Germplasm screening of Musa spp. for resistance to Fusarium oxysporum f. sp cubense tropical race 4 (Foc TR4)

文献类型： 外文期刊

第一作者： Zuo, Cunwu

作者： Zuo, Cunwu;Deng, Guiming;Li, Chunyu;Hu, Chunhua;Kuang, Ruibin;Yang, Qiaosong;Dong, Tao;Sheng, Ou;Yi, Ganjun;Zuo, Cunwu;Deng, Guiming;Li, Chunyu;Hu, Chunhua;Kuang, Ruibin;Yang, Qiaosong;Dong, Tao;Sheng, Ou;Yi, Ganjun;Li, Bin;Huo, Heqiang

作者机构：

关键词： Fusarium oxysporum f. sp cubense tropical race 4 (Foc TR4); Resistance evaluation; Genome type; East African highland bananas (EAHBs); Plantains

期刊名称：EUROPEAN JOURNAL OF PLANT PATHOLOGY （ 影响因子：1.907； 五年影响因子：2.022 ）

ISSN： 0929-1873

年卷期： 2018 年 151 卷 3 期

页码：

收录情况： SCI

摘要： Fusarium oxysporum f. sp. cubense tropical race 4 (Foc TR4) has seriously threatened global banana production. Recently, identification of Foc TR4 in the Caribbean and Mozambique has aroused widespread concern because it may be directly related to food security for millions of people in Africa and Latin America. To identify a resistant or highly resistant germplasm, 129 accessions were evaluated for Foc TR4 resistance in greenhouses and 100 of them were also assessed in the field. In total, 10 accessions were highly resistant (HR) to Foc TR4; these include four from the AA group, two from the BB group, one of the East African highland bananas (EAHBs), two plantains, and one from wild relatives of banana. Of these, Pahang (AA), Calcutta 4 (AA), and Musa itinerans exhibited the highest degree of resistance with an index of disease (ID2) less than 10, and Foc TR4 could not infect any of them in the field. Furthermore, 31 accessions from AA, AB, AAB, AAAB, and ABB groups and wild relatives were identified as a resistant (R) germplasms. All tested EAHBs and plantains exhibited resistance or high resistance to Foc TR4 infection. Our results provide valuable genetic resources for banana breeding and for studying the mechanisms underlying Fusarium wilt resistance. Furthermore, evaluation of EAHBs and plantains provided a rational for local banana producers and researchers to grow EAHBS and plantains.

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