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2024
Journal article
From earthquakes to island area: multi‐scale effects upon local diversity.
Tropical forests occupy small coral atolls to the vast Amazon basin. They occur across bioregions with different geological and climatic history. Differences in area and bioregional history shape species immigration, extinction and diversification. How this effects local diversity is unclear. The Indonesian archipelago hosts thousands of tree species whose coexistence... -
2022
Journal article
Genomic insights into rapid speciation within the world’s largest tree genus Syzygium.
Species radiations, despite immense phenotypic variation, can be difficult to resolve phylogenetically when genetic change poorly matches the rapidity of diversification. Genomic potential furnished by palaeopolyploidy, and relative roles for adaptation, random drift and hybridisation in the apportionment of genetic variation, remain poorly understood factors. Here, we study these aspects...Low, Yee Wen ; Rajaraman, Sitaram ; Tomlin, Crystal M. ; Ahmad, Joffre Ali ; Ardi, Wisnu H. …
Syzygium, Evolutionary genetics, Phylogenomics, Polyploidy in plants, and Comparative genomics
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2022
Journal article
Insights into the evolution of the chloroplast genome and the phylogeny of Begonia.
Begonia (Begoniaceae) is one of the largest angiosperm genera, comprising more than 2000 species; this makes it ideal as a model to investigate the genomic basis of species radiations. Here we present the results of the first genus-wide comparative study of plastid genome structure, sequence diversity, and phylogenetics of Begoniaceae,... -
2021
Journal article
Genomic insights into rapid speciation within the world’s largest tree genus [PREPRINT].
Species radiations have long fascinated biologists, but the contribution of adaptation to observed diversity and speciation is still an open question. Here, we explore this question using the clove genus, Syzygium, the world’s largest genus of tree species comprising approximately 1200 species. We dissect Syzygium diversity through shotgun sequencing of...Low, Yee Wen ; Rajaraman, Sitaram ; Tomlin, Crystal ; Ahmad, Joffre Ali ; Ardi, Wisnu …
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2021
Journal article
Metal‐rich soils increase tropical tree stoichiometric distinctiveness
Background and aims Ultramafic soils have high metal concentrations, offering a key opportunity to understand if such metals are strong predictors of leaf stoichiometry. This is particularly relevant for tropical forests where large knowledge gaps exist. Methods On the tropical island of Sulawesi, Indonesia, we sampled forests on sand, limestone,... -
2020
Journal article
New Guinea has the world’s richest island flora
New Guinea is the world’s largest tropical island and has fascinated naturalists for centuries. Home to some of the best-preserved ecosystems on the planet3 and to intact ecological gradients—from mangroves to tropical alpine grasslands—that are unmatched in the Asia-Pacific region4,5, it is a globally recognized centre of biological and cultural... -
2020
Journal article
Floristics of forests across low nutrient soils in Sulawesi, Indonesia.
The island of Sulawesi formed from the joining of proto‐islands roughly three million years ago. Regions of zoological endemism, corresponding to the proto‐islands, have been reported. Sulawesi's tree communities, however, remain poorly documented. In better‐studied tropical regions, soil types similar to those found in Sulawesi often have distinctive tree communities....