Hybridization: a ‘double-edged sword’ for Neotropical plant diversity

Botanical Journal of the Linnean Society, Journal Year: 2021, Volume and Issue: 199(1), P. 331 - 356

Published: Sept. 30, 2021

Abstract Hybridization can facilitate both evolutionary diversification and extinction has had a critical role in plant evolution, with c. 25% of species known to hybridize some temperate floras. However, the species-rich Neotropical flora, hybridization evolution diversity remains unclear. Our review examines studies seed plants from across Neotropics explores its outcomes on evolution. We per-biome basis spectrum are evident biomes taxa. These range short-term impacts, such as broadening ecological amplitude hybrid progeny transgressive phenotypes genetic swamping, through long term generation new lineages. Among these certain themes emerge, pervasive among radiations Andean páramos, suggesting for rapid events. Finally, we highlight that is relatively understudied despite remarkable richness. The advent genomic techniques study effects groups. increasing availability resources will eventually allow comparisons between tropical floras therefore shed light impacts latitudinal biodiversity gradient.

Language: Английский

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On Overview Of Bioactive Compounds, Biological And Pharmacological Effects Of Mistletoe (Viscum Album L)

Pharmacophore, Journal Year: 2022, Volume and Issue: 13(1), P. 10 - 26

Published: Jan. 1, 2022

The genus Viscum includes many species that are mainly distributed in Europe, Africa, Asia, America, and Australia. extracts or their various preparations widely used as complementary alternative medicines the treatment of ailments. In present review, articles related to phytochemical composition mistletoe were selected, depending on host tree which it grows, well its beneficial effects highlighted. contains differen

Language: Английский

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Untangling the Evolution of American Wild Grapes: Admixed Species and How to Find Them

Frontiers in Plant Science, Journal Year: 2020, Volume and Issue: 10

Published: Feb. 7, 2020

Natural hybridization and introgression are central evolutionary processes in grape genus (Vitis). On the other hand, interspecific relationships among grapes, directionality of inferred admixture events parents hybrids not yet completely clarified. The grapes economically important crops characterized by tendrils used to climb on trees fruits harvested humans especially for consumption or produce wines liquors. American (ca. 30 species) recognised as an resource because they show biotic abiotic resistances. We analysed 3,885 genome-wide SNPs from 31 Vitis species using TreeMix software combined with f3 f4 tests. This approach allowed us infer phylogenetic explore natural taxa. Our results confirmed existence all hybrid literature (V. x champinii, V. doaniana, novae-angliae slavinii), identifying their most likely parent provided evidence additional gene flows between distantly related species. discuss our elucidate origin wild demonstrating that have ancient origins. observe involved taxa currently spread through southern regions North America. Consequently, we propose glacial cycles could triggered contact interfertile promoting local events. conclude discussing implications findings showing can provide novel insights into history grapes.

Language: Английский

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Mitigating the Mistletoe Menace: Biotechnological and Smart Management Approaches

Biology, Journal Year: 2022, Volume and Issue: 11(11), P. 1645 - 1645

Published: Nov. 10, 2022

Mistletoes have been considered a keystone resource for biodiversity, as well remarkable source of medicinal attributes that attract pharmacologists. Due to their hemiparasitic nature, mistletoes leach water and nutrients, including primary secondary metabolites, through the vascular systems plant hosts, primarily trees. As result intense mistletoe infection, hosts suffer various growth physiological detriments, which often lead tree mortality. Because easy dispersal widespread tropism, become serious pests commercial fruit timber plantations. A variety physical chemical treatment methods, along with silvicultural practices, shaped conventional management. Others, however, either failed circumvent growing range tropism these parasitic plants or present significant environmental public health risks. biocontrol approach could sidestep issues has never achieved full proof concept in real-field applications. Our review discusses downsides control techniques explores possibilities biotechnological approaches using agents transgenic technologies. It is possible smart management options will pave way technologically advanced solutions mitigate are yet be exploited.

Language: Английский

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Host-driven phenotypic and phenological differentiation in sympatric races of a parasitic plant

Flora, Journal Year: 2024, Volume and Issue: unknown, P. 152617 - 152617

Published: Sept. 1, 2024

Language: Английский

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Biotic and abiotic factors in promoting the starting point of hybridization in the Neotropical flora: implications for conservation in a changing world

Botanical Journal of the Linnean Society, Journal Year: 2022, Volume and Issue: 200(3), P. 285 - 302

Published: Oct. 20, 2022

Abstract Coevolution between floral traits and specific pollination behaviour is a significant evolutionary force in angiosperm diversification. However, hybridization also reported to occur plants with specialist syndromes. Understanding the role of pollinators plant diversification crucial, especially megadiverse regions, such as Neotropics. In this review, we examine studies Neotropics aim providing perspective on biotic abiotic factors starting hybrid zone formation. The Pleistocene was most widely cited time for occurrence facilitated by geographical range shifts, but time-calibrated analyses are needed recover more realistic scenario. Our synthesis systems suggested that generalist were associated point Neotropical flora. Bees hummingbirds likely be primary vectors interspecific gene flow, even sporadic visits bees or other could allow formation new zone. We highlight seed pollen dispersal should included an integrative discussion provide preliminary map zones Neotropics, including Brazilian vegetation cover losses last 30 years, encouraging research into human-driven anthropogenic changes and/or shift through time.

Language: Английский

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Transcriptional Basis for Haustorium Formation and Host Establishment in Hemiparasitic Psittacanthus schiedeanus Mistletoes

Frontiers in Genetics, Journal Year: 2022, Volume and Issue: 13

Published: June 13, 2022

The mistletoe Psittacanthus schiedeanus , a keystone species in interaction networks between plants, pollinators, and seed dispersers, infects wide range of native non-native tree commercial interest. Here, using RNA-seq methodology we assembled the whole circularized quadripartite structure P. chloroplast genome described changes gene expression nuclear genomes across time experimentally inoculated seeds. Of 140,467 annotated uniGenes, 2,000 were identified as differentially expressed (DEGs) classified six distinct clusters according to their profiles. DEGs also enriched functional categories related synthesis, signaling, homoeostasis, response auxin jasmonic acid. Since many orthologs are involved lateral or adventitious root formation other plant species, propose that (and perhaps rootless species), these genes participate haustorium by complex regulatory here described. Lastly, structural similarities enzymes with those host cell wall degradation fungi, suggest similar enzymatic arsenal is secreted extracellularly used mistletoes easily parasitize break through tissues host.

Language: Английский

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Examining the Needle in the Haystack: Evolutionary Relationships in the Mistletoe Genus Loranthus (Loranthaceae)

Systematic Botany, Journal Year: 2021, Volume and Issue: 46(2), P. 403 - 415

Published: Aug. 11, 2021

Abstract— The genus Loranthus (Loranthaceae) consists of ca. nine Old World species distributed from eastern Asia to Europe. , the type family, has had a complex taxonomic history that continues today, partly because most mistletoes in family have resided this genus. For reason, there are over 1800 names, vast majority which synonyms for other genera. present work sampled representatives considered bona fide members Using complete plastome sequences, nuclear ribosomal DNA, and mitochondrial 26S rDNA, phylogenetic gene trees were generated assess interspecific relationships. plastomes ranged size 121 125 kb exhibited quadripartite structure seen Santalales. These lost or pseudogenized 24 genes, including all NADH dehydrogenase complex, thus reducing genomes 90 functional genes. Cladistic analyses morphological characters conducted these compared molecular trees, informing best define clades characterize within Two major identified. Europaeus clade includes deciduous L. europaeus grewingkii lambertianus tanakae mostly above 30° N latitude. Odoratus clade, below latitude, included guizhouensis kaoi odoratus pseudo-odoratus . latter four genetically closely related, show percurrent (vs. pseudo-dichotomous) branching, evergreen leaves. Unisexual flowers apparently evolved independently each two clades. Future should focus upon delimitation whether hybridization is occurring among any members.

Language: Английский

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Comparative fruit morphology of nine Psittacanthus Mart. (Santalales: Loranthaceae) mistletoe species occurring in Mexico

Flora, Journal Year: 2024, Volume and Issue: 319, P. 152585 - 152585

Published: Aug. 27, 2024

Language: Английский

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Genetic differentiation among Psittacanthus rhynchanthus (Loranthaceae) populations: novel phylogeographic patterns in the Mesoamerican tropical lowlands

Plant Systematics and Evolution, Journal Year: 2020, Volume and Issue: 306(1)

Published: Feb. 1, 2020

Language: Английский

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