干旱区生态环境知识资源中心(Arid): Phylogeny and historical biogeography of Lithospermeae (Boraginaceae): Disentangling the possible causes of Miocene diversifications

Arid

DOI	10.1016/j.ympev.2019.106626
	Phylogeny and historical biogeography of Lithospermeae (Boraginaceae): Disentangling the possible causes of Miocene diversifications
	Chacon, Juliana 1,2; Luebert, Federico 1,3; Selvi, Federico 4; Cecchi, Lorenzo 5; Weigend, Maximilian 1
通讯作者	Chacon, Juliana
来源期刊	MOLECULAR PHYLOGENETICS AND EVOLUTION
ISSN	1055-7903
EISSN	1095-9513
出版年	2019
卷号	141
英文摘要	Studies about the drivers of angiosperm Glade diversifications have revealed how the environment continuously alters the species chances to adapt or to go extinct. This process depends on complex interactions between abiotic and biotic factors, conditioned to the geological and tectonic settings, the genetic variability of species and the rate at which speciation occurs. In this study, we aim to elucidate the timing of diversification of the Lithospermeae, the second largest tribe within Boraginaceae, and to identify the possible morphological and ecological characters associated with shifts in diversification rates of the most species-rich clades. Lithospermeae includes ca. 470 species and 26 genera, among which are some of the largest genera of the family such as Onosma (150 spp.), Echium (60 spp.), and Lithospermum (80 spp.). An exhaustive study of the whole Glade is not available to date and its evolutionary history and diversification rates are incompletely known. In the present study, we provide the most comprehensive phylogeny of the group so far, sampling 242 species and all 26 genera. We found that crown-groups and diversification rates of Lithospermeae largely date back to the Mid-Miocene, with high diversification rates in the largest genera, though only significantly high in Onosma. Our analysis fails to associate any of the functional or morphological traits considered with significant shifts in diversification rates. The timing of the diversification of the species-rich clades corresponds with Miocene tectonic events and global climate changes increasing aridity across Eurasia and western North America. These results suggest a causal link between known ecological features of Lithospermeae (i.e., pre-adaptation to arid, open habitats, and mineral soils) and their diversification. Future studies should expand the sampling of individual subclades and detailed functional analyses to identify the contribution of adaptations to arid conditions and pollinator shifts.
英文关键词	Diversification rates Herkogamy Irano-Turanian region Mediterranean Serpentine soils
类型	Article
语种	英语
国家	Germany ; Chile ; Italy
收录类别	SCI-E
WOS记录号	WOS:000492748200014
WOS关键词	MESSINIAN SALINITY CRISIS ; ONOSMA BORAGINACEAE ; EVOLUTION ; SERPENTINE ; CLIMATE ; SYSTEMATICS ; LOBOSTEMON ; EXPANSION ; ORIGINS ; ECHIUM
WOS类目	Biochemistry & Molecular Biology ; Evolutionary Biology ; Genetics & Heredity
WOS研究方向	Biochemistry & Molecular Biology ; Evolutionary Biology ; Genetics & Heredity
EI主题词	2019-12-01
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/311332
作者单位	1.Nees Inst Biodiversitat Pflanzen, Meckenheimer Allee 170, D-53115 Bonn, Germany; 2.Univ Munich LMU, Dept Biol, Systemat Bot & Mycol, D-80638 Munich, Germany; 3.Univ Chile, Dept Silvicultura & Conservac Nat, Ave Santa Rosa 11315, Santiago, Chile; 4.Univ Florence, Labs Bot, Dept Agr Food Environm & Forestry, Ple Cascine 28, I-50144 Florence, Italy; 5.Univ Florence, Nat Hist Museum, Sect Bot Filippo Parlatore, Via G La Pira 4, I-50121 Florence, Italy
推荐引用方式 GB/T 7714	Chacon, Juliana,Luebert, Federico,Selvi, Federico,et al. Phylogeny and historical biogeography of Lithospermeae (Boraginaceae): Disentangling the possible causes of Miocene diversifications[J],2019,141.
APA	Chacon, Juliana,Luebert, Federico,Selvi, Federico,Cecchi, Lorenzo,&Weigend, Maximilian.(2019).Phylogeny and historical biogeography of Lithospermeae (Boraginaceae): Disentangling the possible causes of Miocene diversifications.MOLECULAR PHYLOGENETICS AND EVOLUTION,141.
MLA	Chacon, Juliana,et al."Phylogeny and historical biogeography of Lithospermeae (Boraginaceae): Disentangling the possible causes of Miocene diversifications".MOLECULAR PHYLOGENETICS AND EVOLUTION 141(2019).