Tag: Plant Breeding

In maize (Zea mays), loss of function mutations in genes involved in starch biosynthesis characterize sweet corn varieties that have increased sugar content in the kernel. Specifically, lines carrying the shrunken2 (sh2) allele revolutionized the corn industry in Northern America in the last 50 years…

During domestication of maize, one of the favorable traits was meristem size. Understanding the genetic circuit of maize meristem development and engineering for crop productivity are important from an agricultural perspective. In this article, Lie et al. used CRISPR-Cas9 to edit the promoter regions…

More than half of human calories come from rice, wheat, and corn, although many other cereals have been domesticated as food crops. Several of these “orphan” cereal crops and their wild relatives are being studied with the goal of diversifying our food supply, which is particularly important due…

Few fruits have a more distinctive color than strawberry (Fragaria spp). Anthocyanins are responsible for strawberry’s characteristic red pigmentation with variations in receptacle color caused by altered anthocyanin levels. While the flavonoid synthesis pathway accountable for anthocyanin accumulation…

In a rosette-forming plant like Arabidopsis, leaf radial angle is optimized to prevent self-shielding. By contrast, in a plant such as sorghum, leaf vertical angle affects self-shading. A “smart canopy” model has been proposed in which upper leaves have a more upright orientation to allow more light…

As heterotrophs, we are what we eat. One of the UN Sustainable Development Goals is to end all forms of hunger, including the “hidden hunger” that results from nutrient deficiencies. Van Der Straeten et al. provide an overview of biofortification strategies. They review current successes from…

This week’s announcement of the Nobel Prize in Chemistry being awarded to Emmanuelle Charpentier and Jennifer A. Doudna “for the development of a method for genome editing” comes as no surprise to many. CRISPR (clustered regularly interspaced short palindromic repeats)– Cas (CRISPR-associated…

Potato (Solanum tuberosum) is the third most important food crop worldwide. It is also a clonally propagated tetraploid, making progress in breeding genetically improved cultivars extremely difficult. Therefore, there are ongoing efforts to redomesticate potato from a tetraploid, tuber-propagated crop…