中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > Interspecific hybridization between Bursaphelenchus xylophilus and Bursaphelenchus mucronatus 林业研究(英文版) 2019,30 (2)
Position: Home > Articles > Interspecific hybridization between Bursaphelenchus xylophilus and Bursaphelenchus mucronatus Journal of Forestry Research 2019,30 (2)

Interspecific hybridization between Bursaphelenchus xylophilus and Bursaphelenchus mucronatus

作  者：
Kan-Cheng Liu;Ailing Ben;Han Zhao;Yufeng Guo;Dongxia Ca
单  位：
College of Forestry, Nanjing Forestry University, Nanjing, China;College of Forestry, Nanjing Forestry University, Nanjing, Chin;Nanjing Xiaozhuang University, Nanjing, China
关键词：
Bursaphelenchus xylophilus;Bursaphelenchus mucronatus;Interspecific hybridization;Variation;PINE-WOOD NEMATODE;SPECIES COMPLEX;WILT DISEASE;APHELENCHIDA;FUCH
摘  要：
Bursaphelenchus xylophilus is the pathogen that causes pine wilt disease, which has greatly damaged forests and ecosystems in countries of East Asia and Europe. Bursaphelenchus mucronatus is closely related to B. xylophilus in morphology and host plant specificity. A long-running debate has existed regarding whether these two species can successfully produce hybrid offspring. In the present study, we performed in the laboratory, hybridization of two B. xylophilus nematode isolates from China and Japan and three B. mucronatus isolates from China, Japan and France. Nematode isolates of B. xylophilus were successfully crossed with B. mucronatus isolates, and the rate of hybridization was relatively high; however, some hybrid offspring died. Successful hybridization occurred between B. xylophilus and B. mucronatus isolates from China, and 22 generations of hybrids were produced. All F1 hybrids could be backcrossed with their parents and produce offspring. Variation in mucro length among the hybrid offspring and their parents was observed. The hybrid offspring and their parents were inoculated into 3-months-old black pine (Pinus tunbergii) seedlings. Weaker pathogenicity of hybrid offspring was observed compared with that of their parents, and significantly fewer offspring nematodes than parents were reisolated from pines. Therefore, the offspring of B. xylophilus and B. mucronatus may exist in the forest and could influence disease epidemics.

相似文章

导出引用
计量
文章访问数: 7
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46