• Hervé Sauquet is a research scientist at the Royal Botanic Garden in Sydney, where he leads a research group focusing on diversification of angiosperms using phylogenetic and macroevolutionary approaches. (sauquetlab.org)
  • To test this hypothesis for campo rupestre vegetation, we analyzed phylogenetic diversity and community structure of angiosperm communities at two study sites within the Itacolomi State Park, Minas Gerais, Brazil. (scielo.br)
  • Phylogenetic analysis indicated a highly dynamic evolution of all three lipid-modifying enzymes in land plants, with many clade-specific duplications or losses and massive diversification of the C2-PLD family. (frontiersin.org)
  • 2011) Understanding angiosperm diversification using small and large phylogenetic trees. (phys.org)
  • comparing the age of phylogenetic diversification with the geological record to interpret the biogeographic history of this group. (berkeley.edu)
  • 2020. The delayed and geographically heterogeneous diversification of flowering plant families . (icr.org)
  • Here we investigate patterns of diversification in the African clade, time of transition from forest to more open habitat, and morphological traits associated with each habitat and evaluate if such transitions have led to modification of reproductive organs and mode of dispersal. (biomedcentral.com)
  • Variation in species richness across the tree of life, accompanied by the incredible variety of ecological and morphological characteristics found in nature, has inspired many studies to link traits with species diversification. (uky.edu)
  • Angiosperms are a highly diverse group that has fundamentally shaped life on earth since the Cretaceous, and illustrate how species diversification affects ecosystem functioning. (uky.edu)
  • The team computed the biggest evolutionary tree, taking care to include 55 473 species of flowering plants (i.e. angiosperms). (phys.org)
  • The rise of the angiosperms expanded the range of possible habitat types and niche species, and thus promoted the increase in species diversity of these plants,' said Museum botanist Dr Harald Schneider. (phys.org)
  • Bigger leaves with new chemical components led to an increase in plant-eating beetle species, and other changes in angiosperms led to more new diets. (phys.org)
  • As the climate cooled over the last ~20 million years, weevil diversification accelerated, resulting in an unusual diversity of living weevil species for such an inhospitable region - more than 30 species of Ectemnorhinini are known from the Antarctic. (memphis.edu)
  • Yet other species retained the more common weevil habit of feeding on flowering plants (angiosperms). (memphis.edu)
  • By estimating both the stem and crown ages for angiosperm families we found a difference of 37 to 56 million years between family origins [stem age] and the beginning of their diversification [crown age] into the living species we see today. (icr.org)
  • http://www.fundacaogrupoboticario.org.br/en/news/page s/new-species-of-aquatic-insects-are-discovered-in-the- amazon.aspx. (edu.pe)
  • Evolution of rapid blue‐light response linked to explosive diversification of ferns in angiosperm forests. (ufl.edu)
  • 2009. Flower evolution: the origin and subsequent diversification of the angiosperm flower. (berkeley.edu)
  • Periods of global warming may have promoted diversification and both inter- and transcontinental dispersal in northern hemisphere salamanders by making available terrain that shortened dispersal routes and offered new opportunities for adaptive and vicariant evolution," the authors conclude. (mongabay.com)
  • To put this into context, the average time lag corresponds to around a third of the entire duration of angiosperm evolution, which is at least 140 million years. (icr.org)
  • The multiplicity of SDRs in plant kingdom is mainly explained by the diversification of large families involved in different secondary metabolism pathways, suggesting that the chemical diversification that accompanied the emergence of vascular plants acted as a driving force for SDR evolution. (diva-portal.org)
  • Coupled with their nearly cosmopolitan distribution and their oft prominent place amongst world tropical floras, orchids stand as a model lineage for the study of the spatio-temporal dynamics of plant diversifications and character evolution as well as of the origin and maintenance of world landscapes. (ibcmadrid2024.com)
  • Methodological advancements in phylogenomic approaches and bioinformatic analysis now facilitate new insights into complex evolutionary relationships, trait evolution, diversification dynamics and range evolution in orchids in the context of past environmental and climatic changes. (ibcmadrid2024.com)
  • Evaluating alternative hypotheses for the early evolution and diversification of ants. (antcat.org)
  • Here, we synthesised data from 152 studies that used state-dependent speciation and extinction (SSE) models on angiosperm clades. (uky.edu)
  • Intrinsic traits related to reproduction and morphology were often linked to diversification but a set of universal drivers did not emerge as traits did not have consistent effects across clades. (uky.edu)
  • The researchers evaluated the genetic profiles of six major angiosperm clades, namely grasses (Poaceae), orchids (Orchidaceae), sunflowers (Asteraceae), beans (Fabaceae), eudicots (Eudicotyledoneae) and monocots (Monocottyledoneae). (phys.org)
  • The major clades of plethodontids were established during these episodes, contemporaneously with similar phenomena in angiosperms, arthropods, birds, and mammals. (mongabay.com)
  • Diversification time estimates date the origin of the TFC to the middle Cretaceous 91.3 million years ago (Mya) (95% highest posterior density [HPD] interval: 44.7, 149.3). (usda.gov)
  • Salamanders underwent rapid episodes of diversification and dispersal that coincided with major global warming events during the late Cretaceous and again during the Paleocene-Eocene thermal optimum," they write. (mongabay.com)
  • They started small but experienced a great diversification during the Cretaceous, eventually replacing forests dominated by gymnosperms, seed-producing plants such as conifers and cycads. (phys.org)
  • The Early Cretaceous (145-100 million years ago (Ma)) witnessed the rise of flowering plants (angiosperms), which ultimately lead to profound changes in terrestrial plant communities. (icr.org)
  • However, palaeobotanical evidence shows that the transition to widespread angiosperm-dominated biomes was delayed until the Palaeocene (66-56 Ma) [post-Cretaceous]. (icr.org)
  • Leptolejeunea may have benefitted from the large-scale distribution of humid tropical angiosperm forests in the Eocene. (uni-muenchen.de)
  • However, empirical studies that focus on the potential for interaction between animal pollination and hybridization to affect and contribute to evolutionary diversification are rare. (nature.com)
  • However, research published by an international team of researchers in the journal Proceedings of the National Academy of Sciences, U.S.A. , shows that these same Earth system processes are key drivers in diversification of one of the world's most geographically-isolated groups of insects - Ectemnorhinini weevils. (memphis.edu)
  • This project will start with angiosperm-scale floral trait and genomic data sets produced by the supervisors, but will also provide an opportunity to focus on key lineages of the Australian flora. (sauquetlab.org)
  • Understanding the drivers of this exceptional diversity requires well-resolved phylogenies and reliable diversification time estimates to facilitate interpretation of diversification dynamics. (ibcmadrid2024.com)
  • Ficus (figs) and their agaonid wasp pollinators present an ecologically important mutualism that also provides a rich comparative system for studying functional co-diversification throughout its coevolutionary history (~75 million years). (nature.com)
  • Yet, some SDR families - tropinone reductase-like proteins (SDR65C), ABA2-like-NAD dehydrogenase (SDR110C), salutaridine/menthone-reductase-like proteins (SDR114C), dihydroflavonol 4-reductase-like proteins (SDR108E) and isoflavone-reductase-like (SDR460A) proteins - have undergone significant functional diversification within vascular plants since they diverged from Bryophytes. (diva-portal.org)
  • Diversification of the crown group initiated in the Eocene or early Oligocene (38.4 Ma, 95% HPD: 27.2-52.6). (uni-muenchen.de)
  • The project will evaluate the patterns of morphological evolutionary rates in flowering plants (angiosperms) and the factors that have driven their changes. (sauquetlab.org)
  • This suggests that diversification driven by climate-cooling may be a general biodiversity paradigm underlying much of the region's present biodiversity and should be sought broadly as an explanation for the unexpected diversity of some groups of Antarctic organisms. (memphis.edu)
  • Rapid diversification and dispersal during periods of global warming by plethodontid salamanders. (mongabay.com)
  • WebThus, it is suggested here that the multitude of resources available on the terminal branches of the newly evolved angiosperm, rain forest trees led to the morphological adaptations of 35 - Based on genetic analysis of living primates calibrated by the fossil record, it is estimated that apes and Old World monkeys diverged into separate lineages around: 36 - Which fossil group is characterized by an eye orbit fully enclosed by bone? (founderops.com)
  • Diversification out of forest is associated with major shifts in morphology of the perennial tuber (specifically an increase in size and orientation which presumably led them to become pachycaul) and rotation of stem (from twining to non-twining). (biomedcentral.com)
  • This is based on Anacardiaceae being pantropical in distribution with North and South America representing major diversification centers of the family including the geographical distribution of Pistacia. (scialert.net)
  • Instead the Winteraceae were considered to be a primitive family (due to the structure of the xylem and carpel, a structure which now seems to be derived from xylem and carpels more typical of the angiosperms as a whole). (wikipedia.org)
  • A new study of fossil and molecular information revealed that ancestors to the scarab family of beetles, which include stag beetles, chafers and dung beetles , started to feed on plants shortly after angiosperms first evolved. (phys.org)
  • McKenna and Shin helped reconstruct the weevil family tree and timing and patterns of weevil diversification using large-scale DNA data, while Adams contributed his expertise in data analysis to resolving the question of where Ectemnorhini originated from. (memphis.edu)
  • less thanbrgreater than less thanbrgreater thanConclusion: The application of HMMs to plant genomes enabled us to identify 49 families that encompass all Angiosperms (higher plants) SDRs, each family being sufficiently conserved to enable simpler analyses based only on overall sequence similarity. (diva-portal.org)
  • Toward a new synthesis: Major evolutionary trends in the angiosperm fossil record. (wikipedia.org)
  • Carpolestes 6.8.2: Major Hypotheses About Primate Origins Social Sci LibreTexts, 8.who developed the visual predation hypothesis, 9.Anthro Chap 9 Flashcards.pdf 1 The arboreal hypothesis, the angiosperm radiation hypothesis proposes that, 10+ super 8 by wyndham fort mitchell cincinnati area most standard, 9+ immortal way of life game most standard, 9+ bed bath and beyond makeup organizer most standard. (founderops.com)
  • Early] angiosperms were probably small things that didn't provide many ecological opportunities, but this changed around 100 million years ago when the angiosperms became bigger and tastier,' said Museum expert Prof Alfried Vogler. (phys.org)
  • Evolutionary scientists call the sudden appearance of many types of fossils diversification . (icr.org)
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