-in which the scaling of sexual size dimorphism (SSD) depends on which sex is larger. Where SSD is male-biased, SSD should scale hyperallometrically, as opposed to hypoallometrically where SSD is female-biased. The evidence for Rensch's rule is mixed, and comes from a small subset of total vertebrate diversity. We conducted the first empirical test of Rensch's rule in sharks, seeking to confirm or refute a long-hypothesied trend. We find that sharks violate Rensch's rule, as the magnitude of SSD increases with body size despite sharks predominantly exhibiting female-biased SSD. This adds to a growing literature of vertebrate clades that appear not to follow Rensch's rule, suggesting the absence of a single, conserved scaling trend for SSD amongst vertebrates. It is likely that selection associated with fecundity results in the \"inverse Rensch's rule\" observed in sharks, although additional studies will be required to fully reveal the factors underlying SSD variation in this clade.","PeriodicalId":13666,"journal":{"name":"Integrative Organismal Biology","volume":"6 1","pages":"obae025"},"PeriodicalIF":2.2,"publicationDate":"2024-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11247179/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141619819","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Morphology and Mechanics of the Fin Whale Esophagus: The Key to Fast Processing of Large Food Volumes by Rorquals. 长须鲸食道的形态和力学：长须鲸食道的形态和力学：长须鲸快速处理大量食物的关键。

IF 2.2 4区生物学

Integrative Organismal Biology Pub Date : 2024-07-01 eCollection Date: 2024-01-01 DOI: 10.1093/iob/obae020

K N Gil, A W Vogl, R E Shadwick

{"title":"Morphology and Mechanics of the Fin Whale Esophagus: The Key to Fast Processing of Large Food Volumes by Rorquals.","authors":"K N Gil, A W Vogl, R E Shadwick","doi":"10.1093/iob/obae020","DOIUrl":"10.1093/iob/obae020","url":null,"abstract":"Lunge feeding rorqual whales feed by engulfing a volume of prey laden water that can be as large as their own body. Multiple feeding lunges occur during a single foraging dive and the time between each lunge can be as short as 30 s (Goldbogen et al. 2013). During this short inter-lunge time, water is filtered out through baleen to concentrate prey in the oral cavity, and then the prey is swallowed prior to initiating the next lunge. Prey density in the ocean varies greatly, and despite the potential of swallowing a massive volume of concentrated prey as a slurry, the esophagus of rorqual whales has been anecdotally described as unexpectedly narrow with a limited capacity to expand. How rorquals swallow large quantities of food down a narrow esophagus during a limited inter-lunge time remains unknown. Here, we show that the small diameter muscular esophagus in the fin whale is optimized to transport a slurry of food to the stomach. A thick wall of striated muscle occurs at the pharyngeal end of the esophagus which, together with the muscular wall of the pharynx, may generate a pressure head for transporting the food down the esophagus to the stomach as a continuous stream rather than separating the food into individual boluses swallowed separately. This simple model is consistent with estimates of prey density and stomach capacity. Rorquals may be the only animals that capture a volume of food too large to swallow as a single intact bolus without oral processing, so the adaptations of the esophagus are imperative for transporting these large volumes of concentrated food to the stomach during a time-limited dive involving multiple lunges.","PeriodicalId":13666,"journal":{"name":"Integrative Organismal Biology","volume":"6 1","pages":"obae020"},"PeriodicalIF":2.2,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11221840/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141497949","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Amphibian Segmentation Clock Models Suggest How Large Genome and Cell Sizes Slow Developmental Rate. 两栖动物分段时钟模型揭示大基因组和大细胞如何减缓发育速度

IF 2.2 4区生物学

Integrative Organismal Biology Pub Date : 2024-06-19 eCollection Date: 2024-01-01 DOI: 10.1093/iob/obae021

A Taylor, A Prasad, R Lockridge Mueller

{"title":"Amphibian Segmentation Clock Models Suggest How Large Genome and Cell Sizes Slow Developmental Rate.","authors":"A Taylor, A Prasad, R Lockridge Mueller","doi":"10.1093/iob/obae021","DOIUrl":"10.1093/iob/obae021","url":null,"abstract":"Evolutionary increases in genome size, cell volume, and nuclear volume have been observed across the tree of life, with positive correlations documented between all three traits. Developmental tempo slows as genomes, nuclei, and cells increase in size, yet the driving mechanisms are poorly understood. To bridge this gap, we use a mathematical model of the somitogenesis clock to link slowed developmental tempo with changes in intra-cellular gene expression kinetics induced by increasing genome size and nuclear volume. We adapt a well-known somitogenesis clock model to two model amphibian species that vary 10-fold in genome size: Xenopus laevis (3.1 Gb) and Ambystoma mexicanum (32 Gb). Based on simulations and backed by analytical derivations, we identify parameter changes originating from increased genome and nuclear size that slow gene expression kinetics. We simulate biological scenarios for which these parameter changes mathematically recapitulate slowed gene expression in A. mexicanum relative to X. laevis, and we consider scenarios for which additional alterations in gene product stability and chromatin packing are necessary. Results suggest that slowed degradation rates as well as changes induced by increasing nuclear volume and intron length, which remain relatively unexplored, are significant drivers of slowed developmental tempo.","PeriodicalId":13666,"journal":{"name":"Integrative Organismal Biology","volume":"6 1","pages":"obae021"},"PeriodicalIF":2.2,"publicationDate":"2024-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11245677/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141616317","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Buffered Lugol's Iodine Preserves DNA Fragment Lengths. 缓冲鲁戈尔碘保留 DNA 片段长度

IF 1.5 4区生物学

Integrative Organismal Biology Pub Date : 2024-06-14 eCollection Date: 2024-01-01 DOI: 10.1093/iob/obae017

P M Gignac, D Valdez, A C Morhardt, L M Lynch

{"title":"Buffered Lugol's Iodine Preserves DNA Fragment Lengths.","authors":"P M Gignac, D Valdez, A C Morhardt, L M Lynch","doi":"10.1093/iob/obae017","DOIUrl":"10.1093/iob/obae017","url":null,"abstract":"Museum collections play a pivotal role in the advancement of biological science by preserving phenotypic and genotypic history and variation. Recently, contrast-enhanced X-ray computed tomography (CT) has aided these advances by allowing improved visualization of internal soft tissues. However, vouchered specimens could be at risk if staining techniques are destructive. For instance, the pH of unbuffered Lugol's iodine (I2KI) may be low enough to damage deoxyribonucleic acid (DNA). The extent of this risk is unknown due to a lack of rigorous evaluation of DNA quality between control and experimental samples. Here, we used formalin-fixed mice to document DNA concentrations and fragment lengths in nonstained, ethanol-preserved controls and 3 iodine-based staining preparations: (1) 1.25% weight-by-volume (wt/vol.) alcoholic iodine (I2E); (2) 3.75% wt/vol. I2KI; and (3) 3.75% wt/vol. buffered I2KI. We tested a null hypothesis of no significant difference in DNA concentrations and fragment lengths between control and treatment samples. We found that DNA concentration decreases because of staining-potentially an effect of measuring intact double-stranded DNA only. Fragment lengths, however, were significantly higher for buffered I2KI and control samples, which were not, themselves, significantly different. Our results implicate buffered I2KI as the appropriate choice for contrast-enhanced CT imaging of museum wet collections to safely maximize their potential for understanding genetic and phenotypic diversity.","PeriodicalId":13666,"journal":{"name":"Integrative Organismal Biology","volume":"6 1","pages":"obae017"},"PeriodicalIF":1.5,"publicationDate":"2024-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11182668/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141418837","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Surfperches versus Damselfishes: Trophic Evolution in Closely Related Pharyngognath Fishes with Highly Divergent Reproductive Strategies. 冲浪鱼与豆娘鱼：生殖策略高度不同的近缘副颌鱼类的营养进化》（Trophic Evolution in Closely Related Pharyngognath Fishes with Highly Divergent Reproductive Strategies）。

IF 2.2 4区生物学

Integrative Organismal Biology Pub Date : 2024-05-27 eCollection Date: 2024-01-01 DOI: 10.1093/iob/obae018

W J Cooper, M R Conith, A J Conith

{"title":"Surfperches versus Damselfishes: Trophic Evolution in Closely Related Pharyngognath Fishes with Highly Divergent Reproductive Strategies.","authors":"W J Cooper, M R Conith, A J Conith","doi":"10.1093/iob/obae018","DOIUrl":"https://doi.org/10.1093/iob/obae018","url":null,"abstract":"Surfperches and damselfishes are very closely related ovalentarians with large reproductive differences. Damselfishes are typical of most Ovalentaria in that they lay demersal eggs that hatch into small, free-feeding larvae. Surfperches are unusual among ovalentarians and most acanthomorphs in having prolonged internal development. They are born at an advanced stage, some as adults, and bypass the need to actively feed throughout an extended period of ontogeny. Damselfishes and surfperches possess the same modifications of the fifth branchial arch that allow them to perform advanced food processing within the pharynx. This condition (pharyngognathy) has large effects on the evolution of feeding mechanics and trophic ecology. Although the evolution of pharyngognaths has received considerable attention, the effects of different reproductive strategies on their diversification have not been examined. We compared head shape evolution in surfperches and damselfishes using geometric morphometrics, principal component analyses, and multiple phylogenetic-comparative techniques. We found that they have similar mean head shapes, that their primary axes of shape variation are comparable and distinguish benthic-feeding and pelagic-feeding forms in each case, and that, despite large differences in crown divergence times, their head shape disparities are not significantly different. Several lines of evidence suggest that evolution has been more constrained in damselfishes: Head shape is evolving faster in surfperches, more anatomical traits have undergone correlated evolution in damselfishes, there is significant phylogenetic signal in damselfish evolution (but not surfperches), and damselfishes exhibit significant allometry in head shape that is not present in surfperches.","PeriodicalId":13666,"journal":{"name":"Integrative Organismal Biology","volume":"6 1","pages":"obae018"},"PeriodicalIF":2.2,"publicationDate":"2024-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11210498/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141467790","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Meioflume: A New System for Observing the Interstitial Behavior of Meiofauna. 水流：观察小型底栖生物间隙行为的新系统

IF 1.5 4区生物学

Integrative Organismal Biology Pub Date : 2024-05-25 eCollection Date: 2024-01-01 DOI: 10.1093/iob/obae016

W M Ballentine, K M Dorgan

{"title":"The Meioflume: A New System for Observing the Interstitial Behavior of Meiofauna.","authors":"W M Ballentine, K M Dorgan","doi":"10.1093/iob/obae016","DOIUrl":"10.1093/iob/obae016","url":null,"abstract":"Meiofauna (benthic invertebrates < 1 mm in size) facilitate sediment biogeochemical cycling, alter sediment microbial community structure, and serve as an important trophic link between benthic micro- and macrofauna, yet the behaviors that mechanistically link individuals to their ecological effects are largely unknown. Meiofauna are small and sediments are opaque, making observing the in situ activities of these animals challenging. We developed the Meioflume, a small, acrylic flow tunnel filled with grains of cryolite, a transparent sand analog, to simulate the in situ conditions experienced by meiofauna in an observable lab environment. The Meioflume has a working area (28.57 mm × 10.16 mm × 1 mm) that is small enough to quickly locate fauna and clearly observe behavior but large enough that animals are not tightly confined. When connected to a syringe press, the Meioflume can produce low velocity flows consistently and evenly across the width of its working area while retaining the contents. To demonstrate its functionality in observing the behavior of meiofauna, we placed individual meiofaunal animals (a protodrilid annelid, a harpacticoid copepod, and a platyhelminth flatworm) in Meioflumes and filmed their behavioral response to a sudden initiation of porewater flow. All animals were clearly visible within the flume and could be observed responding to the onset of flow. The design and construction of the Meioflume make it an accessible, affordable tool for researchers. This experimental system could be modified to address many questions in meiofaunal ecology, such as studying behavior in response to chemical cues, allowing us to observe meiofaunal behaviors to better understand their ecological effects.","PeriodicalId":13666,"journal":{"name":"Integrative Organismal Biology","volume":"6 1","pages":"obae016"},"PeriodicalIF":1.5,"publicationDate":"2024-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11177882/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141330852","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ground Reaction Forces and Energy Exchange During Underwater Walking. 水下行走时的地面反作用力和能量交换。

IF 2.2 4区生物学

Integrative Organismal Biology Pub Date : 2024-05-02 eCollection Date: 2024-01-01 DOI: 10.1093/iob/obae013

K M Gamel, S Pinti, H C Astley

{"title":"Ground Reaction Forces and Energy Exchange During Underwater Walking.","authors":"K M Gamel, S Pinti, H C Astley","doi":"10.1093/iob/obae013","DOIUrl":"10.1093/iob/obae013","url":null,"abstract":"Underwater walking was a crucial step in the evolutionary transition from water to land. Underwater walkers use fins and/or limbs to interact with the benthic substrate and produce propulsive forces. The dynamics of underwater walking remain poorly understood due to the lack of a sufficiently sensitive and waterproof system to measure substrate reaction forces (SRFs). Using an underwater force plate (described in our companion paper), we quantify SRFs during underwater walking in axolotls (Ambystoma mexicanum) and Spot prawn (Pandalus platyceros), synchronized with videography. The horizontal propulsive forces were greater than the braking forces in both species to overcome hydrodynamic drag. In axolotls, potential energy (PE) fluctuations were far smaller than kinetic energy (KE) fluctuations due to high buoyant support (97%), whereas the magnitudes were similar in the prawn due to lower buoyant support (93%). However, both species show minimal evidence of exchange between KE and PE, which, along with the effects of hydrodynamic drag, is incompatible with inverted pendulum dynamics. Our results show that, despite their evolutionary links, underwater walking has fundamentally different dynamics compared with terrestrial walking and emphasize the substantial consequences of differences in body plan in underwater walking.","PeriodicalId":13666,"journal":{"name":"Integrative Organismal Biology","volume":"6 1","pages":"obae013"},"PeriodicalIF":2.2,"publicationDate":"2024-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11191838/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141442551","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Morphological Diversity of Turtle Hyoid Apparatus is Linked to Feeding Behavior. 乌龟舌骨装置的形态多样性与摄食行为有关

IF 1.5 4区生物学

Integrative Organismal Biology Pub Date : 2024-05-02 eCollection Date: 2024-01-01 DOI: 10.1093/iob/obae014

G Jorgewich-Cohen, I Werneburg, M Jobbins, G S Ferreira, M D Taylor, D Bastiaans, M R Sánchez-Villagra

{"title":"Morphological Diversity of Turtle Hyoid Apparatus is Linked to Feeding Behavior.","authors":"G Jorgewich-Cohen, I Werneburg, M Jobbins, G S Ferreira, M D Taylor, D Bastiaans, M R Sánchez-Villagra","doi":"10.1093/iob/obae014","DOIUrl":"10.1093/iob/obae014","url":null,"abstract":"The hyoid apparatus of tetrapods is highly diverse in its morphology. It plays an important role in feeding, breathing, sound production, and various other behaviors. Among turtles, the diversity of the hyoid apparatus has been recurrently linked to their habitat. The ossification of the hyoid corpus is often the main trait used in correlations with \"niche\" occupancy, an ossified corpus being associated with aquatic environments and a cartilaginous corpus with terrestrial life. Most studies conducted so far have focused on species belonging to Testudinoidea, the clade that occupies the biggest diversity of habitats (i.e., terrestrial, semi-terrestrial, and aquatic animals), while other turtle lineages have been largely understudied. We assessed the adult anatomy of the hyoid apparatus of 92 turtle species from all \"families\", together with ossification sequences from embryological series of 11 species, some described for the first time here. Using nearly 40 different discrete anatomical characters, we discuss the evolutionary patterns and the biological significance of morphological transformations in the turtle hyoid elements. Morphological changes are strongly associated to feeding modes, with several instances of convergent evolution within and outside the Testudines clade, and are not as strongly connected to habitat as previously thought. Some of the hyoid character states we describe are diagnostic of specific turtle clades, thus providing phylogenetically relevant information.","PeriodicalId":13666,"journal":{"name":"Integrative Organismal Biology","volume":"6 1","pages":"obae014"},"PeriodicalIF":1.5,"publicationDate":"2024-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11090499/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140916431","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Morphological Diversity and Evolution of Jaw Morphologies in Zeiform Fishes (Teleostei, Paracanthopterygii). 泽形目鱼类（远洋鱼类，副栉目）下颌形态的多样性和进化。

IF 1.5 4区生物学

Integrative Organismal Biology Pub Date : 2024-04-15 eCollection Date: 2024-01-01 DOI: 10.1093/iob/obae011

J W Peters, K K Duclos, M V H Wilson, T C Grande

{"title":"Morphological Diversity and Evolution of Jaw Morphologies in Zeiform Fishes (Teleostei, Paracanthopterygii).","authors":"J W Peters, K K Duclos, M V H Wilson, T C Grande","doi":"10.1093/iob/obae011","DOIUrl":"10.1093/iob/obae011","url":null,"abstract":"Zeiformes (dories, tinselfishes, and oreos) are primarily benthopelagic acanthomorph fishes, distributed between 50 and 1000 m depth on continental slopes and on flanks of oceanic islands and seamounts. Among the interesting morphological adaptations of zeiform fishes are their unique and highly protrusible jaws involving premaxillae with long ascending processes and a four-bar linkage, including mobile palatines that pivot on their posterior articulation. This adaptation for increased jaw protrusion has enabled zeiform fishes to capture elusive prey more efficiently and is arguably a major factor in their morphological diversity and evolutionary success. This study examines the evolution of zeiform jaw morphologies using 3D landmark-based multivariate morphometrics as well as phylomorphospace analysis. Results show that the descendants of the zeiform ancestor branched rapidly early in their history, retaining conservative jaw morphologies during this early branching, but subsequently strongly diverged in many of the resulting lineages. Results from this study are compared with earlier research based on overall body form, demonstrating that morphological variation within Zeiformes arose along at least two distinct trajectories: body form and jaw morphology. Variation among genera in body form is not associated with variation among the same genera in jaw morphology, and vice versa. Hypotheses to explain the apparent decoupling of body shape and jaw morphology are addressed along with avenues for further study to better understand the morphological evolution of these iconic fishes.","PeriodicalId":13666,"journal":{"name":"Integrative Organismal Biology","volume":"6 1","pages":"obae011"},"PeriodicalIF":1.5,"publicationDate":"2024-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11090498/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140916427","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Intraspecific Variation in the Placement of Campaniform Sensilla on the Wings of the Hawkmoth Manduca Sexta. 鹰蛾曼杜卡-塞克斯塔（Manduca Sexta）翅膀上钟状感觉器位置的种内差异。

IF 1.5 4区生物学

Integrative Organismal Biology Pub Date : 2024-03-13 eCollection Date: 2024-01-01 DOI: 10.1093/iob/obae007

K E Stanchak, T Deora, A I Weber, M K Hickner, A Moalin, L Abdalla, T L Daniel, B W Brunton

{"title":"Intraspecific Variation in the Placement of Campaniform Sensilla on the Wings of the Hawkmoth Manduca Sexta.","authors":"K E Stanchak, T Deora, A I Weber, M K Hickner, A Moalin, L Abdalla, T L Daniel, B W Brunton","doi":"10.1093/iob/obae007","DOIUrl":"10.1093/iob/obae007","url":null,"abstract":"Flight control requires active sensory feedback, and insects have many sensors that help them estimate their current locomotor state, including campaniform sensilla (CS), which are mechanoreceptors that sense strain resulting from deformation of the cuticle. CS on the wing detect bending and torsional forces encountered during flight, providing input to the flight feedback control system. During flight, wings experience complex spatio-temporal strain patterns. Because CS detect only local strain, their placement on the wing is presumably critical for determining the overall representation of wing deformation; however, how these sensilla are distributed across wings is largely unknown. Here, we test the hypothesis that CS are found in stereotyped locations across individuals of Manduca sexta, a hawkmoth. We found that although CS are consistently found on the same veins or in the same regions of the wings, their total number and distribution can vary extensively. This suggests that there is some robustness to variation in sensory feedback in the insect flight control system. The regions where CS are consistently found provide clues to their functional roles, although some patterns might be reflective of developmental processes. Collectively, our results on intraspecific variation in CS placement on insect wings will help reshape our thinking on the utility of mechanosensory feedback for insect flight control and guide further experimental and comparative studies.","PeriodicalId":13666,"journal":{"name":"Integrative Organismal Biology","volume":"6 1","pages":"obae007"},"PeriodicalIF":1.5,"publicationDate":"2024-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11074993/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140876336","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0