The leafy liverwort genus Lejeunea (Porellales, Jungermanniopsida) in Miocene Dominican amber

Lee, Gaik Ee; Kolberg, Laura; Bechteler, Julia; Schäfer‐Verwimp, Alfons; Renner, Matt A. M.; Schmidt, Alexander R.; Heinrichs, Jochen

doi:10.1016/j.revpalbo.2016.11.013

Cited by 12 publications

(3 citation statements)

References 36 publications

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“…We hypothesize that the ancestral origin of Lejeunea is most likely to be in the Neotropics because (1) the highest extant species richness occurs in the Neotropics 35 , (2) the early-diverging lineages are found in the Neotropics (Fig. 2 ), and (3) all Lejeunea fossils have only been found in Miocene amber from the Dominican Republic 36 , 37 , although Paleogene ambers from Europe contain Lejeuneaceae fossils that are not attributed to Lejeunea so far 22 . The hypothesis of a Neotropical origin is also consistent with the ancestral-area estimation by Heinrichs et al .…”

Section: Discussionmentioning

confidence: 99%

An ancient tropical origin, dispersals via land bridges and Miocene diversification explain the subcosmopolitan disjunctions of the liverwort genus Lejeunea

Lee

Condamine

Bechteler

et al. 2020

Sci Rep

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Understanding the biogeographical and diversification processes explaining current diversity patterns of subcosmopolitan-distributed groups is challenging. We aimed at disentangling the historical biogeography of the subcosmopolitan liverwort genus Lejeunea with estimation of ancestral areas of origin and testing if sexual system and palaeotemperature variations can be factors of diversification. We assembled a dense taxon sampling for 120 species sampled throughout the geographical distribution of the genus. Lejeunea diverged from its sister group after the paleocene-eocene boundary (52.2 Ma, 95% credibility intervals 50.1-54.2 Ma), and the initial diversification of the crown group occurred in the early to middle Eocene (44.5 Ma, 95% credibility intervals 38.5-50.8 Ma). The DEC model indicated that (1) Lejeunea likely originated in an area composed of the Neotropics and the Nearctic, (2) dispersals through terrestrial land bridges in the late Oligocene and Miocene allowed Lejeunea to colonize the Old World, (3) the Boreotropical forest covering the northern regions until the late eocene did not facilitate Lejeunea dispersals, and (4) a single long-distance dispersal event was inferred between the Neotropics and Africa. Biogeographical and diversification analyses show the Miocene was an important period when Lejeunea diversified globally. We found slight support for higher diversification rates of species with both male and female reproductive organs on the same individual (monoicy), and a moderate positive influence of palaeotemperatures on diversification. Our study shows that an ancient origin associated with a dispersal history facilitated by terrestrial land bridges and not long-distance dispersals are likely to explain the subcosmopolitan distribution of Lejeunea. By enhancing the diversification rates, monoicy likely favoured the colonisations of new areas, especially in the Miocene that was a key epoch shaping the worldwide distribution. Intercontinental biogeographical disjunctions, in which species span several continents, have long been a main focus of evolutionary biologists and biogeographers. Since its inception, continental drift theory has provided exemplar systems in support of vicariance biogeography. However, the importance of vicariance in biogeography has been reconsidered since evidence for dispersal, and even long-distance dispersal (LDD), has accumulated

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Section: Discussionmentioning

confidence: 99%

An ancient tropical origin, dispersals via land bridges and Miocene diversification explain the subcosmopolitan disjunctions of the liverwort genus Lejeunea

Lee

Condamine

Bechteler

et al. 2020

Sci Rep

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“…Until now, the genus Lejeunea was represented by four species from Miocene Dominican amber (Lee et al, 2017) and L. abyssinicoides sp. nov. is the first fossil described from outside of the Neotropics (Table 1).…”

Section: Acceptedmentioning

confidence: 99%

Miocene Ethiopian amber: A new source of fossil cryptogams

Bouju

Feldberg

Kaasalainen

et al. 2021

J of Sytematics Evolution

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“…The Selaginella fossils from Kachin are the only lycophytes reported to date from any amber deposit worldwide. Conversely, other free-sporing plants that are similar to Selaginella in body size and fragility, such as leafy liverworts and mosses, are frequently encountered as fossils in Miocene Mexican, Dominican, Ethiopian and Zhangpu ambers, as well as in Palaeogene Baltic, Bitterfeld and Rovno ambers (Gradstein 1993;Frahm & Newton 2005;Frahm 2009;Lee & al. 2017;Bouju & al.…”

Section: Palaeoecological Implications For the Reconstruction Of The ...mentioning

confidence: 99%

Selaginella in Cretaceous amber from Myanmar

et al. 2022

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Selaginella (Selaginellales, Selaginellaceae) is the most speciose genus of lycophytes and, with approximately 750 recognized present-day species, also one of the largest genera of vascular plants. However, the evolutionary history of this species richness remains largely unresolved. Recent research suggests that Selaginella was diverse already in the mid-Cretaceous and shows that S. subg. Stachygynandrum dates back at least to the incipient Angiosperm Terrestrial Revolution some 100 million years ago. Here, we describe 20 new fossil-species of Selaginella based on fertile shoots and spores preserved in mid-Cretaceous Kachin amber from Myanmar and emend the previously described S. cretacea. Ten of the species (S.

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The leafy liverwort genus Lejeunea (Porellales, Jungermanniopsida) in Miocene Dominican amber

Cited by 12 publications

References 36 publications

An ancient tropical origin, dispersals via land bridges and Miocene diversification explain the subcosmopolitan disjunctions of the liverwort genus Lejeunea

An ancient tropical origin, dispersals via land bridges and Miocene diversification explain the subcosmopolitan disjunctions of the liverwort genus Lejeunea

Miocene Ethiopian amber: A new source of fossil cryptogams

Selaginella in Cretaceous amber from Myanmar

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