干旱区生态环境知识资源中心(Arid): Integrating genetics, physiology and morphology to study desert adaptation in a lizard species

Arid

DOI	10.1111/1365-2656.13546
	Integrating genetics, physiology and morphology to study desert adaptation in a lizard species
	Araya-Donoso, Raul; San Juan, Esteban; Tamburrino, Italo; Lamborot, Madeleine; Veloso, Claudio; Veliz, David
通讯作者	Araya-Donoso, R ; Veliz, D (corresponding author), Univ Chile, Fac Ciencias, Dept Ciencias Ecol, Santiago, Chile. ; Araya-Donoso, R ; Veliz, D (corresponding author), Univ Catolica Norte, Dept Biol Marina, Nucleo Milenio Ecol & Manejo Sustentable Islas Oc, Coquimbo, Chile. ; Araya-Donoso, R (corresponding author), Arizona State Univ, Sch Life Sci, Tempe, AZ 85281 USA.
来源期刊	JOURNAL OF ANIMAL ECOLOGY
ISSN	0021-8790
EISSN	1365-2656
出版年	2021-06
英文摘要	Integration of multiple approaches is key to understand the evolutionary processes of local adaptation and speciation. Reptiles have successfully colonized desert environments, that is, extreme and arid conditions that constitute a strong selective pressure on organisms. Here, we studied genomic, physiological and morphological variations of the lizard Liolaemus fuscus to detect adaptations to the Atacama Desert. By comparing populations of L. fuscus inhabiting the Atacama Desert with populations from the Mediterranean forests from central Chile, we aimed at characterizing features related to desert adaptation. We combined ddRAD sequencing with physiological (evaporative water loss, metabolic rate and selected temperature) and morphological (linear and geometric morphometrics) measurements. We integrated the genomic and phenotypic data using redundancy analyses. Results showed strong genetic divergence, along with a high number of fixed loci between desert and forest populations. Analyses detected 110 fixed and 30 outlier loci located within genes, from which 43 were in coding regions, and 12 presented non-synonymous mutations. The candidate genes were associated with cellular membrane and development. Desert lizards presented lower evaporative water loss than those from the forest. Morphological data showed that desert lizards had smaller body size, different allometry, larger eyeballs and more dorsoventrally compressed heads. Our results suggest incipient speciation between desert and forest populations. The adaptive signal must be cautiously interpreted since genetic drift could also contribute to the divergence pattern. Nonetheless, we propose water and resource availability, and changes in habitat structure, as the most relevant challenges for desert reptiles. This study provides insights of the mechanisms that allow speciation as well as desert adaptation in reptiles at multiple levels, and highlights the benefit of integrating independent evidence.
英文关键词	Atacama Desert ddRAD evaporative water loss geometric morphometrics Liolaemus reptile
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000662063100001
WOS关键词	LIOLAEMUS LIZARDS ; R-PACKAGE ; ADAPTIVE RADIATION ; GENUS LIOLAEMUS ; GENOME SCANS ; WEB SERVER ; BODY-SIZE ; EVOLUTION ; ENERGY ; WATER
WOS类目	Ecology ; Zoology
WOS研究方向	Environmental Sciences & Ecology ; Zoology
来源机构	Arizona State University
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/352298
作者单位	[Araya-Donoso, Raul; San Juan, Esteban; Tamburrino, Italo; Lamborot, Madeleine; Veloso, Claudio; Veliz, David] Univ Chile, Fac Ciencias, Dept Ciencias Ecol, Santiago, Chile; [Araya-Donoso, Raul; Veliz, David] Univ Catolica Norte, Dept Biol Marina, Nucleo Milenio Ecol & Manejo Sustentable Islas Oc, Coquimbo, Chile; [Araya-Donoso, Raul] Arizona State Univ, Sch Life Sci, Tempe, AZ 85281 USA
推荐引用方式 GB/T 7714	Araya-Donoso, Raul,San Juan, Esteban,Tamburrino, Italo,et al. Integrating genetics, physiology and morphology to study desert adaptation in a lizard species[J]. Arizona State University,2021.
APA	Araya-Donoso, Raul,San Juan, Esteban,Tamburrino, Italo,Lamborot, Madeleine,Veloso, Claudio,&Veliz, David.(2021).Integrating genetics, physiology and morphology to study desert adaptation in a lizard species.JOURNAL OF ANIMAL ECOLOGY.
MLA	Araya-Donoso, Raul,et al."Integrating genetics, physiology and morphology to study desert adaptation in a lizard species".JOURNAL OF ANIMAL ECOLOGY (2021).