A comprehensive phylogenomic framework for cycads (Cycadales) [PDF]
PhytoKeysHere we present a time-calibrated phylogeny of 346 cycad accessions, covering ≈86% of the 380 accepted species, across all 10 extant genera, inferred from 1,409 single-copy nuclear loci (411,345 amino acid sites) derived from transcriptome and genome ...
Michael Calonje +2 more
doaj +4 more sources
Spermatophyta Molecular Clock: Time Drift and Recent Acceleration. [PDF]
Plant Environ InteractExponential increase in the base substitution rate in recent geologic time. ABSTRACT Angiospermae radiation is widely recognized as a mid‐Cretaceous event, but the adaptive radiation of Asarum and Viola as spring ephemerals also occurred during the Quaternary. To better understand the evolution of Angiospermae through geological time, a robust and well‐
Osozawa S.
europepmc +2 more sources
Phylogenetic reconciliation provides new insights into the evolutionary diversification of the glutamine synthetase gene family in seed plants. [PDF]
FEBS JPhylogenetic analyses of glutamine synthetase (GS) in seed plants revealed that all three major evolutionary lineages (GS2, GS1a, and GS1b) must have been present in the common ancestor, with GS2 being the first lineage to diverge. Unlike GS1b, GS1a and GS2 are usually single‐copy genes, even though they underwent duplications that resulted in ...
Aledo E +3 more
europepmc +2 more sources
The complete chloroplast genome of Microcycas calocoma (Miq.) A. DC. (Zamiaceae, Cycadales) and evolution in Cycadales [PDF]
PeerJ, 2020 Cycadales is an extant group of seed plants occurring in subtropical and tropical regions comprising putatively three families and 10 genera. At least one complete plastid genome sequence has been reported for all of the 10 genera except Microcycas ...
Aimee Caye G. Chang +7 more
doaj +3 more sources
Phylotranscriptomics Shed Light on Intrageneric Relationships and Historical Biogeography of Ceratozamia (Cycadales) [PDF]
Plants, 2023 Ceratozamia Brongn. is one of the species-rich genera of Cycadales comprising 38 species that are mainly distributed in Mexico, with a few species reported from neighboring regions.
Sadaf Habib +6 more
doaj +2 more sources
Unraveling Biogeographic Boundaries Within the Sierra Madre Oriental, México: An Endemicity Analysis Using a Taxonomically Diverse Dataset. [PDF]
Ecol EvolWe provide boundaries of the Sierra Madre Oriental in Mexico through a multi‐taxa endemicity analysis. ABSTRACT The Sierra Madre Oriental (SMO) is a significant mountain range and one of Mexico's 14 biogeographical provinces. Its delimitation has been debated.
Goyenechea Mayer-Goyenechea I +5 more
europepmc +2 more sources
High-performance liquid chromatography – diode array detection method validation for amentoflavone-type biflavonoids in five Encephalartos species with potential neuroprotective activity [PDF]
Scientific ReportsGinkgo biloba is a well-known food supplement for enhancing memory and is rich in biflavonoids. Biflavonoids are predominant in the Order Cycadales (cycads). Among cycads, five Encephalartos species, E. ferox, E. kisambo, E. laurentianus, E.
Zainab G. El-Natory +4 more
doaj +2 more sources
Diversity and host plant utilization of leaf-mining beetles of Chrysomeloidea (Coleoptera) in Japan [PDF]
ZooKeysThe superfamily Chrysomeloidea (Cerambycidae + Chrysomelidae + Megalopodidae) encompasses a diverse phytophagous beetles, whose larvae exhibit internal or external feeding on leaves, wood, or roots of many plants.
Makoto Kato, Yume Imada
doaj +4 more sources
Monograph of Ceratozamia (Zamiaceae, Cycadales): an endangered genus [PDF]
PhytoKeys, 2022 Ceratozamia (Zamiaceae, Cycadales), is a member one of the most endangered seed plant groups. Species of Ceratozamia grow from near sea level up to 2,100 meters in Mexico and Mesoamerica.
Lilí Martínez-Domínguez +3 more
doaj +3 more sources
Diversity, 2023 Heterocyte-forming cyanobacteria form symbiotic relationships with several lineages of plants. Here, twenty (20) strains of endosymbiotic cyanobacteria (cyanobionts) with Nostoc-like morphologies were isolated from the highly specialized coralloid roots ...
Melissa H. Pecundo +6 more
doaj +1 more source