Does Cell Size Impact Chloroplast Genome Size?

Does Cell Size Impact Chloroplast Genome Size?

There is a strong positive relationship between nuclear genome size and cell size across the eukaryotic domain, but the cause and effect of this relationship is unclear. A positive coupling of cell size and DNA content has also been recorded for various bacteria, suggesting that, with some exceptions, this association might be universal throughout the tree of life. However, the link between cel...

Genome Size: Does Bigger Mean Worse?

Genome sizes vary enormously. This variation in DNA content correlates with effective population size, suggesting that deleterious additions to the genome can accumulate in small populations. On this view, the increased complexity of biological functions associated with large genomes partly reflects evolutionary degeneration.

Does Chloroplast Size Influence Photosynthetic Nitrogen Use Efficiency?

High nitrogen (N) supply frequently results in a decreased photosynthetic N-use efficiency (PNUE), which indicates a less efficient use of accumulated Ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco). Chloroplasts are the location of Rubisco and the endpoint of CO2 diffusion, and they play a vital important role in photosynthesis. However, the effects of chloroplast development on phot...

Genome size

Materials and Methods Genome Size The haploid genome size (C-value, in pg) of 1461 ray-finned fish species (Actinopterygii) was downloaded from the Animal Genome Size Database (www.genomesize.com). Unless otherwise stated, comparisons of genome sizes are performed on the C-values, which can be converted to number of base pairs by the following: number of base pairs = C-value × 0.978 × 109. Seve...

The sinoatrial node: cell size does matter.