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Potential areas for the establishment of citrus leprosis virus vectors, Brevipalpus spp., in Mexico
Experimental and Applied Acarology ( IF 1.8 ) Pub Date : 2021-06-01 , DOI: 10.1007/s10493-021-00631-5
Carmen Asunción Castro-Resendiz , Gabriel Otero-Colina , Juan Ángel Quijano-Carranza , Enrique Martínez-Meyer , Héctor González-Hernández , Carlos Cuellar-Zambrano , Lauro Soto-Rojas

Citrus leprosis is a viral disease vectored by the mites Brevipalpus californicus and Brevipalpus yothersi. This work aimed to determine the potential areas for establishment of both mites and viruses in Mexico, based on the geographical distribution of the hosts and the climatic suitability for the vectors. Life tables of both mites were constructed to determine their thermal requirements—base temperature and degree-days required to complete life cycle—and population growth parameters—net reproduction rate, generation time, and intrinsic growth rate. For this, the mites were confined in Citrus aurantium fruits at 20, 22.5, 25 or 30 °C, 60 ± 5% RH and L14:D10 h photoperiod. Maps were generated where the climatic suitability for establishment of the mites and the citrus leprosis viruses was estimated in citrus-producing municipalities. The climatic suitability was determined through historical temperature records to calculate the potential number of generations per year, and ecological niche modeling based on collecting localities and bioclimatic variables using the algorithm Maxent. The base temperature was 9.5 °C for B. californicus and 10.2 °C for B. yothersi; degree-days required to reach adulthood were 372.1 and 331.7 °C, respectively. Potential sites for establishment of B. yothersi are mostly lowlands, whereas for B. californicus they are both lowlands and highlands. Temperature data indicate that B. californicus has fewer sites where it can develop > 16 generations per year than B. yothersi. According to our results, the sites where citrus leprosis is most likely to present high incidence are the sweet orange cultivars bordering the Gulf of Mexico.



中文翻译:

在墨西哥建立柑橘麻风病毒载体 Brevipalpus spp. 的潜在领域

柑橘麻风是一种病毒性疾病,由螨虫Brevipalpus californicusBrevipalpus yothersi 传播。这项工作旨在根据宿主的地理分布和媒介的气候适宜性,确定在墨西哥建立螨虫和病毒的潜在区域。构建两种螨虫的生命表以确定它们的热需求——完成生命周期所需的基础温度和度数——以及种群增长参数——净繁殖率、世代时间和内在增长率。为此,螨虫被限制在柑橘属植物中果实在 20、22.5、25 或 30 °C,60 ± 5% RH 和 L14:D10 h 光周期下。生成了地图,其中估计了柑橘生产城市中螨类和柑橘麻风病毒的气候适宜性。气候适宜性是通过历史温度记录确定的,以计算每年的潜在世代数,以及基于使用 Maxent 算法收集地点和生物气候变量的生态位建模。B. californicus的基础温度为 9.5 °C,B . yothersi的基础温度为10.2 °C ;达到成年所需的度日分别为 372.1 和 331.7 °C。B. yothersi 的潜在建立地点主要是低地,而B. californicus它们都是低地和高地。温度数据表明,与B. yothersi相比,B. californicus每年可发育 > 16 代的地点更少。根据我们的结果,柑橘麻风病最有可能呈现高发的地点是与墨西哥湾接壤的甜橙品种。

更新日期:2021-06-01
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