文献类型： 外文期刊

作者： Yang, Qiong ¹ ; Umina, Paul A. ¹ ; Wei, Shujun ³ ; Bass, Chris ⁴ ; Yu, Wenjuan ⁵ ; Robinson, Katie L. ¹ ; Gill, Alex ¹ ; Zhan, Dongwu ¹ ; Ward, Samantha E. ² ; van Rooyen, Anthony ² ; Hoffmann, Ary A. ¹ ;

作者机构： 1.Univ Melbourne, Inst Bio 21, Sch Biosci, Parkville, Vic 3010, Australia

2.Cesar Australia, 293 Royal Parade, Parkville, Vic 3052, Australia

3.Beijing Acad Agr & Forestry Sci, Inst Plant Protect, Beijing 100097, Peoples R China

4.Univ Exeter, Coll Life & Environm Sci Biosci, Penryn Campus, Penryn TR10 9FE, England

5.Sichuan Acad Agr Sci, Inst Plant Protect, MOA Key Lab Integrated Management Pests Crops Sout, Chengdu 610066, Peoples R China

关键词： regional variation; primary endosymbiont; secondary endosymbiont; Myzus persicae

期刊名称：DIVERSITY-BASEL （ 影响因子：2.4； 五年影响因子：2.5 ）

ISSN：

年卷期： 2023 年 15 卷 2 期

页码：

收录情况： SCI

摘要： The green peach aphid, Myzus persicae, is globally distributed and an important pest of many economically valuable food crops, largely due to its ability to transmit plant viruses. Almost all aphids, including M. persicae, carry the obligate symbiont Buchnera aphidicola, which provides essential amino acids that aphids cannot obtain from the phloem of plants themselves. Many aphids also harbor facultative (secondary) endosymbionts, which provide benefits under specific ecological conditions. In this study, we screened for secondary endosymbionts in M. persicae, with a particular focus on Australian populations where this species is growing in status as a major agricultural pest. We compared 37 Australian M. persicae populations with other populations, including 21 field populations from China and 15 clones from the UK, France, Italy, Greece, USA, Spain, South Korea, Chile, Japan and Zimbabwe. No secondary endosymbionts were identified in M. persicae samples outside of China, despite samples covering a wide geographic range and being collected from several host plant families. We detected two secondary endosymbionts (Rickettsia, Spiroplasma) in Chinese samples, although diversity appeared lower than detected in a recent study. We also found very high clonal diversity in Chinese samples based on DNA microsatellite markers in comparison with lower clonal diversity from Australia. These patterns may indicate a higher diversity of secondary endosymbionts (and clonal diversity) in the native range of M. persicae when compared to its invasive range.