Calyceraceae: Unexpected diversification pattern in the Southern Andes

Brignone, Nicolás Fernando; Mazet, Nathan; Pozner, Raúl; Denham, Silvia S.

doi:10.1016/j.ppees.2023.125744

Cited by 3 publications

(2 citation statements)

References 69 publications

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“…Neotropical endemic taxa either have origins in the Neotropics itself, e.g., Calyceraceae (Brignone et al., 2023), or from elsewhere, e.g., Cyclanthaceae (Leal et al., 2022) and Cannaceae (Kress & Specht, 2006). In Cyclanthaceae, a fossil of a representative ( Cyclanthus ) has been found in Europe which is outside the present‐day range of the family.…”

Section: Discussionmentioning

confidence: 99%

The Neotropical endemic liverwort subfamily Micropterygioideae had circum‐Antarctic links to the rest of the Lepidoziaceae during the early Cretaceous

Rayos,

Renner,

2024

Ecology and Evolution

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Lepidoziaceae are the third‐largest family of liverworts, with about 860 species distributed on all continents. The evolutionary history of this family has not been satisfactorily resolved, with taxa such as Micropterygioideae yet to be included in phylogenetic analyses. We inferred a dated phylogeny of Lepidoziaceae using a data set consisting of 13 genetic markers, sampled from 147 species. Based on our phylogenetic estimate, we used statistical dispersal‐vicariance analysis to reconstruct the biogeographic history of the family. We inferred a crown age of 197 Ma (95% credible interval 157–240 Ma) for the family in the Australian region, with most major lineages also originating in the same region. Micropterygioideae are placed as the sister group to Lembidioideae, with these two lineages diverging from each other about 132 Ma in the South American–Australian region. With South America and Australia being connected through Antarctica at the time, our results suggest a circum‐Antarctic link between Micropterygioideae and the rest of the family. Crown Micropterygioideae were inferred to have arisen 45 Ma in South America before the continent separated from Antarctica. Extinction from southern temperate regions might explain the present‐day restriction of Micropterygioideae to the Neotropics. Our study reveals the influence of past geological events, such as continental drift, on the evolution and distribution of a widespread and diverse family of liverworts.

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Section: Discussionmentioning

confidence: 99%

The Neotropical endemic liverwort subfamily Micropterygioideae had circum‐Antarctic links to the rest of the Lepidoziaceae during the early Cretaceous

Rayos,

Renner,

2024

Ecology and Evolution

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“…Neotropical endemic taxa either have origins in the Neotropics itself, e.g., the angiosperm family Calyceraceae (Brignone et al, 2023), or from elsewhere, e.g., the fern family Cyatheaceae (Korall and Pryer, 2014). Our study shows that Micropterygioideae are among the lineages that the Neotropical region holds in its collection of taxa with circum-Antarctic links.…”

Section: Micropterygioideae and Its Circum-antarctic Links To Lepidoz...mentioning

confidence: 67%

The Neotropical endemic liverwort subfamily Micropterygioideae had circum-Antarctic links to the rest of the Lepidoziaceae during the early Cretaceous

Rayos,

Renner,

2023

Preprint

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Lepidoziaceae are the third-largest family of liverworts, with about 860 species distributed on all continents. The evolutionary history of this family has not been satisfactorily resolved, with taxa such as Micropterygioideae yet to be included in phylogenetic analyses. We inferred a dated phylogeny of Lepidoziaceae using a data set consisting of 13 genetic markers, sampled from 147 species. Based on our phylogenetic estimate, we used statistical dispersal-vicariance analysis to reconstruct the biogeographic history of the family. We inferred a crown age of 197 Ma (95% credible interval 157–240 Ma) for the family in the Australian region, with most major lineages also originating in the same region. Micropterygioideae are placed as the sister lineage to Lembidioideae, with these two groups diverging from each other about 132 Ma in the South American–Australian region. Our results suggest a circum-Antarctic link between Micropterygioideae and the rest of the family, along with extinction of the lineage in the region. Crown Micropterygioideae were inferred to have arisen 45 million years ago in South America, before the continent separated from Antarctica. Our study reveals the influence of past geological events on the evolution and distribution of a widespread and diverse family of liverworts.

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Evolution of pollen morphology in Calyceraceae and insights into its early evolutionary differentiation

San Martin,

Johnson,

Denham

et al. 2024

Botanical Journal of the Linnean Society

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Pollen morphology has been a fundamental tool in the study of evolution and phylogeny in angiosperms. As sister to Asteraceae, Calyceraceae provides critical insights into understanding the early diversification of the sunflower family. To date, the most comprehensive palynological studies of Calyceraceae have been based on just a few species and lack a phylogenetic framework. Here we present an evolutionary study of pollen morphology in Calyceraceae based on an almost complete sampling and in light of recent phylogenetic hypotheses for this family. Twenty-seven palynological characters were established after morphological studies with scanning electron and bright field microscopy for 44 species of Calyceraceae. Character analyses included phylogenetic signal and reconstruction of ancestral states. Morphology of the mesocolpium, amb, and apertures support most genera, and provide support for the two main clades of Calyceraceae. We propose five pollen types, namely I–V. Most genera are nearly uniform in pollen morphology except for Gamocarpha, which includes four pollen types. Pollen types I and III, related to the most recent common ancestors (MRCAs) of Acicarpha and Gamocarpha respectively, possess the most apomorphic character states. Pollen types II and V, related to Calycera and Moschopsis MRCAs respectively, retain the most plesiomorphic character states. The major evolutionary changes between pollen of Calyceraceae and its sister group (whether it is Asteraceae or Barnadesioideae) involve mesoaperture development and exine structure. Our results support an independent origin of the mesocolpal concavities in Calyceraceae and its sister group (Asteraceae or Barnadesioideae), and for colpal ledges in Goodeniaceae and Calyceraceae.

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Calyceraceae: Unexpected diversification pattern in the Southern Andes

Cited by 3 publications

References 69 publications

The Neotropical endemic liverwort subfamily Micropterygioideae had circum‐Antarctic links to the rest of the Lepidoziaceae during the early Cretaceous

The Neotropical endemic liverwort subfamily Micropterygioideae had circum‐Antarctic links to the rest of the Lepidoziaceae during the early Cretaceous

The Neotropical endemic liverwort subfamily Micropterygioideae had circum-Antarctic links to the rest of the Lepidoziaceae during the early Cretaceous

Evolution of pollen morphology in Calyceraceae and insights into its early evolutionary differentiation

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