Phylogenomic evolutionary insights in the fern family Gleicheniaceae

Lima, Lucas Vieira; Salino, Alexandre; Kessler, Michael; Rouhan, Germinal; Testo, Weston; Argolo, Caio Suzart; Consortium, GoFlag; Almeida, Thaís Elias

doi:10.1016/j.ympev.2023.107782

Cited by 3 publications

(1 citation statement)

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“…The XRF scanning results show that 147 specimens of B. orientalis and 56 specimens of D. linearis accumulate Y in their leaves up to concentrations of 1424 and 697 µg g −1 , respectively. The fern D. linearis is widely documented for its REE (hyper)accumulation capabilities in China, but is in fact polyphyletic, representing a species complex of cryptic species ( Wei et al , 2022 ; Vieira Lima et al , 2023 ). This study reveals that some specimens of D. linearis accumulating >1000 µg g −1 REEs in their fronds are from Indonesia and the Philippines, but these populations may well represent distinct species within the D. linearis complex.…”

Section: Discussionmentioning

confidence: 99%

Prospecting for rare earth element (hyper)accumulators in the Paris Herbarium using X-ray fluorescence spectroscopy reveals new distributional and taxon discoveries

Goudard,

Blaudez,

Sirguey

et al. 2024

Annals of Botany

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Context Rare earth elements (REEs) are increasingly crucial for modern technologies. Plants could be used as a biogeochemical pathfinder and a tool to extract REEs from deposits. However, a paucity of information on suitable plants for these tasks exists. Methods We aimed to discover new REE (hyper)accumulating plant species by performing an X-ray fluorescence (XRF) survey at the Herbarium of the Muséum national d'Histoire naturelle (MNHN, Paris, France). We selected specific families based on the likelihood of containing REE-hyperaccumulating species, based on known taxa that accumulate REEs. A total of 4425 specimens, taken in the two main evolutionary lineages of extant vascular plants, were analysed, of which the two fern families Blechnaceae (n 561) and Gleicheniaceae (n 1310), and the two flowering plants Phytolaccaceae (n 1137) and Juglandaceae (n 1417). Key results Yttrium (Y) was used as a proxy for REEs for methodological reasons, and a total of 268 specimens belonging to the genera Blechnopsis (n 149), Dicranopteris (n 75), Gleichenella (n 32), Phytolacca (n 6), Carya (n 4), Juglans (n 1), and Sticherus (n 1) were identified with Y concentrations ranging from the limit of detection (LOD) >49 µg g-1 up to 1424 µg g-1. Subsequently, analysis of fragments of selected specimens by inductively coupled plasma atomic emission spectroscopy (ICP-AES) revealed that this translated to up to 6423 µg total REEs g-1 in Dicranopteris linearis and up to 4278 µg total REEs g-1 in Blechnopsis orientalis which are among the highest values ever recorded for REE hyperaccumulation in plants. It also proved the validity of Y as an indicator for REEs in XRF analysis of herbarium specimens. The presence of manganese (Mn) and zinc (Zn) was also studied with the XRF in the selected specimens. Mn was detected in 1440 specimens ranging from the detection limit at 116 µg g-1 up to 3807 µg g-1 whilst Zn was detected in 345 specimens ranging from the detection limit 77 µg g-1 up to 938 µg g-1. Conclusions & Implications This study led to the discovery of REE accumulation in a range of plant species, substantially higher concentrations in species known to be REE hyperaccumulators, and records of REE hyperaccumulators outside of the well-studied populations in China.

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Section: Discussionmentioning

confidence: 99%

Prospecting for rare earth element (hyper)accumulators in the Paris Herbarium using X-ray fluorescence spectroscopy reveals new distributional and taxon discoveries

Goudard,

Blaudez,

Sirguey

et al. 2024

Annals of Botany

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‘Out of Africa’ origin of the pantropical staghorn fern genus Platycerium (Polypodiaceae) supported by plastid phylogenomics and biogeographical analysis

Xue,

Huang,

Zhao

et al. 2024

Annals of Botany

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Background and Aims The staghorn fern genus Platycerium is one of the most commonly grown ornamental ferns, and it evolved to occupy a typical pantropical intercontinental disjunction. However, the species-level relationships in the genus have not been well-resolved, and the spatiotemporal evolutionary history of the genus also needs to be explored. Methods Plastomes of all the 18 Platycerium species were newly sequenced. Using plastome data, we reconstructed the phylogenetic relationships among Polypodiaceae members with the focus on Platycerium species, and further conducted molecular dating and biogeographic analyses of the genus. Key Results The present analyses yielded a robustly supported phylogenetic hypothesis of Platycerium. Molecular dating result showed that Platycerium split from its sister genus Hovenkampia at ~35.2 million years ago (Ma) near the Eocene-Oligocene boundary and began to diverge at ~26.3 Ma during the late Oligocene, while multiple speciation events within Platycerium occurred during the middle to late Miocene. Biogeographic analysis suggested that Platycerium originated in tropical Africa and then dispersed eastward to southeast Asia-Australasia and westward to neotropical area. Conclusions Our analyses using plastid phylogenomic approach improved understanding the species-level relationships within Platycerium. The global climate changes of both the Late-Oligocene Warming (LOW) and the cooling following the mid-Miocene Climate Optimum (MMCO) may have promoted the speciation of Platycerium, and the transoceanic long-distance dispersal (LLD) is the most plausible explanation for the genus attained its pantropical distribution. Our study to investigate the biogeographic history of Platycerium provides a case study not only for the formation of the pantropical intercontinental disjunction of fern genus but also the ‘out of Africa’ origin of plant lineages.

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Seeking the identity of an enigmatic moss by embracing phylogenomics

Aguado‐Ramsay,

Villaverde,

Garilleti

et al. 2023

J of Sytematics Evolution

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Currently, a wide range of genomic techniques is available at a relatively affordable price. However, not all of them have been equally explored in bryophyte systematics. In the present study, we apply next‐generation sequencing to identify samples that cannot be assigned to a taxon by morphological analysis or by Sanger sequencing methods. These samples correspond to a moss with an enigmatic morphology that has been found throughout Western Europe over the last two decades. They exhibit several anomalies in the gametophyte and, on the rare occasions that they appear, also in the sporophyte. The most significant alterations are related to the shape of the leaves. Morphologically, all specimens correspond to mosses of the genus Lewinskya, and the least modified samples are potentially attributable to the Lewinskya affinis complex. Specimen identifications were first attempted using up to seven molecular markers with no satisfactory results. Thus, we employed data generated from targeted enrichment using the GoFlag 408 flagellate land plant probe set to elucidate their identity. Our results demonstrate that all the enigmatic samples correspond to a single species, L. affinis s.str. This approach provided the necessary resolution to confidently identify these challenging samples and may be a powerful tool for similar cases, especially in bryophytes.

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Phylogenomic evolutionary insights in the fern family Gleicheniaceae

Cited by 3 publications

References 54 publications

Prospecting for rare earth element (hyper)accumulators in the Paris Herbarium using X-ray fluorescence spectroscopy reveals new distributional and taxon discoveries

Prospecting for rare earth element (hyper)accumulators in the Paris Herbarium using X-ray fluorescence spectroscopy reveals new distributional and taxon discoveries

‘Out of Africa’ origin of the pantropical staghorn fern genus Platycerium (Polypodiaceae) supported by plastid phylogenomics and biogeographical analysis

Seeking the identity of an enigmatic moss by embracing phylogenomics

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