Population genomics reveals population structure and local adaptation of the Helicoverpa armigera lineage in Xinjiang, China DOI

Bofeng Hou,

Yanjun Cai, Jianpeng Zhang

et al.

Pest Management Science, Journal Year: 2025, Volume and Issue: unknown

Published: April 7, 2025

Abstract BACKGROUND The cotton bollworm, Helicoverpa armigera , is a global pest of many crops, particularly cotton. Populations in Xinjiang (north‐western China) are distinct from other major lineages eastern China and elsewhere. Cotton grown wide range climatic conditions but little known about H. population structure gene exchange, either within or between it the populations. RESULTS Population analyses showed significant flow throughout western‐most collections, Kashi Shawan, were most divergent, both each collections. Demographic history dynamics revealed peak ancestral size for populations during relatively warm humid period 5000–10 000 years ago. Selective sweep found local adaptation genes including several CYP9A two trehalose transport 1 ( Tret1 ) genes, Shawan CYP6AE plus basic juvenile hormone‐suppressible protein BJSP‐1 Methuselah genes. Spikes introgression cyc tim per related to circadian rhythm also detected and/or CONCLUSION genetically differentiated at whole‐genome level. Despite some evidence introgression, they show detoxification, various stress tolerances development. Management strategies against should consider these regional differences. © 2025 Society Chemical Industry.

Language: Английский

Population genomics reveals population structure and local adaptation of the Helicoverpa armigera lineage in Xinjiang, China DOI

Bofeng Hou,

Yanjun Cai, Jianpeng Zhang

et al.

Pest Management Science, Journal Year: 2025, Volume and Issue: unknown

Published: April 7, 2025

Abstract BACKGROUND The cotton bollworm, Helicoverpa armigera , is a global pest of many crops, particularly cotton. Populations in Xinjiang (north‐western China) are distinct from other major lineages eastern China and elsewhere. Cotton grown wide range climatic conditions but little known about H. population structure gene exchange, either within or between it the populations. RESULTS Population analyses showed significant flow throughout western‐most collections, Kashi Shawan, were most divergent, both each collections. Demographic history dynamics revealed peak ancestral size for populations during relatively warm humid period 5000–10 000 years ago. Selective sweep found local adaptation genes including several CYP9A two trehalose transport 1 ( Tret1 ) genes, Shawan CYP6AE plus basic juvenile hormone‐suppressible protein BJSP‐1 Methuselah genes. Spikes introgression cyc tim per related to circadian rhythm also detected and/or CONCLUSION genetically differentiated at whole‐genome level. Despite some evidence introgression, they show detoxification, various stress tolerances development. Management strategies against should consider these regional differences. © 2025 Society Chemical Industry.

Language: Английский

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