{"title":"Ultrasonic Differentiation Between Two Species of Chinese Pygmy Dormice (Genus Typhlomys) With Support for the Size-Signal Allometry Hypothesis.","authors":"Qian Qian, Juncheng Li, Mengqing Fu, Mingjiang Zou, Tian Tian, Yimei Yan, Chris Newman, Dahu Zou, Youbing Zhou","doi":"10.1111/1749-4877.12937","DOIUrl":"https://doi.org/10.1111/1749-4877.12937","url":null,"abstract":"<p><p>The genus Typhlomys comprises six species that all exhibit exceptional climbing agility in arboreal habitats, of which five have been established to use ultrasonic echolocation in the 80-120-kHz frequency range to navigate among tree branches. Here, we investigated the ultrasonic vocalizations of the remaining and recently recognized species, T. fengjiensis, and compared its ultrasonic and morphological traits with its sibling species T. daloushanensis. Both species produced frequency-modulated (FM) ultrasonic calls that lacked harmonic structure, consistent with echolocating calls established for other members of this genus Typhlomys. This FM echolocation call structure is well-adapted to navigating along branches in dense foliage conditions in the forest understory. Importantly, however, the specific call structures of T. fengjiensis and T. daloushanensis exhibited significantly different ultrasonic characteristics, with different numbers of pulse groups, in support of phonic speciation. T. fengjiensis was on average larger than T. daloushanensis and vocalized at a lower frequency and for a longer duration, in support of the signal-size allometry hypothesis. Furthermore, T. fengjiensis has the lowest ultrasonic call frequency among Typhlomys spp., corresponding with it being the largest member of this genus. Bergmann's law does not provide a compelling explanation of the body mass differences between T. fengjiensis and T. daloushanensis, due to the likely overlap in their elevational distribution. Further research is needed to establish if differences in habitat selection and diet, or differences in social and reproductive behavior, might best explain this local species divergence based on phonic traits.</p>","PeriodicalId":13654,"journal":{"name":"Integrative zoology","volume":" ","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142864319","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Xuanyi Yang, Xiaochen Wang, Mingyi Zhang, Ying Shen, Yang Teng, Ming Li, Huijuan Pan
{"title":"Gut Mycobiota of Three Rhinopithecus Species Provide New Insights Into the Association Between Diet and Environment.","authors":"Xuanyi Yang, Xiaochen Wang, Mingyi Zhang, Ying Shen, Yang Teng, Ming Li, Huijuan Pan","doi":"10.1111/1749-4877.12932","DOIUrl":"https://doi.org/10.1111/1749-4877.12932","url":null,"abstract":"<p><p>Gut mycobiota are part of the gut microbiome, typically derived from the host diet and living environment. In this study, we examined the gut mycobiota of three snub-nosed monkeys: Rhinopithecus roxellana, R. bieti, and R. strykeri using next-generation amplicon sequencing targeting the fungal internal transcribed spacer. The alpha diversity indexes of gut mycobiota in R. bieti were significantly higher than R. roxellana and R. strykeri, the beta diversity indicated that R. roxellana and R. bieti had more similar feeding habits. Core mycobiota demonstrated commonalities among the three species and potentially associated with feeding habits. Mycobiota displaying significant differences exhibited the respective characteristics of the host, likely associated with the hosts' living environment. Among them, animal and plant pathogenic fungi and lichen parasites are potential threats to the survival of snub-nosed monkeys for their pathogenicity to both monkeys and their food plants. Functionally, fungal trophic modes and functional guilds revealed a strong association between gut mycobiota and host diet. We found a higher abundance and more significant correlations with lichen parasitic fungi in R. strykeri than the other two species, indicating potential threats to their foods. Accordingly, this study revealed the basic structures of gut mycobiota of three wild Rhinopithecus species and highlighted the associations between gut mycobiota and their feeding habits and living environments. Furthermore, due to the close connection between fungi and the environment, animals could ingest fungi from their diet; thus, we speculate that gut mycobiota may serve a role in environmental monitoring for wildlife.</p>","PeriodicalId":13654,"journal":{"name":"Integrative zoology","volume":" ","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142846298","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Kai Xu, Wenhong Xiao, Dazhi Hu, Marcel Holyoak, Chengpeng Ji, Juntao Zhang, Duifang Ma, Zhishu Xiao
{"title":"Effects of Livestock Grazing on Spatiotemporal Interactions Between Snow Leopards and Ungulate Prey.","authors":"Kai Xu, Wenhong Xiao, Dazhi Hu, Marcel Holyoak, Chengpeng Ji, Juntao Zhang, Duifang Ma, Zhishu Xiao","doi":"10.1111/1749-4877.12935","DOIUrl":"https://doi.org/10.1111/1749-4877.12935","url":null,"abstract":"<p><p>Spatiotemporal interactions between predators and prey are central to maintaining sustainable functioning ecosystems and community stability. For wild ungulates and their predators, livestock grazing is an important anthropogenic disturbance causing population declines and modifying their interactions over time and space. However, it is poorly understood how fine-scale grazing affects the spatiotemporal responses of predators, prey, and their interactions. Two opposing hypotheses describe a dichotomy of possible effects. The human shield hypothesis states that people can protect prey because predators avoid areas with high human-induced mortality risk, whereas in the human competitor hypothesis, humans compete for prey and negatively impact predators through reduced prey availability. We used camera-trapping data from the Gansu Qilianshan National Nature Reserve in Northwest China to measure occupancy, daily activity patterns, and spatiotemporal interactions between snow leopards (Panthera uncia), the dominant predator, and their ungulate prey in areas with contrasting grazing intensities. The results of grazing were consistent with both the human-shield and human-competitor hypotheses, affecting spatiotemporal patterns and interactions of predators and prey. For the primary prey species, blue sheep (Pseudois nayaur), their spatial and temporal patterns were affected by grazing, which led to a reduction in interaction frequencies with snow leopards. For secondary prey, grazing led to reduced interaction frequencies with snow leopards for white-lipped deer (Przewalskium albirostris) and red deer (Cervus yarkandensis), but increased frequencies for alpine musk deer (Moschus chrysogaster). Our results indicate how both competition among livestock and prey and predator or prey avoidance of grazed areas can impact populations and predator-prey interactions. Our findings are relevant to grazing management and snow leopard conservation.</p>","PeriodicalId":13654,"journal":{"name":"Integrative zoology","volume":" ","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142835621","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Chuang Zhou, Zhongyi Wang, Xiaodong Wang, Huantao Qu, Zhaobin Song
{"title":"Chromosome-Level Genome Assembly and Genetic Maker System of the Endangered Largemouth Bronze Gudgeon (Coreius guichenoti) with Focus on Conservation Applications.","authors":"Chuang Zhou, Zhongyi Wang, Xiaodong Wang, Huantao Qu, Zhaobin Song","doi":"10.1111/1749-4877.12926","DOIUrl":"https://doi.org/10.1111/1749-4877.12926","url":null,"abstract":"<p><p>The largemouth bronze gudgeon (Coreius guichenoti), an endemic fish species, is distributed in the upper Yangtze River drainage. Due to anthropogenetic factors such as water pollution, overfishing, and dam construction, the wild populations of C. guichenoti have dramatically declined in recent decades. In this study, we generated a reference chromosomal-level genome assembly of C. guichenoti on the basis of PacBio HiFi sequencing and Hi-C scaffolding technologies. The final genome assembly was 1.10 Gb in length (contig N50: 28.64 Mb; scaffold N50: 42.39 Mb) with 25 chromosomes. The completeness score of the C. guichenoti genome was 96.4%, and high synteny was detected compared with Danio rerio and Ictalurus punctatus genomes. A total of 24 325 PCGs were annotated for the C. guichenoti genome. Comparative genomics analysis identified 986 expanded gene families in C. guichenoti, which were significantly enriched in GO items associated with the development and interaction of sperm and egg as well as immunity. Furthermore, positively selected genes (PSGs) detected in C. guichenoti were mainly associated with DNA repair, ATP binding, mitochondrion, and lipid homeostasis. Based on the reference genome and resequencing data, the polymorphic microsatellite (SSR) loci were comprehensively analyzed for C. guichenoti, and the top 15 tetra-nucleotide SSR loci were selected for the construction of the genetic maker system after validation through PCR and genotyping. All of these 15 tetra-nucleotide SSR loci without Hardy-Weinberg equilibrium (HWE) deviation showed high polymorphism, good amplification stability, and selective neutrality. The PID (sibs) curves revealed that the subset of four tetra-nucleotide SSR loci (cgui1, cgui5, cgui3, cgui13) was sufficient for accurate identification of C. guichenoti individuals (PIDsib < 0.01). These 15 tetra-nucleotide SSR loci could also serve as genetic markers in subsequent parentage identification and genetic diversity analysis. The chromosome-level genome assembly and findings laid solid foundations for molecular breeding, genomic research, and biological conservation of C. guichenoti.</p>","PeriodicalId":13654,"journal":{"name":"Integrative zoology","volume":" ","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142846296","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"\"Handle With Care\": Consequences of Different Removal Pressures on Population Growth of the Invasive Beaver in Tierra del Fuego, Argentina.","authors":"Alvaro González-Calderón, Regino Cavia, Adrián Schiavini","doi":"10.1111/1749-4877.12925","DOIUrl":"https://doi.org/10.1111/1749-4877.12925","url":null,"abstract":"<p><p>The population regulation of animals depends on fertility and survivorship. Hunting can affect population growth through changes in reproduction and survivorship. Understanding these changes in vital rates is crucial for the control of invasive mammals. With the objective to assess the influence of different population removal pressures on the finite population growth rate (𝝀) of an invasive mammal, this research used demographic data estimated from 922 invasive beavers (Castor canadensis) eradicated from seven areas from Isla Grande de Tierra del Fuego, Argentina. Areas were classified into four removal pressures: higher, high-intermediate, low-intermediate, and lower removal pressure. The hypothesis states that the higher removal pressure produces higher population growth and resilience. Leslie matrix models were used to estimate 𝝀, generation time, damping ratio, stable age distribution, reproductive value, and the sensitivity-elasticity of survivorship and fertility of the females for each removal pressure. The 𝝀 and damping ratio increased with the removal pressure, as expected; the inverse occurred with the generation time. The survivorship of the younger age classes was the most sensitive and elastic vital rate regardless of removal pressure, followed by the breeding onset. The fertility was less relevant on 𝝀. The beaver population would depend more on the survival of kits, 1-year-olds, and subadults, than the number of offspring produced. A management strategy is proposed focusing on affecting the survivorship of younger age classes, eliminating first the adult animals and then the younger beavers.</p>","PeriodicalId":13654,"journal":{"name":"Integrative zoology","volume":" ","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142828458","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The Acoustic Ecology of Coastal Dolphins by Assessing the Structural Variability of Sounds and the Influence of Contextual Factors.","authors":"Daniela Silvia Pace, Giulia Pedrazzi, Irene D'amario, Aurora Troccoli, Giancarlo Giacomini, Maria Silvia Labriola, Gianni Pavan, Daniele Ventura, Edoardo Casoli, Giandomenico Ardizzone, Elena Papale","doi":"10.1111/1749-4877.12934","DOIUrl":"https://doi.org/10.1111/1749-4877.12934","url":null,"abstract":"<p><p>The acoustic ecology of a previously unexamined dolphin population in the Mediterranean was assessed by investigating how sound emissions and acoustic features are influenced by concurrent conditions. Whistles and click-trains emission rates were compared among different environmental, social and behavioural conditions. Structural variability of 3928 good/high-quality vocalizations was analysed in relation to contexts through a two-stage approach. First, two multivariate MANOVA-models were fitted considering the entire set of acoustic parameters extracted from whistles and click trains, to investigate the effect of concomitant factors on the overall acoustic structure of each vocalization. Subsequently, GLMM models were applied to each acoustic feature individually to explore its response to different contextual factors. Emission rates increased significantly with calves and in larger groups, with also a positive effect of socialization on whistles and of muddy/sandy seabed and depth on impulsive sounds. The multivariate approach showed that all contextual factors influenced sounds' structure, with whistles being strongly affected by behaviour and calves' presence. The GLMM models highlighted that each acoustic parameter varied differently in response to specific factors, with (1) increasing trends in whistles' duration and inflection points during interaction with fishery and decreasing ones during socializing, and (2) decreasing inter-click-intervals and increasing click-repetition-rates in larger groups and during interactions with fishery. These results provide new findings on the acoustic plasticity of bottlenose dolphins and a more comprehensive view of the magnitude of the social, environmental and behavioural influence, highlighting how the complexity of the species' acoustic repertoire has yet to be unravelled at the local level.</p>","PeriodicalId":13654,"journal":{"name":"Integrative zoology","volume":" ","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142822057","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Is the Decreasing Availability of Agricultural Land Forcing the Barbary Partridge to Nest Close to Human Infrastructure?","authors":"Laila Sabrate, Saâd Hanane, Mohamed Bouaamama, Abdellah Ichen","doi":"10.1111/1749-4877.12928","DOIUrl":"https://doi.org/10.1111/1749-4877.12928","url":null,"abstract":"<p><p>It is commonly admitted that the continuous development of human infrastructure (HI), resulting in natural habitat fragmentation, affects farmland birds by misleading their strategies of nest site selection. Here, we examined how HI in agricultural landscape (AL) could be affecting nest habitat selection of Barbary partridge (BP; Alectoris barbara). A total of 160 BP nests were monitored during 4 years (2017, 2018, 2021, and 2022) in eight Moroccan agricultural zones. We used the generalized linear mixed models and variation partitioning methods to quantify the effects of AL and HI on BP nest occurrence. This occurrence increased with track density (within 300 m of sampled nests) and decreased with built-up area cover (50 m). Nest occurrence was also associated with the cover of agricultural areas (300 m), distances to the nearest agricultural area, the nearest human settlement, and the nearest track. However, the effect of these covariates depended on distance to the nearest paved road, being close to roads located far away from agricultural areas and tracks and near human settlements and tracks. Overall, our results highlighted a trend to nest close to HI when agricultural areas were relatively remote or less represented. For the effective conservation and management of the Moroccan BP populations, it is critical to keep human infrastructures at a level that allows for maintaining the relative dominance of the agricultural landscape. Further fragmentation of this landscape will impact the ability of this farmland species to select its nesting sites flexibly.</p>","PeriodicalId":13654,"journal":{"name":"Integrative zoology","volume":" ","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142822055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Qiongyu Zhang, Na Li, Xue Tang, Hanru Chen, Meiling Hong, Li Ding
{"title":"Effect of Salinity Stress on Gut-Brain-Gonad Axis in the Red-Eared Slider (Trachemys scripta elegans).","authors":"Qiongyu Zhang, Na Li, Xue Tang, Hanru Chen, Meiling Hong, Li Ding","doi":"10.1111/1749-4877.12930","DOIUrl":"https://doi.org/10.1111/1749-4877.12930","url":null,"abstract":"<p><p>The red-eared slider (Trachemys scripta elegans) can adapt to brackish water, which can endanger its biodiversity. Spermatogonial stem cells (SSCs) are essential for establishing and maintaining spermatogenesis and are regulated by the gut-brain-gonad axis. However, the effect of salinity on SSCs is unclear. We investigated the influence of salinity stress on the composition of the gut microbiota in T. s. elegans to determine whether it regulates SSC self-renewal and differentiation via the gut-brain-gonad axis. Three salinity groups (0‰, 5‰, and 10‰) were used in this study, and samples were obtained after 6 months of feeding. The mRNA expression of self-renewing genes (GFRα-1, RAS, and ERK) and meiotic initiation genes (RARα, NRG3, and ERBB4) in SSCs decreased with increasing salinity, indicating that salinity affects renewal and differentiation. In addition, harmful bacteria such as Enterococcus and Clostridium were increased in the S10 group, and lower levels of g_norank_f_Eubacteriaceae were negatively associated with γ-aminobutyric acid (GABA), whereas higher Turicibacter levels were positively associated with GABA levels, resulting in increased GABA content in the S5 group. The results show that salinity affects the secretion of neurotransmitters in the brain and negatively regulates the synthesis of reproductive hormones by changing the composition of intestinal microorganisms and metabolites, which affect SSC function. In conclusion, salinity influences the reproductive ability of T. s. elegans through the gut-brain-gonad axis. This study provides a new perspective for understanding the adaptation of T. s. elegans to brackish water.</p>","PeriodicalId":13654,"journal":{"name":"Integrative zoology","volume":" ","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142817934","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Chaoyang Luo, Xionghui Xu, Chengfa Zhao, Qiuping Wang, Rongxing Wang, Datian Lang, Juan Zhang, Wenxian Hu, Yuan Mu
{"title":"Insight Into Body Size Evolution in Aves: Based on Some Body Size-Related Genes.","authors":"Chaoyang Luo, Xionghui Xu, Chengfa Zhao, Qiuping Wang, Rongxing Wang, Datian Lang, Juan Zhang, Wenxian Hu, Yuan Mu","doi":"10.1111/1749-4877.12927","DOIUrl":"https://doi.org/10.1111/1749-4877.12927","url":null,"abstract":"<p><p>Birds exhibit remarkable variations in body size, making them an ideal group for the study of adaptive evolution. However, the genetic mechanisms underlying body size evolution in avian species remain inadequately understood. This study investigates the evolutionary patterns of avian body size by analyzing 15 body-size-related genes, including GHSR, IGF2BP1, and IGFBP7 from the growth hormone/insulin-like growth factor axis, EIF2AK3, GALNS, NCAPG, PLOD1, and PLAG1 associated with tall stature, and ACAN, OBSL1, and GRB10 associated with short stature, four genes previously reported in avian species: ATP11A, PLXDC2, TNS3, and TUBGCP3. The results indicate significant adaptive evolution of body size-related genes across different avian lineages. Notably, in the IGF2BP1 gene, a significant positive correlation was observed between the evolutionary rate and body size, suggesting that larger bird species exhibit higher evolutionary rates of the IGF2BP1 gene. Furthermore, the IGFBP7 and PLXDC2 genes demonstrated accelerated evolution in large- and medium-sized birds, respectively, indicating distinct evolutionary patterns for these genes among birds of different sizes. The branch-site model analysis identified numerous positively selected sites, primarily concentrated near functional domains, thereby reinforcing the critical role of these genes in body size evolution. Interestingly, extensive convergent evolution was detected in lineages with larger body sizes. This study elucidates the genetic basis of avian body size evolution for the first time, identifying adaptive evolutionary patterns of body size-related genes across birds of varying sizes and documenting patterns of convergent evolution. These findings provide essential genetic data and novel insights into the adaptive evolution of body size in birds.</p>","PeriodicalId":13654,"journal":{"name":"Integrative zoology","volume":" ","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142812972","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Bin Zuo, Rongmei Chen, Xiaolong Tang, Yong Shao, Xiaolong Liu, Lotanna M Nneji, Yanbo Sun
{"title":"Genomic Insights Into Genetic Basis of Evolutionary Conservatism and Innovation in Frogs.","authors":"Bin Zuo, Rongmei Chen, Xiaolong Tang, Yong Shao, Xiaolong Liu, Lotanna M Nneji, Yanbo Sun","doi":"10.1111/1749-4877.12931","DOIUrl":"https://doi.org/10.1111/1749-4877.12931","url":null,"abstract":"<p><p>Examining closely related species evolving in similar environments offers valuable insights into the mechanisms driving phylogenetic conservatism and evolutionary lability. This can elucidate the intricate relationship between inheritance and environmental factors. Nonetheless, the precise genomic dynamics and molecular underpinnings of this process remain enigmatic. This study explores the evolutionary conservatism and adaptation exhibited by two closely related high-altitude frog species: Nanorana parkeri and N. pleskei. We assembled a high-quality genome for Tibetan N. pleskei and compared it to the genomes of N. parkeri and their lowland relatives. Our findings reveal that these two Tibetan frog species diverged approximately 16.6 million years ago, pointing to a possible ancestral colonization of high-elevation habitats. Following this colonization, significant adaptive evolution occurred in both coding and non-coding regions of the ancestral lineage. This evolution led to notable phenotypic alterations, as evidenced by the reduced body size. Also, due to purifying selection, most ancestral adaptive features persisted in descendant species, indicating a strong element of evolutionary conservatism. However, descendant species evolved novel adaptations to exacerbated environmental challenges in the Tibet Plateau, mainly related to hypoxia response. Furthermore, our analysis underscores the critical role of regulatory variations in descendant adaptive evolution. Notably, hub genes in networks, such as EGLN3, accumulated more variations in regulatory regions as they were transmitted from ancestors to descendants. In sum, our study sheds light on the profound and lasting impact of genetic heritage on species' adaptive evolution.</p>","PeriodicalId":13654,"journal":{"name":"Integrative zoology","volume":" ","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142812975","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}