3 years ago

Translational Research: Exploring and Creating Genetic Diversity

Translational Research: Exploring and Creating Genetic Diversity
Abdelhafid Bendahmane, Pierre Jacob, Adi Avni

The crop selection process has created a genetic bottleneck ultimately restricting breeding output. Wild relatives of major crops as well as the so-called ‘neglected plant' species represent a reservoir of genetic diversity that remains underutilized. These species could be used as a tool to discover new alleles of agronomic interest or could be the target of breeding programs. Targeted induced local lesions in the genome (TILLING) can be used to translate in neglected crops what has been discovered in major crops and reciprocally. However, random mutagenesis, used in TILLING approaches, provides only a limited density of mutational events at a defined target locus. Alternatively, clustered regularly interspaced short palindromic repeats (CRISPR) associated 9 (Cas9) fused to a cytidine deaminase could serve as a localized mutagenic agent to produce high-density mutant populations. Artificial evolution is at hand.

Publisher URL: http://www.cell.com/trends/plant-science/fulltext/S1360-1385(17)30232-7

DOI: 10.1016/j.tplants.2017.10.002

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