Biogeography and diversification of Brassicales: A 103 million year tale

Cardinal‐McTeague, Warren M.; Sytsma, Kenneth J.; Hall, Jocelyn C.

doi:10.1016/j.ympev.2016.02.021

Cited by 98 publications

(69 citation statements)

References 146 publications

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“…Most recent models suggest that Patagonia and the Antarctic Peninsula were connected until c. 57 Ma (Reguero et al, 2014) and that Australia and Eastern Antarctica separated only c. 45 Ma (White et al, 2013). We propose that the Indian subcontinent, which commenced its rapid journey from the southern Indian Ocean in the Palaeocene and began to collide with Asia by the middle Eocene (DeCelles et al, 2014), may have facilitated these early dispersals between Australia and Africa at the exclusion of Asia (Conti et al, 2002;Cardinal-McTeague et al, 2016). While we lack the fossil evidence to confirm that Antarctica facilitated the Southern Hemispheric patterns observed during the Cretaceous, our model serves as one more example of a vicariant pattern between South America and Australia following the breakup of Gondwana (e.g.…”

Section: Ancestral Area Estimations Suggest a Tropical Museum But Mulmentioning

confidence: 79%

“…Interestingly, our model indicates that all direct dispersal events between Australia and Africa occurred prior to the end of the Eocene (c. 34 Ma). We propose that the Indian subcontinent, which commenced its rapid journey from the southern Indian Ocean in the Palaeocene and began to collide with Asia by the middle Eocene (DeCelles et al, 2014), may have facilitated these early dispersals between Australia and Africa at the exclusion of Asia (Conti et al, 2002;Cardinal-McTeague et al, 2016). This was a unique moment in history, where the Indian Ocean contained a large landmass that could have served as an intermediary dispersal point.…”

Section: Ancestral Area Estimations Suggest a Tropical Museum But Mulmentioning

confidence: 92%

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Biogeography of the cosmopolitan sedges (Cyperaceae) and the area‐richness correlation in plants

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Drew²,

Pace

et al. 2016

Journal of Biogeography

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106

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Aim Across angiosperm families, the area occupied by a family is strongly correlated with its richness. We explore the causes of this area‐richness correlation using the cosmopolitan family, Cyperaceae Juss., as a model. We test the hypothesis that, despite a proposed tropical origin, temperate lineages in the family diversified at elevated rates. We test the hypothesis that the area‐richness correlation is maintained within intrafamilial clades, and that this relationship could be described as a function of niche space. We also test the hypothesis that the partitioning of geographical and ecological space, not the extent of this space, is the factor most closely associated with clade richness. Location Cosmopolitan. Methods We use molecular data from four genes sequenced in 384 taxa to develop a chronogram of Cyperaceae. We then develop a model of ancestral ranges and measure rates of diversification throughout the history of the family. Integrating data from over 4,800,000 digitized herbarium records, we characterize the range and niche of more than 4500 species and test for correlations of the species richness maintained within clades with range size, range partitioning, range overlap, niche, clade age and rate of diversification. Results Cyperaceae originated in South America in the late Cretaceous and subsequently dispersed throughout the globe. Of three increases in diversification rate, two occurred in the temperate Northern Hemisphere. The variable most closely associated with clade richness is the partitioning of geographical space by species within each clade. Main conclusions We show that species‐rich clades in Cyperaceae are not only more widespread, occupy more niche space, and diversify more quickly, but also exhibit patterns that are consistent with the partitioning of geographical and ecological space as a major correlate to diversification.

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Section: Ancestral Area Estimations Suggest a Tropical Museum But Mulmentioning

confidence: 79%

Section: Ancestral Area Estimations Suggest a Tropical Museum But Mulmentioning

confidence: 92%

Biogeography of the cosmopolitan sedges (Cyperaceae) and the area‐richness correlation in plants

Spalink

Drew²,

Pace

et al. 2016

Journal of Biogeography

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106

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“…This plant group may have specific genetic preconditions for entering microbial symbioses (Werner et al ., ). Late Cretaceous angiosperm radiation has been linked to lower atmospheric CO 2 , increasing aridity and fires, as well as plant colonization of aquatic, cold or disturbed habitats (Wing & Boucher, ; Gomez et al ., ; Cardinal‐McTeague et al ., ; Carpenter et al ., ).…”

Section: Mycorrhizal Evolution In Plants: a Brief Updatementioning

confidence: 99%

Evolutionary history of mycorrhizal symbioses and global host plant diversity

2018

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Contents Summary1108I.Introduction1108II.Mycorrhizal plant diversity at global and local scales1108III.Mycorrhizal evolution in plants: a brief update1111IV.Conclusions and perspectives1114References1114 Summary The majority of vascular plants are mycorrhizal: 72% are arbuscular mycorrhizal (AM), 2.0% are ectomycorrhizal (EcM), 1.5% are ericoid mycorrhizal and 10% are orchid mycorrhizal. Just 8% are completely nonmycorrhizal (NM), whereas 7% have inconsistent NM–AM associations. Most NM and NM–AM plants are nutritional specialists (e.g. carnivores and parasites) or habitat specialists (e.g. hydrophytes and epiphytes). Mycorrhizal associations are consistent in most families, but there are exceptions with complex roots (e.g. both EcM and AM). We recognize three waves of mycorrhizal evolution, starting with AM in early land plants, continuing in the Cretaceous with multiple new NM or EcM linages, ericoid and orchid mycorrhizas. The third wave, which is recent and ongoing, has resulted in root complexity linked to rapid plant diversification in biodiversity hotspots.

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“…The Brassicaceae Arabidopsis is a member of the order Brassicales, which is known for the production of mustard oil (glucosinate) compounds (Cardinal-McTeague et al, 2016). This order contains, in addition to several model plants, many species that are of economical relevance, such as mustard (Brassica juncea), broccoli (Brassica oleracea var.…”

Section: Pp7l Contributes To the Tolerance To Abiotic Stressesmentioning

confidence: 99%

Extrachloroplastic PP7L Functions in Chloroplast Development and Abiotic Stress Tolerance

Marino

Klingl

et al. 2019

Plant Physiol.

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Chloroplast biogenesis is indispensable for proper plant development and environmental acclimation. In a screen for mutants affected in photosynthesis, we identified the protein phosphatase7-like (pp7l) mutant, which displayed delayed chloroplast development in cotyledons and young leaves. PP7L, PP7, and PP7-long constitute a subfamily of phosphoprotein phosphatases. PP7 is thought to transduce a blue-light signal perceived by crys and phy a that induces expression of SIGMA FACTOR5 (SIG5). We observed that, like PP7, PP7L was predominantly localized to the nucleus in Arabidopsis (Arabidopsis thaliana), and the pp7l phenotype was similar to that of the sig6 mutant. However, SIG6 expression was unaltered in pp7l mutants. Instead, loss of PP7L compromised translation and ribosomal RNA (rRNA) maturation in chloroplasts, pointing to a distinct mechanism influencing chloroplast development. Promoters of genes deregulated in pp7l-1 were enriched in PHYTOCHROME-INTERACTING FACTOR (PIF)-binding motifs and the transcriptome of pp7l-1 resembled those of pif and CONSTITUTIVE PHOTOMORPHOGENESIS1 (COP1) signalosome complex (csn) mutants. However, pif and csn mutants, as well as cop1, cryptochromes (cry)1 cry2, and phytochromes (phy)A phyB mutants, do not share the pp7l photosynthesis phenotype. PhyB protein levels were elevated in pp7l mutants, but phyB overexpression plants did not resemble pp7l. These results indicate that PP7L operates through a different pathway and that the control of greening and photosystem biogenesis can be separated. The lack of PP7L increased susceptibility to salt and high-light stress, whereas PP7L overexpression conferred resistance to highlight stress. Strikingly, PP7L was specifically recruited to Brassicales for the regulation of chloroplast development. This study adds another player involved in chloroplast biogenesis.

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Biogeography and diversification of Brassicales: A 103 million year tale

Cited by 98 publications

References 146 publications

Biogeography of the cosmopolitan sedges (Cyperaceae) and the area‐richness correlation in plants

Biogeography of the cosmopolitan sedges (Cyperaceae) and the area‐richness correlation in plants

Evolutionary history of mycorrhizal symbioses and global host plant diversity

Extrachloroplastic PP7L Functions in Chloroplast Development and Abiotic Stress Tolerance

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