Plastid and Seed Morphology Data Support a Revised Infrageneric Classification and an African Origin of the Pantropical Genus <i>Xylopia</i> (Annonaceae)

Stull, Gregory W.; Johnson, David M.; Murray, Nancy A.; Couvreur, Thomas L. P.; Reeger, Jenna E.; Roy, Caroline M.

doi:10.1600/036364417x695484

Cited by 19 publications

(31 citation statements)

References 49 publications

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“…Unit D was not further subdivided as phylogenetic data indicate that Indian and Australian species in several genera are likely derived from other Asian taxa (e.g. Artabotrys , Huberantha : Thomas et al., ; Meiogyne : Thomas et al., ; Pseuduvaria : Su & Saunders, ; Uvaria: Zhou, Su, Thomas, & Saunders, ; Xylopia : Stull et al., ), and previous divergence time estimates indicate that likely none of these represent Gondwanan relictual lineages which originated in situ and rafted to Asia on the Indian or Australia fragments (e.g. Couvreur et al., ; Thomas et al., ).…”

Section: Methodsmentioning

confidence: 99%

“…Extant distributions were scored for most genera, although inferred ancestral areas were coded for several genera for which previous ancestral area estimates are available, viz. Anaxagorea (Scharaschkin & Doyle, ); Guatteria (Erkens, Maas, & Couvreur, ); Isolona (Couvreur, Chatrou, Sosef, & Richardson, ); Pseuduvaria (Su & Saunders, ) and Xylopia (Stull et al., ). Phylogenies and ancestral range estimates for Annona are currently based on very preliminary data, but indicate that African taxa are nested in the phylogeny and that Africa is unlikely to have been part of the ancestral range (Chatrou et al., ; H. Rainer, Naturhistorisches Museum Wien, Austria, personal communication).…”

Section: Methodsmentioning

confidence: 99%

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Historical biogeography of Goniothalamus and Annonaceae tribe Annoneae: dispersal–vicariance patterns in tropical Asia and intercontinental tropical disjunctions revisited

Thomas

Tang

Saunders

2017

Journal of Biogeography

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Aim The historical biogeography of the species‐rich flowering plant genus Goniothalamus (c. 130 species) and the wider Annonaceae tribe Annoneae is investigated to evaluate hypotheses regarding the processes underlying tropical intercontinental disjunctions (‘long‐distance dispersal [LDD]’ versus ‘boreotropics’) and floristic exchange between biodiversity hotspots in tropical Asia. Location Tropics, tropical Asia. Methods Divergence time estimation was based on plastid DNA sequence data (c. 10 kb; 164 Annonaceae accessions, including 65 Goniothalamus species) using an uncorrelated lognormal relaxed clock model and two fossil calibrations. Likelihood ancestral range estimation was performed using dispersal‐extinction‐cladogenesis models with and without time‐stratified dispersal constraints. Results The boreotropics model incorporating high chances for intercontinental dispersal during 68–34 Ma fitted the data significantly better than LDD models enforcing low intercontinental dispersal rates. Multiple vicariance events were identified in Annoneae including at the Annoneae crown node (57–49 Ma, Africa/S+N America), and the Disepalum‐Asimina split (27–24 Ma, Asia/N America). A wide ancestral range in continental SE Asia, W and E Malesia was inferred at the Goniothalamus crown node (24–21 Ma). Several dispersal events from continental SE Asia/W Malesia were identified in the Miocene: two north‐eastwards to the Philippines, one eastwards to the Sahul Shelf and two westwards to India. Main conclusions The boreotropics hypothesis provides a well‐supported, plausible explanation for the disjunctions and dispersal–vicariance patterns in tribe Annoneae. The wide distribution inferred at the Goniothalamus crown node indicates that its ancestors already bridged the marine gap between the Sunda and Sahul Shelves by LDD or rafting on tectonic plate microfragments. Dispersal across long‐standing water bodies in Malesia occurred multiple times from the early Miocene as marine gaps decreased following tectonic plate convergence and land emergence. Substantially older crown group divergence estimates compared with previous studies indicate that hypotheses of rapid recent radiation in Goniothalamus must be rejected.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Historical biogeography of Goniothalamus and Annonaceae tribe Annoneae: dispersal–vicariance patterns in tropical Asia and intercontinental tropical disjunctions revisited

Thomas

Tang

Saunders

2017

Journal of Biogeography

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“…The common pattern of zoochorous dispersal (frugivourous birds and bats in the Pacific) and ecological dependence on forest (intolerance of open, drought-prone habitat) among members of the Annonaceae are likely to make them slow colonisers (Thomas et al 2015;Stull et al 2017). The rather 'hit-and-miss' geographical pattern exhibited by the various Annonaceae genera across the south-west Pacific seems to reflect random dispersal events as much as any adaptive colonising ability in these phylogenetic lines.…”

Section: Discussionmentioning

confidence: 99%

“…Johnson et al (2013) suggested that the Xylopia species in New Caledonia may include pre-Oligocene relict taxa. However, in general, Xylopia shows the typical pattern of west to east migration probably involving long-distance dispersal (Stull et al 2017).…”

Section: Introductionmentioning

confidence: 99%

Annonaceae in the Western Pacific: geographic patterns and four new species

Turner

Utteridge

2017

EJT

775

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“…Both moniliform and dehiscent fruits have been shown to be particularly attractive to birds (Gautier-Hion et al, 1985;Guo, Hoekstra, et al, 2017;Lomáscolo & Schaefer, 2010), although Xylopia has been observed to be fed on by both birds and primates (Johnson & Murray, 2018). These vertebrate dispersers facilitate germination in these species by removing the aril, the sarcotesta, or both (i.e., structures that inhibit germination) (Stull et al, 2017). The disjunct tropical African/Asian distributions of Dasymaschalon and Desmos suggests that dispersal may have occurred via the Afro-Asian land bridge in the Neogene (Figure 3).…”

Section: Frugivory-related Traits Influence Longdistance Dispersalmentioning

confidence: 99%

Which frugivory‐related traits facilitated historical long‐distance dispersal in the custard apple family (Annonaceae)?

Onstein

Kissling

Chatrou

et al. 2019

Journal of Biogeography

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Aim Long‐distance dispersal has contributed to the disjunct biogeographical distribution of rain forest plants—something that has fascinated biogeographers since Humboldt's time. However, the dispersal agent for these tropical plant lineages remains puzzling. Here, we investigate which frugivory‐related traits may have facilitated past intercontinental long‐distance dispersal in the custard apple family (Annonaceae), a major vertebrate‐dispersed tropical plant family. We hypothesize that long‐distance dispersal was associated with the evolution of traits related to dispersal by large‐bodied mammals (e.g., large, dull‐coloured, “megafaunal” fruits) and strong‐flying, ocean‐crossing birds and bats (e.g., dehiscent, moniliform or cauliflorous fruits). Location Global. Taxon Annonaceae. Methods We used a fossil‐calibrated phylogenetic framework to infer the biogeographic history of 234 Annonaceae species (10%, covering nearly all genera) in relation to the evolution of 15 frugivory‐related traits, using maximum likelihood and Bayesian inferences. Furthermore, we used linear and generalized linear models and phylogenetic simulations to test whether ancestral fruit traits during intercontinental dispersal were different from those of other lineages not involved in long‐distance dispersal. Results We inferred the ancestral Annonaceae fruits to be small with a single or few small seeds and a small number of fruitlets. These fruits were most probably apocarpous, indehiscent and/or moniliform (i.e., long beads of fruitlets). Furthermore, most of the long‐distance dispersal events in Annonaceae occurred via the expanded tropical forests in the Early Cenozoic (“geodispersal”), and were significantly associated with large (c. 3 cm long), dull‐coloured fruits and short stipes. Additionally, long‐distance dispersal was also facilitated by dehiscent, moniliform and non‐cauliflorous fruits. Main conclusions We suggest that the evolution of frugivory‐related traits associated with dispersal by frugivores that frequently move across large distances and/or barriers, such as large‐bodied mammals and strong‐flying birds, has contributed to the disjunct tropical biogeographical distribution of Annonaceae, and probably of tropical rain forest plants more generally.

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Plastid and Seed Morphology Data Support a Revised Infrageneric Classification and an African Origin of the Pantropical Genus Xylopia (Annonaceae)

Cited by 19 publications

References 49 publications

Historical biogeography of Goniothalamus and Annonaceae tribe Annoneae: dispersal–vicariance patterns in tropical Asia and intercontinental tropical disjunctions revisited

Historical biogeography of Goniothalamus and Annonaceae tribe Annoneae: dispersal–vicariance patterns in tropical Asia and intercontinental tropical disjunctions revisited

Annonaceae in the Western Pacific: geographic patterns and four new species

Which frugivory‐related traits facilitated historical long‐distance dispersal in the custard apple family (Annonaceae)?

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