A complex resistance locus in Solanum americanum recognizes a conserved Phytophthora effector

文献类型： 外文期刊

第一作者： Witek, Kamil

作者： Witek, Kamil;Lin, Xiao;Karki, Hari S.;Jupe, Florian;Witek, Agnieszka, I;Fairhead, Sebastian;Heal, Robert;Barrett, William;Wu, Chih-Hang;Adachi, Hiroaki;Song, Tianqiao;Kamoun, Sophien;Tomlinson, Laurence;Jones, Jonathan D. G.;Steuernagel, Burkhard;Wulff, Brande B. H.;Stam, Remco;van Oosterhout, Cock;Cocker, Jonathan M.;Cocker, Jonathan M.;Bhanvadia, Shivani;Vleeshouwers, Vivianne G. A. A.;Karki, Hari S.;Jupe, Florian;Barrett, William;Wu, Chih-Hang;Song, Tianqiao

作者机构：

期刊名称：NATURE PLANTS （ 影响因子：15.793； 五年影响因子：17.349 ）

ISSN： 2055-026X

年卷期： 2021 年 7 卷 2 期

页码：

收录情况： SCI

摘要： Late blight caused by Phytophthora infestans greatly constrains potato production. Many Resistance (R) genes were cloned from wild Solanum species and/or introduced into potato cultivars by breeding. However, individual R genes have been overcome by P. infestans evolution; durable resistance remains elusive. We positionally cloned a new R gene, Rpi-amr1, from Solanum americanum, that encodes an NRC helper-dependent CC-NLR protein. Rpi-amr1 confers resistance in potato to all 19 P. infestans isolates tested. Using association genomics and long-read RenSeq, we defined eight additional Rpi-amr1 alleles from different S. americanum and related species. Despite only similar to 90% identity between Rpi-amr1 proteins, all confer late blight resistance but differentially recognize Avramr1 orthologues and paralogues. We propose that Rpi-amr1 gene family diversity assists detection of diverse paralogues and alleles of the recognized effector, facilitating durable resistance against P. infestans.

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