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Sugarcane's mixed genetic heritage controls its sweetness levels

Ikram M, Zhao JY, Gao SJ

Crop Improvement

The sugar in your kitchen bowl traces back to a genetically complex hybrid plant, and understanding which ancestral genes drive sweetness could speed up breeding better varieties without decades of trial and error.

Sugarcane isn't one simple species, it's a hybrid mashup of several wild cane relatives, each contributing different chunks of DNA. Researchers looked at how much genetic material comes from each ancestral species, a concept called ancestry dosage, and found it helps explain why some sugarcane plants end up sweeter than others.

Key Findings

1

Sugarcane's genome is a mosaic of contributions from multiple ancestral Saccharum species

2

The dosage or proportion of genetic material from each ancestor correlates with sugar content traits

3

This ancestry-based approach offers a new tool for predicting and breeding for sweetness

chevron_right Technical Summary

Scientists are tracing how sugarcane's tangled genetic ancestry, a mix of different wild cane species, controls how much sugar the plant actually produces, which could help breeders create sweeter, more efficient crops faster.

hub This connects to 9 other discoveries — Sugarcane crop-improvement, genetics, food-forest 5 related articles

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Sugarcane

Sugarcane or sugar cane is a species of tall, perennial grass that is used for sugar production. The plants are 2–7 m tall with stout, jointed, fibrous stalks that are rich in sucrose, which accumulates in the stalk internodes. Sugarcanes belong to the grass family, Poaceae, an economically impor...