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Tuesday, March 31, 2020
Tags Genome size

Tag: genome size

Puzzles in Moss Genome Evolution

Some plants have pairs of chromosomes, they’re diploid organisms like us. Other plants have more than two copies of chromosomes, they’re polyploid....

Temporal patterns of Brassicaceae diversification

Huang et al. propose that whole genome duplication events serve as a constant pump for continuous and high species diversification.

Repetitive DNA is not behind genome size variation in Anacyclus

Plant genome size (GS) varies widely – by as much as a factor of 2500 in land plants alone. Outside of genome...

Cytogeography of Cystopetris fragilis complex

The widely distributed Cystopteris fragilis brittle bladder-fern, complex is a challenging system for studying polyploid evolution, cytotype diversity, distribution and ecology. Hanušová et al....

Haematococcus lacustris: the makings of a giant-sized chloroplast genome

Recent work on the green alga Haematococcus lacustris uncovered the largest plastid genome on record: a whopping 1.35 Mb (with >90% non-coding DNA). In a...

Shoot apical meristem and plant body organization: a cross-species comparative study

The shoot apical meristem (SAM) is the key organizing element of the plant body. Surprisingly, there are almost no across-species comparative data showing links...

Genome size and seed mass in Aesculus

The genus Aesculus (horse chestnut, buckeye) consists of 12 to 19 extant species native to the temperate Northern Hemisphere. Aesculus is notable amongst woody...

Does removal of secondary metabolites improve Zingiberaceous nuclei quality?

The family Zingiberaceae is well known for its range of secondary constituents and bioactive metabolites, such as flavonoids, phenolic acids and essential oils known...

Phylogeny and genome sizes of Betula

The genus Betula (birches) is widely distributed in the northern hemisphere from the arctic to the tropics. Its woody species are an important component...

Genome size, ploidy level and reproductive mode of Sorbus

The authors find that the coexistence of apomictic tetraploids and sexual diploids drives the production of novel polyploid cytotypes in S. austriaca.

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Complex interplay of responses when plants experience canopy shading

Plants react to both decreased red:far red ratio and decreased photosynthetically active radiation, and in different ways.

Simulated Herbivory Leads Grasses to Pass Fungal Symbionts to Their Offspring

Many grasses host symbiotic fungi, Epichloë spp. These fungi can help grasses tolerate herbivory, or help repel herbivores. But how do these...

The Garden Jungle by Dave Goulson

(or Gardening to Save the Planet) On my every growing to-do list is create...

X-ray dose limits for microscopy lower than we thought

Subtle damage to hydrated tissue occurs at a far lower dosage than previously thought, and may be difficult to recognize.