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Steinbrenner AD, Muñoz-Amatriaín M, Chaparro AF, Aguilar-Venegas JM, Lo S, Okuda S, Glauser G, Dongiovanni J, Shi D, Hall M, Crubaugh D, Holton N, Zipfel C, Abagyan R, Turlings TCJ, Close TJ, Huffaker A, Schmelz EA. A receptor-like protein mediates plant immune responses to herbivore-associated molecular patterns. Proc Natl Acad Sci U S A 2020; 117:31510-31518. [PMID: 33229576 PMCID: PMC7733821 DOI: 10.1073/pnas.2018415117] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Herbivory is fundamental to the regulation of both global food webs and the extent of agricultural crop losses. Induced plant responses to herbivores promote resistance and often involve the perception of specific herbivore-associated molecular patterns (HAMPs); however, precisely defined receptors and elicitors associated with herbivore recognition remain elusive. Here, we show that a receptor confers signaling and defense outputs in response to a defined HAMP common in caterpillar oral secretions (OS). Staple food crops, including cowpea (Vigna unguiculata) and common bean (Phaseolus vulgaris), specifically respond to OS via recognition of proteolytic fragments of chloroplastic ATP synthase, termed inceptins. Using forward-genetic mapping of inceptin-induced plant responses, we identified a corresponding leucine-rich repeat receptor, termed INR, specific to select legume species and sufficient to confer inceptin-induced responses and enhanced defense against armyworms (Spodoptera exigua) in tobacco. Our results support the role of plant immune receptors in the perception of chewing herbivores and defense.
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Affiliation(s)
- Adam D Steinbrenner
- Section of Cell and Developmental Biology, Division of Biological Sciences, University of California San Diego, La Jolla, CA 92093;
- Department of Biology, University of Washington, Seattle, WA 98195
| | - Maria Muñoz-Amatriaín
- Department of Botany and Plant Sciences, University of California, Riverside, CA 92521
- Department of Soil and Crop Sciences, Colorado State University, Fort Collins, CO 80523
| | | | - Jessica Montserrat Aguilar-Venegas
- Section of Cell and Developmental Biology, Division of Biological Sciences, University of California San Diego, La Jolla, CA 92093
- Laboratory of AgriGenomic Sciences, Escuela Nacional de Estudios Superiores Unidad Leon, Universidad Nacional Autonoma de Mexico, 37684 Leon, Mexico
| | - Sassoum Lo
- Department of Botany and Plant Sciences, University of California, Riverside, CA 92521
| | - Satohiro Okuda
- Department for Botany and Plant Biology, University of Geneva, CH-1211 Geneva, Switzerland
| | - Gaetan Glauser
- Institute of Biology, University of Neuchâtel, 2000 Neuchâtel, Switzerland
| | - Julien Dongiovanni
- Institute of Biology, University of Neuchâtel, 2000 Neuchâtel, Switzerland
| | - Da Shi
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, CA 92093
| | - Marlo Hall
- Section of Cell and Developmental Biology, Division of Biological Sciences, University of California San Diego, La Jolla, CA 92093
| | - Daniel Crubaugh
- Section of Cell and Developmental Biology, Division of Biological Sciences, University of California San Diego, La Jolla, CA 92093
| | - Nicholas Holton
- The Sainsbury Laboratory, University of East Anglia, NR4 7UH Norwich, United Kingdom
| | - Cyril Zipfel
- The Sainsbury Laboratory, University of East Anglia, NR4 7UH Norwich, United Kingdom
- Department of Plant and Microbial Biology, Zürich-Basel Plant Science Center, University of Zürich, CH-8008 Zürich, Switzerland
| | - Ruben Abagyan
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, CA 92093
| | - Ted C J Turlings
- Institute of Biology, University of Neuchâtel, 2000 Neuchâtel, Switzerland
| | - Timothy J Close
- Department of Botany and Plant Sciences, University of California, Riverside, CA 92521
| | - Alisa Huffaker
- Section of Cell and Developmental Biology, Division of Biological Sciences, University of California San Diego, La Jolla, CA 92093
| | - Eric A Schmelz
- Section of Cell and Developmental Biology, Division of Biological Sciences, University of California San Diego, La Jolla, CA 92093;
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Li G, Wu X, Hu Y, Muñoz-Amatriaín M, Luo J, Zhou W, Wang B, Wang Y, Wu X, Huang L, Lu Z, Xu P. Orphan genes are involved in drought adaptations and ecoclimatic-oriented selections in domesticated cowpea. J Exp Bot 2019; 70:3101-3110. [PMID: 30949664 DOI: 10.1093/jxb/erz145] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Accepted: 03/20/2019] [Indexed: 05/19/2023]
Abstract
Orphan genes (OGs) are genes that are restricted to a single species or a particular taxonomic group. To date, little is known about the functions of OGs in domesticated crops. Here, we report our findings on the relationships between OGs and environmental adaptation in cowpea (Vigna unguiculata). We identified 578 expressed OGs, of which 73.2% were predicted to be non-coding. Transcriptomic analyses revealed a high rate of OGs that were drought inducible in roots when compared with conserved genes. Co-expression analysis further revealed the possible involvement of OGs in stress response pathways. Overexpression of UP12_8740, a drought-inducible OG, conferred enhanced tolerance to osmotic stresses and soil drought. By combining Capture-Seq and fluorescence-based Kompetitive allele-specific PCR (KASP), we efficiently genotyped single nucleotide polymorphisms (SNPs) on OGs across a 223 accession cowpea germplasm collection. Population genomic parameters, including polymorphism information content (PIC), expected heterozygosity (He), nucleotide diversity (π), and Tajima's D statistics, that were calculated based on these SNPs, showed distinct signatures between the grain- and vegetable-type subpopulations of cowpea. This study reinforces the idea that OGs are a valuable resource for identifying new genes related to species-specific environmental adaptations and fosters new insights that artificial selection on OGs might have contributed to balancing the adaptive and agronomic traits in domesticated crops in various ecoclimatic conditions.
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Affiliation(s)
- Guojing Li
- Institute of Vegetables, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
- State Key Lab Breeding Base for Sustainable Control of Plant Pest and Disease, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Xinyi Wu
- Institute of Vegetables, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Yaowen Hu
- Institute of Vegetables, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Maria Muñoz-Amatriaín
- Department of Botany and Plant Sciences, University of California Riverside, Riverside, CA, USA
| | - Jie Luo
- Central Laboratory of Zhejiang Academy of Agricultural Sciences, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Wen Zhou
- Institute of Vegetables, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Baogen Wang
- Institute of Vegetables, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Ying Wang
- Institute of Vegetables, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Xiaohua Wu
- Institute of Vegetables, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Lijuan Huang
- Institute of Vegetables, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
- College of Horticulture, Northwest Agriculture and Forestry University, Yangling, China
| | - Zhongfu Lu
- Institute of Vegetables, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Pei Xu
- Institute of Vegetables, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
- State Key Lab Breeding Base for Sustainable Control of Plant Pest and Disease, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
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Ndeve AD, Santos JRP, Matthews WC, Huynh BL, Guo YN, Lo S, Muñoz-Amatriaín M, Roberts PA. A Novel Root-Knot Nematode Resistance QTL on Chromosome Vu01 in Cowpea. G3 (Bethesda) 2019; 9:1199-1209. [PMID: 30819821 PMCID: PMC6469422 DOI: 10.1534/g3.118.200881] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Accepted: 02/13/2019] [Indexed: 11/18/2022]
Abstract
The root-knot nematode (RKN) species Meloidogyne incognita and M. javanica cause substantial root system damage and suppress yield of susceptible cowpea cultivars. The narrow-based genetic resistance conferred by the Rk gene, present in some commercial cultivars, is not effective against Rk-virulent populations found in several cowpea production areas. The dynamics of virulence within RKN populations require a broadening of the genetic base of resistance in elite cowpea cultivars. As part of this goal, F1 and F2 populations from the cross CB46-Null (susceptible) x FN-2-9-04 (resistant) were phenotyped for M. javanica induced root-galling (RG) and egg-mass production (EM) in controlled growth chamber and greenhouse infection assays. In addition, F[Formula: see text] families of the same cross were phenotyped for RG on field sites infested with Rk-avirulent M. incognita and M. javanica The response of F1 to RG and EM indicated that resistance to RKN in FN-2-9-04 is partially dominant, as supported by the degree of dominance in the F2 and F[Formula: see text] populations. Two QTL associated with both RG and EM resistance were detected on chromosomes Vu01 and Vu04. The QTL on Vu01 was most effective against aggressive M. javanica, whereas both QTL were effective against avirulent M. incognita Allelism tests with CB46 x FN-2-9-04 progeny indicated that these parents share the same RKN resistance locus on Vu04, but the strong, broad-based resistance in FN-2-9-04 is conferred by the additive effect of the novel resistance QTL on Vu01. This novel resistance in FN-2-9-04 is an important resource for broadening RKN resistance in elite cowpea cultivars.
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Affiliation(s)
| | - Jansen R P Santos
- Deptartment of Nematology
- Departamento de Fitopatologia, Universidade de Brasilia, Brasilia, DF, 70910-900 Brazil
| | | | | | - Yi-Ning Guo
- Department of Botany and Plant Sciences, University of California, Riverside, CA 92521
| | - Sassoum Lo
- Department of Botany and Plant Sciences, University of California, Riverside, CA 92521
| | - Maria Muñoz-Amatriaín
- Department of Botany and Plant Sciences, University of California, Riverside, CA 92521
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Muñoz-Amatriaín M, Svensson JT, Castillo AM, Close TJ, Vallés MP. Microspore embryogenesis: assignment of genes to embryo formation and green vs. albino plant production. Funct Integr Genomics 2009; 9:311-23. [PMID: 19229567 PMCID: PMC2700865 DOI: 10.1007/s10142-009-0113-3] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2008] [Revised: 01/16/2009] [Accepted: 01/24/2009] [Indexed: 11/30/2022]
Abstract
Plant microspores can be reprogrammed from their normal pollen development to an embryogenic route in a process termed microspore embryogenesis or androgenesis. Stress treatment has a critical role in this process, inducing the dedifferentiation of microspores and conditioning the following androgenic response. In this study, we have used three barley doubled haploid lines with similar genetic background but different androgenic response. The Barley1 GeneChip was used for transcriptome comparison of these lines after mannitol stress treatment, allowing the identification of 213 differentially expressed genes. Most of these genes belong to the functional categories "cell rescue, defense, and virulence"; "metabolism"; "transcription"; and "transport". These genes were grouped into clusters according to their expression profiles among lines. A principal component analysis allowed us to associate specific gene expression clusters to phenotypic variables. Genes associated with the ability of microspores to divide and form embryos were mainly involved in changes in the structure and function of membranes, efficient use of available energy sources, and cell fate. Genes related to stress response, transcription and translation regulation, and degradation of pollen-specific proteins were associated with green plant production, while expression of genes related to plastid development was associated with albino plant regeneration.
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Affiliation(s)
- M. Muñoz-Amatriaín
- Departamento de Genética y Producción Vegetal, Estación Experimental Aula Dei, Consejo Superior de Investigaciones Científicas, Apdo 13034, 50080 Zaragoza, Spain
| | - J. T. Svensson
- Department of Botany and Plant Sciences, University of California, Riverside, CA 92521 USA
| | - A. M. Castillo
- Departamento de Genética y Producción Vegetal, Estación Experimental Aula Dei, Consejo Superior de Investigaciones Científicas, Apdo 13034, 50080 Zaragoza, Spain
| | - T. J. Close
- Department of Botany and Plant Sciences, University of California, Riverside, CA 92521 USA
| | - M. P. Vallés
- Departamento de Genética y Producción Vegetal, Estación Experimental Aula Dei, Consejo Superior de Investigaciones Científicas, Apdo 13034, 50080 Zaragoza, Spain
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