Historical assembly of Zygophyllaceae in the Atacama Desert

Böhnert, Tim; Weigend, Maximilian; Merklinger, Félix F.; Quandt, Dietmar; Luebert, Federico

doi:10.21425/f5fbg45197

Cited by 12 publications

(12 citation statements)

References 47 publications

(70 reference statements)

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“…Similar timing for trans‐Andean vicariance has been proposed for the origin of Heliotropium L. sect. Cochranea (Miers) Kuntze (Luebert & Wen, 2008) and Bulnesia Gay (Zygophyllaceae; Böhnert et al ., 2020).…”

Section: Discussionmentioning

confidence: 99%

“…The Atacama flora comprises some taxa that seem to have undergone little or no in situ diversification since entering the region, such as Zygophyllaceae with five native species all having colonized the Atacama Desert separately since the early Miocene (Böhnert et al ., 2020). Other genera seem to have undergone considerable diversification in the region and can be considered as species‐rich (≥ 10 spp.…”

Section: Introductionmentioning

confidence: 99%

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Plant migration under long‐lasting hyperaridity – phylogenomics unravels recent biogeographic history in one of the oldest deserts on Earth

et al. 2022

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The post-Miocene climatic histories of arid environments have been identified as key drivers of dispersal and diversification. Here, we investigate how climatic history correlates with the historical biogeography of the Atacama Desert genus Cristaria (Malvaceae).We analyze phylogenetic relationships and historical biogeography by using nextgeneration sequencing (NGS), molecular clock dating, Dispersal Extinction Cladogenesis and Bayesian sampling approaches. We employ a novel way to identify biogeographically meaningful regions as well as a rarely utilized program permitting the use of dozens of ancestral areas.Partial incongruence between the established taxonomy and our phylogenetic data argue for a complex historical biogeography with repeated introgression and incomplete lineage sorting. Cristaria originated in the central southern part of the Atacama Desert, from there the genus colonized other areas from the late Miocene onwards. The more recently diverged lineages appear to have colonized different habitats in the Atacama Desert during pluvial phases of the Pliocene and early Pleistocene.We show that NGS combined with near-comprehensive sampling can provide an unprecedented degree of phylogenetic resolution and help to correlate the historical biogeography of plant communities with cycles of arid and pluvial phases.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Plant migration under long‐lasting hyperaridity – phylogenomics unravels recent biogeographic history in one of the oldest deserts on Earth

et al. 2022

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“…For further information regarding the primers used and PCR protocols, compare supplementary material of Böhnert & al. (2019) for trnK(matK)-psbA and rpl16 as well as Böhnert & al. (2020) for trnL-trnF.…”

Section: ■ Materials and Methodsmentioning

confidence: 54%

Phylogeny based generic reclassification of Muscari sensu lato (Asparagaceae) using plastid and genomic DNA

Böhnert

Neumann

Quandt

et al. 2023

TAXON

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The grape hyacinth (Muscari) represents an important ornamental plant group in Asparagaceae subfamily Scilloideae, comprising some 80 species distributed mainly in the Mediterranean. However, genus delimitation has repeatedly shifted over the past two centuries and a general consensus has not been reached so far. The present study investigates the phylogeny of Muscari s.l. (i.e., including the disputed segregates Pseudomuscari and Leopoldia) with a broad sampling of about half the currently recognized species using both chloroplast markers (trnK(matK)‐psbA, trnL‐trnF, rpl16) and genome‐wide single nucleotide polymorphism (SNP) data generated by double‐digest restriction site‐associated DNA sequencing (ddRAD). We perform concatenated maximum likelihood inference for both datasets as well as a coalescent‐based approach and principal component analysis (PCA) on the ddRAD data. We find that the morphological characters traditionally used to distinguish different genera are not diagnostic for the clades here retrieved. Also, the segregates Pseudomuscari and Leopoldia are deeply nested in Muscari and we therefore propose a broadly defined Muscari with five subgenera. The subgenera roughly correspond to previously recognized entities, with the exception of the newly identified clade here proposed as M. subg. Pulchella subg. nov. We provide a provisional assignment of the 80 currently accepted taxa to these subgenera.

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“…The severe climatic changes that occurred at the beginning of the Pleistocene, together with the complex topography in central Chile, might have had a strong impact on the early divergence of these taxa. For instance, the establishment of new climate regimes and/or permanent ice barriers would have played a key role in this separation [ 45 , 46 , 47 ], where Andean populations were able to remain in refugia, fostering spatial reproductive isolation. This phenomenon has been suggested in other Andean plant clades with important divergences at the beginning of the Pleistocene [ 48 , 49 , 50 ].…”

Section: Discussionmentioning

confidence: 99%

Independent Evolutionary Lineages in a Globular Cactus Species Complex Reveals Hidden Diversity in a Central Chile Biodiversity Hotspot

Villalobos-Barrantes

Meriño

Walter³

et al. 2022

Genes

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Unraveling the processes involved in the origin of a substantial fraction of biodiversity can be a particularly difficult task in groups of similar, and often convergent, morphologies. The genus Eriosyce (Cactaceae) might present a greater specific diversity since much of its species richness might be hidden in morphological species complexes. The aim of this study was to investigate species delimitation using the molecular data of the globose cacti “E. curvispina”, which harbor several populations of unclear evolutionary relationships. We ran phylogenetic inferences on 87 taxa of Eriosyce, including nine E. curvispina populations, and by analyzing three plastid noncoding introns, one plastid and one nuclear gene. Additionally, we developed 12 new pairs of nuclear microsatellites to evaluate the population-level genetic structure. We identified four groups that originated in independent cladogenetic events occurring at different temporal depths; these groups presented high genetic diversity, and their populations were genetically structured. These results suggest a complex evolutionary history in the origin of globular cacti, with independent speciation events occurring at different time spans. This cryptic richness is underestimated in the Mediterranean flora of central Chile, and thus unique evolutionary diversity could be overlooked in conservation and management actions.

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Historical assembly of Zygophyllaceae in the Atacama Desert

Cited by 12 publications

References 47 publications

Plant migration under long‐lasting hyperaridity – phylogenomics unravels recent biogeographic history in one of the oldest deserts on Earth

Plant migration under long‐lasting hyperaridity – phylogenomics unravels recent biogeographic history in one of the oldest deserts on Earth

Phylogeny based generic reclassification of Muscari sensu lato (Asparagaceae) using plastid and genomic DNA

Independent Evolutionary Lineages in a Globular Cactus Species Complex Reveals Hidden Diversity in a Central Chile Biodiversity Hotspot

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