Drought reduced the adaptability of Myzus persicae on drought-tolerant potato cultivars

IF 5.6 1区农林科学 Q1 ENTOMOLOGY

Entomologia Generalis Pub Date : 2024-07-09 DOI:10.1127/entomologia/2023/2315

Ke-Xin Zhang, Chun-Yan Lin, Hui-Ping Liu, Inzamam UI Haq, Peter Quandahor, Yu-Ping Gou, Chun-Chun Li, Ze-Yuan Yang, Chang-Zhong Liu

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Abstract

Abstract: Drought and aphids are the key abiotic and biotic stresses on potato, respectively. Understanding the adaptability of aphid populations on potato cultivars that exhibit contrasting drought-tolerance (hereafter as different potato cultivars) under drought conditions is key for developing effective aphid management strategies in the context of climate change. We assessed the adaptability of the peach potato aphid, Myzus persicae, on various potato cultivars under drought conditions using the age-stage, two-sex life table theory. We found that drought reduced M. persicae adaptability in the three cultivars: Qingshu 9 (drought-tolerant), Longshu 3 (moderately drought-tolerant), and Atlantic (drought-susceptible). This was demonstrated by the longer developmental duration and total pre-reproductive period, lower adult longevity, survival rate, and fecundity, shorter reproduction days, as well as the lower net reproductive rate (R 0), intrinsic rate of increase (r), finite rate of increase (λ), and population size under drought conditions. Under drought conditions, M. persicae pre-adult survival rate, proportion of female adults (Nf /N), and R 0 suffered a greater reduction on Qingshu 9. Population projection showed a 100-fold reduction of aphid population size on Qingshu 9 after 90 days. The findings suggest that drought increased the resistance of the drought-tolerant cultivar to the aphid. Based on the present findings, drought-tolerant cultivars are encouraged to plant in arid lands under drought conditions to increase potato resistance to aphids while maintaining their growth under drought conditions.

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干旱降低了柿蕈蚊对耐旱马铃薯栽培品种的适应性

摘要：干旱和蚜虫分别是马铃薯的主要非生物胁迫和生物胁迫。了解耐旱性不同的马铃薯栽培品种（以下简称不同马铃薯栽培品种）上的蚜虫种群在干旱条件下的适应性是在气候变化背景下制定有效的蚜虫管理策略的关键。我们利用年龄阶段、两性生命表理论评估了桃薯蚜在干旱条件下对不同马铃薯栽培品种的适应性。我们发现，干旱降低了桃薯蚜对三个栽培品种的适应性：青薯 9 号（耐旱）、龙薯 3 号（中度耐旱）和大西洋（易旱）。在干旱条件下，柿树蝇的发育期和总生殖前期较长，成虫寿命、存活率和繁殖率较低，繁殖天数较短，净繁殖率（R 0）、内在增长率（r）、有限增长率（λ）和种群数量均较低。在干旱条件下，青树 9 号上蚜虫的成虫存活率、雌成虫比例（Nf /N）和净生殖率（R 0）均有较大幅度的下降。种群预测结果表明，90 天后，青树 9 号上的蚜虫种群数量减少了 100 倍。研究结果表明，干旱增强了耐旱栽培品种对蚜虫的抗性。根据本研究结果，鼓励在干旱条件下的干旱地区种植耐旱栽培品种，以提高马铃薯对蚜虫的抗性，同时保持其在干旱条件下的生长。

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来源期刊

Entomologia Generalis 生物-昆虫学

CiteScore

7.10

自引率

18.80%

发文量

审稿时长

>12 weeks

期刊介绍： Its scope covers all aspects of basic and applied research dealing with insects and more broadly with arthropods inhabiting wild, agricultural and/or urban habitats. The journal also considers research integrating various disciplines and issues within the broad field of entomology and ecology. Entomologia Generalis publishes high quality research articles on advances in knowledge on the ecology and biology of arthropods, as well as on their importance for key ecosystems services, e.g. as biological control and pollination. The journal devotes special attention to contributions providing significant advances (i) on the fundamental knowledge and on sustainable control strategies of arthropod pests (including of stored products) and vectors of diseases, (ii) on the biology and ecology of beneficial arthropods, (iii) on the spread and impact of invasive pests, and (iv) on potential side effects of pest management methods. Entomologia Generalis welcomes review articles on significant developments in the field of entomology. These are usually invited by the editorial board, but proposals may be sent to the Editor-in-Chief for preliminary assessment by the editorial board before formal submission to the journal. The journal also considers comments on papers published in Entomologia Generalis, as well as short notes on topics that are of broader interest.