A comprehensive phylogenomic framework for cycads (Cycadales) [PDF]
Here 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
The complete chloroplast genome of Microcycas calocoma (Miq.) A. DC. (Zamiaceae, Cycadales) and evolution in Cycadales [PDF]
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]
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
Diversity and host plant utilization of leaf-mining beetles of Chrysomeloidea (Coleoptera) in Japan [PDF]
The 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]
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
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
Transcriptome sequencing data provide a solid base to understand the phylogenetic relationships, biogeography and reticulated evolution of the genus Zamia L. (Cycadales: Zamiaceae) [PDF]
Shouzhou Zhang, , Shanshan Dong
exaly +2 more sources
La diversificación de las cícadas y la biodiversidad tropical
El reciente e inesperado descubrimiento de que las Cycadales actuales no son relictos Jurásico-Cretácicos (200-65 Mya), ya que todos sus géneros iniciaron su diversificación durante el Mioceno Tardío (12 Mya), ha puesto en entredicho un mito evolutivo ...
V. Rull
doaj +1 more source
The first xiphydriid wood wasp in Cretaceous amber (Hymenoptera: Xiphydriidae) and a potential association with Cycadales [PDF]
A new genus and species of fossil wood wasp is described and figured from mid-Cretaceous Kachin amber, representing the first occurrence of the family Xiphydriidae in the fossil record. Paraxiphydria resinata gen. et sp. nov. exhibits typical apomorphies
J. Gao +6 more
doaj +1 more source
Background Even if they are considered the quintessential “living fossils”, the fossil record of the extant genera of the Cycadales is quite poor, and only extends as far back as the Cenozoic.
Mario Coiro, Christian Pott
doaj +1 more source

