Arid
DOI10.1093/aob/mcw160
The influence of habitat on the evolution of plants: a case study across Saxifragales
Rubio de Casas, Rafael1,2,3; Mort, Mark E.4,5; Soltis, Douglas E.6,7
通讯作者Rubio de Casas, Rafael ; Soltis, Douglas E.
来源期刊ANNALS OF BOTANY
ISSN0305-7364
EISSN1095-8290
出版年2016
卷号118期号:7页码:1317-1328
英文摘要

Background and Aims Organismal evolution tends to be closely associated with ecological conditions. However, the extent to which this association constrains adaptation or diversification into new habitats remains unclear. We studied habitat evolution in the hyper-diverse angiosperm clade Saxifragales.


Methods We used species-level phylogenies for approx. 950 species to analyse the evolution of habitat shifts as well as their influence on plant diversification. We combined habitat characterization based on floristic assignments and state-of-the art phylogenetic comparative methods to estimate within-and across-habitat diversification patterns.


Key Results Our analyses showed that Saxifragales diversified into multiple habitats from a forest-inhabiting ancestor and that this diversification is governed by relatively rare habitat shifts. Lineages are likely to stay within inferred ancestral ecological conditions. Adaptation to some habitat types (e. g. aquatic, desert) may be canalizing events that lineages do not escape. Although associations between increased diversification rates and shifts in habitat preferences are occasionally observed, extreme macroevolutionary rates are closely associated with specific habitats. Lineages occurring in shrubland, and especially tundra and rock cliffs, exhibit comparatively high diversification, whereas forest, grassland, desert and aquatic habitats are associated with low diversification.


Conclusions The likelihood of occupation of new habitats appears to be asymmetric. Shifts to aquatic and desert habitats may be canalizing events. Other habitats, such as tundra, might act as evolutionary sources, while forests provide the only habitat seemingly colonized easily by lineages originating elsewhere. However, habitat shifts are very rare, and any major environmental alteration is expected to have dramatic evolutionary consequences.


英文关键词Aeonium anagenesis cladogenesis Crassulaceae climate change diversification ecotone habitat selection Macaronesia niche conservatism Saxifraga
类型Article
语种英语
国家Spain ; France ; USA
收录类别SCI-E
WOS记录号WOS:000399546800012
WOS关键词CLIMATE-CHANGE ; NICHE CONSERVATISM ; PHYLOGENETIC ANALYSES ; MOLECULAR EVOLUTION ; DIVERGENCE TIMES ; EXTINCTION RATES ; ABSOLUTE RATES ; R PACKAGE ; DIVERSIFICATION ; VEGETATION
WOS类目Plant Sciences
WOS研究方向Plant Sciences
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/191284
作者单位1.EEZA CSIC, Estn Expt Zonas Aridas, Carretera Sacramento S-N, Almeria 04120, Spain;
2.Univ Paul Valery 7 Montpellier, CEFE UMR 5175, CNRS, Univ Montpellier,EPHE, 1919 Route Mende, F-34293 Montpellier 05, France;
3.Univ Granada, Fac Ciencias, Dept Ecol, Avda Fuentenueva S-N, E-18071 Granada, Spain;
4.Univ Kansas, Dept Ecol & Evolutionary Biol, 1200 Sunnyside Ave, Lawrence, KS 66045 USA;
5.Univ Kansas, Biodivers Inst, 1200 Sunnyside Ave, Lawrence, KS 66045 USA;
6.Univ Florida, Dept Biol, Gainesville, FL 32611 USA;
7.Univ Florida, Florida Museum Nat Hist, Gainesville, FL 32611 USA
推荐引用方式
GB/T 7714
Rubio de Casas, Rafael,Mort, Mark E.,Soltis, Douglas E.. The influence of habitat on the evolution of plants: a case study across Saxifragales[J],2016,118(7):1317-1328.
APA Rubio de Casas, Rafael,Mort, Mark E.,&Soltis, Douglas E..(2016).The influence of habitat on the evolution of plants: a case study across Saxifragales.ANNALS OF BOTANY,118(7),1317-1328.
MLA Rubio de Casas, Rafael,et al."The influence of habitat on the evolution of plants: a case study across Saxifragales".ANNALS OF BOTANY 118.7(2016):1317-1328.
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