Adaptation in brain structure and respiratory and olfactory structures across environmental gradients in African and North American muroid rodents

作     者：Peter J.TAYLOR Aluwani NENGOVHELA Christiane DENYS Graham R.SCOTT Catherine M.IVY 

作者机构：Department of ZoologySchool of Natural and Mathematical SciencesUniversity of VendaThohoyandouSouth Africa Afromontane UnitDepartment of Zoology and EntomologyUniversity of the Free StatePhuthaditjhabaSouth Africa Department of MammalogyNational MuseumBloemfonteinSouth Africa Institut de SystématiqueEvolutionBiodiversité(ISYEB)Muséum National d’Histoire NaturelleCNRSSorbonne UniversitéEPHEUniversitéDes AntillesParisFrance Department of BiologyMcMaster UniversityHamiltonOntarioCanada Guglielmo and Shoemaker LabsAdvanced Facility for Avian ResearchUniversity of Western OntarioLondonOntarioCanada 

出 版 物：《Integrative Zoology》 (整合动物学（英文版）)

年 卷 期：2024年第19卷第1期

页      面：165-181页

核心收录：

学科分类：0710[理学-生物学] 07[理学] 071002[理学-动物学] 

基　　金：AESOP+ Department of Science and Innovation Ditsong Museum, Pretoria NECSA, Pelindaba, South Africa Paris Museum of Natural History South Africa National Research Foundation International Development Research Centre, IDRC University of Venda, UNIVEN Université Toulouse III - Paul Sabatier 

主　　题：3D morphometrics Africa brain size North America Rodentia sensory evolution 

摘      要：Morphometric studies of 3D micro CT-scanned images can provide insights into the evolution of the brain and sensory structures but such data are still scarce for the most diverse mammalian order of *** reviewed and new data,we tested for convergence to extreme aridity and high elevation in the sensory and brain morphology of rodents,from morphometric data from micro-CT X-ray scans of 174 crania of 16 species of three distantly re-lated African murid(soft-furred mice,Praomyini,laminate-toothed rats,Otomyini,and gerbils,Gerbillinae)clades and one North American cricetid(deer mice and white-footed mice,Peromyscus)*** studies demon-strated convergent evolution acting on the oval window area of the cochlea(enlarged in extremely arid-adapted species of Otomyini and Gerbillinae)and on endocranial volume(reduced in high elevation taxa of Otomyini and Peromyscus).However,contrary to our predictions,we did notfind evidence of convergence in brain struc-ture to aridity,or in the olfactory/respiratory system(turbinate bones)to high *** structure differed,particularly in the petrosal lobules of the cerebellum and the olfactory bulbs,between Otomyini and Gerbillinae,with extreme arid-adapted species in each clade being highly divergent(not convergent)from other species in the same *** observed greater“packingof the maxillary turbinate bones,which have important respiratory functions,in Peromyscus mice from high and low elevations compared to the high-elevation African Praomyini,but more complex patterns within Peromyscus,probably related to trade-offs in respiratory physiology and heat exchange in the nasal epithelium associated with high-elevation adaptation.