您好，欢迎访问云南省农业科学院 机构知识库！

Resistance screening in progenies of carrot wild relatives x carrot breeding lines to the northern root-knot nematode (Meloidogyne hapla) and histological characterization of plant-nematode interaction

文献类型： 外文期刊

作者： Nothnagel, T. 1 ; Eidel, N. 2 ; Yu, Ping 3 ; Zhang, Shaosong 3 ; Budahn, H. 1 ;

作者机构： 1.Julius Kuhn Inst, Fed Res Ctr Cultivated Plants, Inst Breeding Res Hort Crops, Quedlinburg, Germany

2.Geisenheim Univ, Geisenheim, Germany

3.Yunnan Acad Agr Sci, Biotechnol & Genet Germplasm Inst, Kunming, Yunnan, Peoples R China

关键词： Daucus carota; wild relatives; alloplasmic carrots; nematode resistance

期刊名称：PROCEEDINGS OF THE II INTERNATIONAL SYMPOSIUM ON CARROT AND OTHER APIACEAE

ISSN： 0567-7572

年卷期： 2019 年 1264 卷

页码：

收录情况： SCI

摘要： In Central and Northern Europe, the northern root-knot nematode Meloidogyne hapla is one of the most important pests in carrot production. Extensive galling, forking of the taproot and enhanced lateral root formation can completely prevent commercial usage of the carrots. Currently, no M. hapla resistant carrot cultivars are available. The study presents the evaluation of carrot wild relatives as well as progenies of wild relatives x carrot breeding lines in a climatic chamber test for resistance to M. hapla. Individual plants were cultivated in sand-filled plastic boxes for four weeks followed by inoculation with 400 s-stage juveniles (J2) of M. hapla per plant. After incubation for nine to ten weeks the plant roots were washed and stained with Cochenille A. Galls and egg masses were counted visually. Most of the tested wild relatives and a number of individual plants of wild relatives x carrot breeding lines showed a reduced number of galls and egg masses in comparison to the susceptible carrot 'Rotin'. Altogether 107 plants, completely without galls and egg masses, were selected for seed production. These progenies are available for future genetic studies. Histological slices of root tissue with galls and egg masses of different stages were prepared to investigate the plant-nematode interaction during pathogenesis. The non-destructive resistance screening approach, combined with histological analyses, represents the methodical basis for further breeding activities.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：云南省农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台