Results 71 to 80 of about 12,947 (267)

C4 eudicots are not younger than C4 monocots [PDF]

open access: yesJournal of Experimental Botany, 2011
C(4) photosynthesis is a plant adaptation to high levels of photorespiration. Physiological models predict that atmospheric CO(2) concentration selected for C(4) grasses only after it dropped below a critical threshold during the Oligocene (∼30 Ma), a hypothesis supported by phylogenetic and molecular dating analyses.
Christin PA   +4 more
openaire   +2 more sources

Paired Flowers of Core Eudicots Discovered from Mid-Cretaceous Myanmar Amber

open access: yesTaxonomy
A pair of connected flowers preserved in a mid-Cretaceous (early Cenomanian) Myanmar amber is described and named Antiquigemina pilosa Wang and Li gen. et sp. nov.
Fengyan Li, Weijia Huang, Xin Wang
doaj   +1 more source

First evidence for a massive extinction event affecting bees close to the K-T boundary.

open access: yesPLoS ONE, 2013
Bees and eudicot plants both arose in the mid-late Cretaceous, and their co-evolutionary relationships have often been assumed as an important element in the rise of flowering plants. Given the near-complete dependence of bees on eudicots we would expect
Sandra M Rehan   +2 more
doaj   +1 more source

Pre-meiotic 21-nucleotide reproductive phasiRNAs emerged in seed plants and diversified in flowering plants

open access: yesNature Communications, 2021
Pre-meiotic anthers of monocots accumulate phased, small interfering RNAs (phasiRNAs) that are absent in many well-studied model eudicots. Here, the authors show that such 21-nt phasiRNAs are in fact present in diverse eudicot species including ...
Suresh Pokhrel   +6 more
doaj   +1 more source

tRNA functional signatures classify plastids as late-branching cyanobacteria. [PDF]

open access: yes, 2019
BackgroundEukaryotes acquired the trait of oxygenic photosynthesis through endosymbiosis of the cyanobacterial progenitor of plastid organelles. Despite recent advances in the phylogenomics of Cyanobacteria, the phylogenetic root of plastids remains ...
Amrine, Katherine Ch   +3 more
core   +1 more source

Multi‐omics analyses shed lights on the evolution and fruit development of Chinese raspberries (Rubus spp.)

open access: yesJournal of Integrative Plant Biology, EarlyView.
High‐quality genomes of four wild raspberry species, analysis of their genetic relationships, identification of centromeres as markers for tracing their hybrid origins, exploration of fruit quality regulation, and discovery of a gene blocking anthocyanin transport and thus causing yellow fruits provides valuable resources for raspberry breeding ...
Ticao Zhang   +11 more
wiley   +1 more source

A reappraisal of the phylogenetic placement of the Aquilegia whole-genome duplication

open access: yesGenome Biology, 2020
The accurate placement of an ancient whole-genome duplication (WGD) in relation to the lineage divergence is important. Here, we re-investigated the Aquilegia coerulea WGD and found it is more likely lineage-specific rather than shared by all eudicots.
Tao Shi, Jinming Chen
doaj   +1 more source

Intact rDNA arrays of Potentilla -origin detected in Erythronium nucleus suggest recent eudicot-to-monocot horizontal transfer [PDF]

open access: gold, 2021
László Bartha   +11 more
openalex   +1 more source

What newton did not discover about falling palm fruit [PDF]

open access: yes, 2012
The oil palm (Elaeis guineensis), a monocotyledonous species in the family Arecaceae, has not only an extraordinarily oil rich fleshy mesocarp, and presents an original model to examine the ripening regulatory networks in a monocot fruit tissue.
Collin, Myriam   +8 more
core  

TRAPID : an efficient online tool for the functional and comparative analysis of de novo RNA-Seq transcriptomes [PDF]

open access: yes, 2013
Transcriptome analysis through next-generation sequencing technologies allows the generation of detailed gene catalogs for non-model species, at the cost of new challenges with regards to computational requirements and bioinformatics expertise.
Deforce, Dieter   +5 more
core   +2 more sources

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