Chongqing scientists crack potato tuberisation code for future farming

CHINA – In Chongqing, China, researchers have decoded the genetic process that drives potato tuberisation, a discovery that could change how farmers grow one of the world’s most important crops.

The research, led by Yang Yang at the Integrative Science Centre of Germplasm Creation in Western China, has been published in BMC Plant Biology.

His team focused on the molecular mechanisms that control tuber formation, identifying eight members of the StSRS gene family and classifying them into five subfamilies.

Using RNA sequencing, the scientists tracked patterns of gene activity and paid close attention to the MYB-related, GATA, and bHLH families. Two genes stood out. StSRS1 showed critical activity during the tuber stage, while StSRS8 was linked to the stolon stage.

These findings were supported by further qRT-PCR analysis, which confirmed that both genes played central roles in tuberisation.

Interestingly, the team observed that StSRS8 responded differently under short-day conditions. This suggests that environmental factors such as light can directly influence genetic regulation, a discovery that could help breeders adapt potatoes to changing climates.

“This study not only advances our understanding of potato genetics but also opens new avenues for agricultural innovation,” said Yang Yang. “The insights gained here could help improve crop performance, benefiting farmers, consumers, and the wider energy sector.”

Why this matters globally

Potatoes rank as the world’s fourth-largest food crop and serve as a major source of nutrition and bioenergy. By applying the genetic knowledge from this study, plant breeders could create varieties that yield more, resist pests, and use fewer chemical inputs.

Experts say this will be vital as population growth and climate change put new pressures on farming systems.

Agricultural scientists believe the study highlights how genetic research can directly support sustainable agriculture. More resilient potatoes would mean stable harvests for farmers and a stronger food supply for consumers.

This breakthrough comes at a time when agricultural research is delivering significant progress. Just last month, scientists in Beijing reported new findings on rice genome editing that could improve yields while cutting down on fertilizer use.

Together, these advances show how crop science is equipping farmers with tools to face climate stress and rising global food demand.

By shedding light on the genetic code of tuberisation, the Chongqing team has not only provided critical knowledge for potato farming but also reminded the world of science’s role in shaping a more secure and sustainable food future.

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