Adaptability of Aphis gossypii glover to different Capsicum annuum varieties.

IF 1.6 3区农林科学 Q2 ENTOMOLOGY

Bulletin of Entomological Research Pub Date : 2025-06-01 DOI:10.1017/S0007485325000100

Jin Yang, Hao Bang, Hanjing Yang, Jun Zhao, Muhammad Farhan, Xiaoyan Ma, Shuai Zhang

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引用次数: 0

Abstract

Aphis gossypii Glover (Hemiptera: Aphididae) is a significant pest of Capsicum annuum (Solanales: Solanaceae) and exhibits intraspecific differentiation within populations. To investigate the adaptability of Hap3 and Hap17 A. gossypii to various C. annuum varieties, including 'Lvzhou101' (LZ), 'Lashen' (LA), 'Saierweilvtianjiao' (SE), 'Haimaihongri' (HM), 'Chaotianjiao' (CT), and 'Luosijiangjun' (LS), we employed life tables to analyse growth and population parameters post-feeding and conducted petri dish host choice experiments to assess the host plant preference of A. gossypii. Survival rates of A. gossypii varied significantly across C. annuum varieties. Notably, Hap3 and Hap17 thrived on 'LZ' but failed to establish populations on 'LA'. The net reproductive rate (R₀), average generation time (T), and intrinsic rate of increase (r_m) differed markedly between Hap3 and Hap17 across C. annuum varieties. Feeding on 'LZ' resulted in a significantly higher R₀ value (26.49) for Hap3 relative to other varieties. The T (7.60 days) and r_m (0.27) values for Hap3 on 'SE' were superior to those observed on other C. annuum varieties. These findings indicate that 'SE' is the optimal host for Hap3 growth, while 'LZ' best supports Hap17. Both haplotypes exhibited the lowest adaptability to 'LA'. Therefore, the utilisation capacity of A. gossypii populations on C. annuum demonstrates differentiation, and the resistance levels among C. annuum varieties to A. gossypii vary. This differentiation can inform targeted management strategies for aphid infestations on pepper crops.

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棉蚜对不同辣椒品种的适应性研究。

棉蚜（Aphis gossypii Glover）（半翅目：蚜科）是辣椒的重要害虫，在种群内表现出种内分化。为了研究棉花Hap3和Hap17对不同棉花品种‘Lvzhou101’（LZ）、‘Lashen’（LA）、‘Saierweilvtianjiao’（SE）、‘haimahongri’（HM）、‘Chaotianjiao’（CT）和‘losijiangjun’（LS）的适应性，我们采用生命表法分析了棉花的生长和种群参数，并进行了寄主选择实验，以评估棉花对寄主植物的偏好。不同品种棉蚜成活率差异显著。值得注意的是，Hap3和Hap17在“LZ”上茁壮成长，但未能在“LA”上建立种群。不同品种间Hap3和Hap17的净繁殖率（R0）、平均世代时间(T)和内在增长率（rm）差异显著。采食‘LZ’后，Hap3的R0值显著高于其他品种（26.49）。Hap3在‘SE’上的T （7.60 d）和rm（0.27）值均优于其他品种。这些结果表明，“SE”是Hap3生长的最佳宿主，而“LZ”是Hap3生长的最佳宿主。两种单倍型对“LA”的适应性最低。因此，棉蚜种群对棉蚜的利用能力存在分化，品种间对棉蚜的抗性水平也存在差异。这种差异可以为胡椒作物蚜虫侵害的有针对性的管理策略提供信息。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Bulletin of Entomological Research 生物-昆虫学

CiteScore

4.00

自引率

0.00%

发文量

160

审稿时长

6-12 weeks

期刊介绍： Established in 1910, the internationally recognised Bulletin of Entomological Research aims to further global knowledge of entomology through the generalisation of research findings rather than providing more entomological exceptions. The Bulletin publishes high quality and original research papers, ''critiques'' and review articles concerning insects or other arthropods of economic importance in agriculture, forestry, stored products, biological control, medicine, animal health and natural resource management. The scope of papers addresses the biology, ecology, behaviour, physiology and systematics of individuals and populations, with a particular emphasis upon the major current and emerging pests of agriculture, horticulture and forestry, and vectors of human and animal diseases. This includes the interactions between species (plants, hosts for parasites, natural enemies and whole communities), novel methodological developments, including molecular biology, in an applied context. The Bulletin does not publish the results of pesticide testing or traditional taxonomic revisions.