Variations in starch granule morphology caused by mutations in genes from the starch biosynthetic pathway in barley (IMAGE)

Okayama University

Variations in starch granule morphology caused by mutations in genes from the starch biosynthetic pathway in barley

Caption

In a study published in Theoretical and Applied Genetics on 31 August, 2024, researchers explored genetic interactions among different starch biosynthesis genes in barley. In this figure, the top panel from left to right shows: Haruna Nijo (wild-type), hvbe2a (increase in elongated starch granules), hvisa1 (increase in compound starch granules), in the bottom panel, from left to right: hvflo6 (increase in compound startch granules), hvflo6 hvbe2a (increase in compound starch granules and elongated starch granules), and hvisa1 hvbe2a (return to the shape closely resembling the wild-type). The wild-type Haruna Nijo produces both large and small starch granules. The hvbe2a, hvisa1, and hvflo6 mutants each exhibit starch granules with shapes distinct from those of the wild-type. In double mutants, starch granule morphology is further altered, or the effects of the individual mutations are reduced. Scale bar = 20 μm.

Credit

Associate Professor Ryo Matsushima from Okayama University

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