Photosynthesis metabolism in the Compositae: Current knowledge and future directions

Siniscalchi, Carolina M.; Edwards, R. E.; Gómez, Jorge Losada; Moore-Pollard, Erika R.; Mandel, Jennifer R.

doi:10.1002/tax.12426

Cited by 4 publications

(1 citation statement)

References 91 publications

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“…Examples of plant traits amenable to extraction from herbarium specimens and biodiversity literature include basic morphological traits of vegetative and reproductive structures (e.g., counts, measurements, and descriptions of shape). Herbarium specimens have been additionally used for broad surveys of carbon and nitrogen isotopes to study photosynthetic pathways, nitrogen fixation, and other processes (Sage et al, 2007; McLauchlan et al, 2010; Silvera et al, 2010; Körner et al, 2016; Siniscalchi et al, 2021; and many others); plant chemistry (Tasca et al, 2018; see an example plot in Fig. 1E); plant genome size/ploidy (Suda and Trávnícek, 2006a,b; Viruel et al, 2019); and even in rare cases attempts at microscopical chromosome counts (Khoshoo, 1956; Laane and Höiland, 1986).…”

Section: Overcoming Shortfallsmentioning

confidence: 99%

Biodiversity at the global scale: the synthesis continues

Folk

Siniscalchi

2021

American J of Botany

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Traditionally, the generation and use of biodiversity data and their associated specimen objects have been primarily the purview of individuals and small research groups. While deposition of data and specimens in herbaria and other repositories has long been the norm, throughout most of their history, these resources have been accessible only to a small community of specialists. Through recent concerted efforts, primarily at the level of national and international governmental agencies over the last two decades, the pace of biodiversity data accumulation has accelerated, and a wider array of biodiversity scientists has gained access to this massive accumulation of resources, applying them to an ever‐widening compass of research pursuits. We review how these new resources and increasing access to them are affecting the landscape of biodiversity research in plants today, focusing on new applications across evolution, ecology, and other fields that have been enabled specifically by the availability of these data and the global scope that was previously beyond the reach of individual investigators. We give an overview of recent advances organized along three lines: broad‐scale analyses of distributional data and spatial information, phylogenetic research circumscribing large clades with comprehensive taxon sampling, and data sets derived from improved accessibility of biodiversity literature. We also review synergies between large data resources and more traditional data collection paradigms, describe shortfalls and how to overcome them, and reflect on the future of plant biodiversity analyses in light of increasing linkages between data types and scientists in our field.

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Section: Overcoming Shortfallsmentioning

confidence: 99%

Biodiversity at the global scale: the synthesis continues

Folk

Siniscalchi

2021

American J of Botany

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Herbaria as Big Data Sources of Plant Traits

Heberling

2022

International Journal of Plant Sciences

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Herbarium specimens have long been a cornerstone of taxonomic research but are only recently being recognized for their potential as a source of spatially and temporally extensive data on plant functional traits. Many researchers in trait-based disciplines remain surprisingly unaware of this powerful use of herbaria, including functional ecologists and evolutionary biologists alike. This review brings together disparate studies to synthesize the past, current, and potential future uses of specimens as functional trait data sources, answering: 1) What insights have been made to date using specimens? (including traits measured, approaches used, research questions answered); 2) What new trait-based insights can be made from herbarium specimens? (including potential contributions to global trait databases and recent advancements such as machine learning and high throughput phenotyping); and 3) How can inherent limitations and collection biases be addressed when using specimens in unanticipated ways? (including new analytical approaches and improved methods for collecting). I conclude by identifying what is needed to foster the future of herbaria as big data sources of plant traits. Most notably, plant collecting must be continued, expanded beyond predominantly systematists, and intentionally revised with downstream trait measurements in mind. Further, community-wide standards are needed to integrate otherwise disconnected data and directly link newly derived measurements back to specimen records. Specimens serve as reliable (and necessary) sources of phenotypic data, enabling us to answer questions across phylogenetic, temporal, and spatial dimensions otherwise not possible. Herbaria should be embraced as centers for functional trait research.

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The CAM lineages of planet Earth

Gilman,

Smith,

Holtum

et al. 2023

Annals of Botany

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Background and Scope The growth of experimental studies of crassulacean acid metabolism (CAM) in diverse plant clades, coupled with recent advances in molecular systematics, presents an opportunity to re-assess the phylogenetic distribution and diversity of species capable of CAM. It has been more than two decades since the last comprehensive lists of CAM taxa were published, and an updated survey of the occurrence and distribution of CAM taxa is needed to facilitate and guide future CAM research. We aimed to survey the phylogenetic distribution of these taxa, their diverse morphology, physiology, and ecology, and the likely number of evolutionary origins of CAM based on currently known lineages. Results and Conclusions We found direct evidence – in the form of experimental or field observations of gas exchange, day–night fluctuations in organic acids, carbon isotope ratios, and enzymatic activity – for CAM in 370 genera of vascular plants, representing 38 families. Further assumptions about the frequency of CAM species in CAM clades, and the distribution of CAM in the Cactaceae and Crassulaceae, bring the currently estimated number of CAM-capable species to nearly 7% of all vascular plants. The phylogenetic distribution of these taxa suggests a minimum of 66 independent origins of CAM in vascular plants, with possibly dozens more. To achieve further insight into CAM origins, there is a need for more extensive and systematic surveys of previously unstudied lineages, particularly in living material to identify low-level CAM activity, and for denser sampling to increase phylogenetic resolution in CAM-evolving clades. This should allow further progress in understanding the functional significance of this pathway by integration with studies on the evolution and genomics of CAM in its many forms.

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Photosynthesis metabolism in the Compositae: Current knowledge and future directions

Cited by 4 publications

References 91 publications

Biodiversity at the global scale: the synthesis continues

Biodiversity at the global scale: the synthesis continues

Herbaria as Big Data Sources of Plant Traits

The CAM lineages of planet Earth

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