Rapid Lamarckian Evolution you can see - the Bean rhizosphere microbiome


Epigenetics is the study of how environmental factors can change gene expression without changing the DNA sequence. This can be affected by the rhizosphere microbiome, which is the community of microorganisms that live in the soil around plant roots. The composition of the rhizosphere microbiome can be influenced by a variety of factors, including the plant genotype, the soil type, and the presence of other plants or animals.

Horizontal gene transfer (HGT) is the process by which genes are transferred between organisms that are not closely related. This can happen through a variety of mechanisms, including conjugation, transformation, and transduction. HGT can have a significant impact on the evolution of plant genomes, and it can also affect the composition of the rhizosphere microbiome.

Transposable elements (TEs) are DNA sequences that can move around within the genome. TEs can have a variety of effects on plant genes, including silencing, activation, and rearrangement. TEs can also affect the composition of the rhizosphere microbiome, as they can be transferred between plants and microorganisms.

The interplay between epigenetics, HGT, and TEs can have a significant impact on the linking of rhizosphere microbiome composition of wild and domesticated Phaseolus vulgaris to genotypic and root phenotypic traits. For example, epigenetic changes can affect the expression of genes that are involved in the plant's response to the rhizosphere microbiome. HGT can introduce new genes into the plant genome that can affect the plant's interaction with the rhizosphere microbiome. TEs can move around the genome and affect the expression of genes that are involved in the plant's response to the rhizosphere microbiome.

This is a complex area of research, and there is still much that we don't know about how epigenetics, HGT, and TEs affect the linking of rhizosphere microbiome composition of wild and domesticated Phaseolus vulgaris to genotypic and root phenotypic traits. However, the research that has been done so far suggests that these factors can play a significant role in this process.

The study "Linking rhizosphere microbiome composition of wild and domesticated Phaseolus vulgaris to genotypic and root phenotypic traits" by Pérez-Jaramillo et al. (2017) investigated the relationship between the rhizosphere microbiome composition of wild and domesticated common bean (Phaseolus vulgaris) and the genotypic and root phenotypic traits of these plants.

The researchers found that the rhizosphere microbiome of wild common bean accessions was significantly different from that of domesticated accessions. Wild accessions had a higher abundance of Bacteroidetes and Verrucomicrobia, while domesticated accessions had a higher abundance of Actinobacteria and Proteobacteria. These differences in rhizosphere microbiome composition were associated with differences in specific root length, with wild accessions having a higher specific root length than domesticated accessions.

The researchers also found that the rhizosphere microbiome composition of common bean accessions was correlated with the genotypic trajectory of these plants. As the genotypic trajectory went from wild to modern, there was a gradual decrease in the abundance of Bacteroidetes and Verrucomicrobia, and an increase in the abundance of Actinobacteria and Proteobacteria.

These findings suggest that the rhizosphere microbiome of common bean plays an important role in the plant's growth and development. The specific composition of the rhizosphere microbiome is likely influenced by both the plant genotype and the environmental conditions. Further research is needed to understand the mechanisms by which the rhizosphere microbiome affects plant growth and development.

Here are some of the key findings of the study:

  • The rhizosphere microbiome of wild common bean accessions is significantly different from that of domesticated accessions.

  • The rhizosphere microbiome composition of common bean accessions is correlated with the genotypic trajectory of these plants.

  • The rhizosphere microbiome plays an important role in the plant's growth and development.

This study provides new insights into the relationship between the rhizosphere microbiome and plant growth and development. The findings of this study could be used to improve the cultivation of common bean and other crops.

https://www.sciencedirect.com/science/article/abs/pii/S0956053X23004798


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