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用于分析该复合体内部遗传多样性的分子标记，重点关注阿根廷种群。

Molecular Markers for Analyses of Genetic Diversity within the Complex with Emphasis on Argentine Populations.

作者信息

Gomulski Ludvik M, Vera María Teresa, Lanzavecchia Silvia B, Piccinno Riccardo, Fiorenza Giulia, De Luca Daniel, Carrizo Beatriz N, Bouvet Juan Pedro R, Viana Valeria A, Cárceres Carlos, Enkerlin Walther, Malacrida Anna R, Gasperi Giuliano

机构信息

Department of Biology and Biotechnology, University of Pavia, 27100 Pavia, Italy.

Facultad de Agronomía, Zootecnia y Veterinaria, Universidad Nacional de Tucumán, Tucumán T4100, Argentina.

出版信息

Insects. 2024 Sep 27;15(10):748. doi: 10.3390/insects15100748.

DOI:10.3390/insects15100748
PMID:39452323
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11508799/
Abstract

The South American fruit fly (Wiedmann) has a vast range extending from northern Mexico, through Central America, to South America where it is an extremely polyphagous pest of wild and cultivated fruits. It is a complex of cryptic species currently composed of eight recognised morphotypes: "Mexican", "Venezuelan", "Andean", "Peruvian", "Ecuadorian", and the three Brazilian morphotypes "Brazilian-1", "Brazilian-2", and "Brazilian-3". Molecular markers that can identify the member species of the complex are crucial for the implementation of effective pest control measures, such as the sterile insect technique. The object of this study was to evaluate the use of the internal transcribed spacer 2 (ITS2) sequence for discriminating several members of the cryptic species complex (Mexican, Peruvian, and Brazilian-1) and a related species, Blanchard. The analysis highlighted significant genetic differentiation between the evaluated morphotypes, allowed their discrimination within the cryptic species complex, and provided new insights into their genetic relationships. The ITS2 marker provides a basis for the development of taxonomic keys for the discrimination of the cryptic taxa within the cryptic species complex. ITS2 also represents an important marker for the poorly studied species .

摘要

南美果蝇（维德曼）分布范围广阔，从墨西哥北部延伸至中美洲，直至南美洲，在南美洲它是野生和栽培水果的一种多食性害虫。它是一个隐存种复合体，目前由八种已识别的形态型组成：“墨西哥型”、“委内瑞拉型”、“安第斯型”、“秘鲁型”、“厄瓜多尔型”，以及三种巴西形态型“巴西 - 1型”、“巴西 - 2型”和“巴西 - 3型”。能够识别该复合体成员物种的分子标记对于实施有效的害虫防治措施（如不育昆虫技术）至关重要。本研究的目的是评估使用内部转录间隔区2（ITS2）序列来区分隐存种复合体的几个成员（墨西哥型、秘鲁型和巴西 - 1型）以及一个相关物种布兰查德。分析突出了所评估形态型之间的显著遗传分化，能够在隐存种复合体内对它们进行区分，并为它们的遗传关系提供了新的见解。ITS2标记为开发用于区分隐存种复合体内隐存分类单元的分类检索表提供了基础。ITS2对于研究较少的物种也是一个重要的标记。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f1dc/11508799/aac51ca69f71/insects-15-00748-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f1dc/11508799/04ee91786736/insects-15-00748-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f1dc/11508799/36d53bc4f33e/insects-15-00748-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f1dc/11508799/eb943ba472ff/insects-15-00748-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f1dc/11508799/0ebbf6b2b948/insects-15-00748-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f1dc/11508799/aac51ca69f71/insects-15-00748-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f1dc/11508799/04ee91786736/insects-15-00748-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f1dc/11508799/36d53bc4f33e/insects-15-00748-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f1dc/11508799/eb943ba472ff/insects-15-00748-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f1dc/11508799/0ebbf6b2b948/insects-15-00748-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f1dc/11508799/aac51ca69f71/insects-15-00748-g005.jpg

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