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Hou S, Zhao T, Yang Z, Yang D, Li Q, Liang L, Wang G, Ma Q. Molecular cloning and yeast two-hybrid provide new evidence for unique sporophytic self-incompatibility system of Corylus. PLANT BIOLOGY (STUTTGART, GERMANY) 2022; 24:104-116. [PMID: 34724309 DOI: 10.1111/plb.13347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Accepted: 09/19/2021] [Indexed: 06/13/2023]
Abstract
The Corylus genus contains several important nut producing species and exhibits sporophytic self-incompatibility (SSI). However, the underlying molecular mechanisms of SSI in Corylus remain largely unknown. To clarify whether Corylus and Brassica share the same SSI molecular mechanism. We cloned ChaTHL1/2, ChaMLPK, ChaARC1, ChaEX70A1 genes from Ping'ou hybrid hazelnut using RACE techniques and tested the interaction between the ChaARC1 and ChaSRK1/2. We also examined the pistil-pollen interactions using scanning electron microscopy. We found no differences in the stigma surface within 1 h after compatible or incompatible pollination. Compatible pollen tubes penetrated the stigma surface, while incompatible pollen did not penetrate the stigma 4 h after pollination. Bioinformatics analysis revealed that ChaTHL1/2, ChaMLPK, ChaARC1 and ChaEX70A1 have corresponding functional domains. Quantitative real-time PCR (qRT-PCR) analysis showed that ChaTHL1/2, ChaMLPK, ChaARC1 and ChaEX70A1 were not regularly expressed in compatible or incompatible pollination. Furthermore, the expression patterns of ARC1, THL1/2, MLPK and Exo70A1 were quite distinct between Corylus and Brassica. According to yeast two-hybrid assays, ChaSRK1/2 did not interact with ChaARC1, confirming that the SRK-ARC1 signalling pathway implicated in the SSI response of Brassica was not conserved in Corylus. These results further reinforce the conclusion that, notwithstanding the similarity of the genetic basis, the SSI mechanism of Corylus does not conform in many respects with that of Brassica. Our findings could be helpful to better explore the potential mechanism of SSI system in Corylus.
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Affiliation(s)
- S Hou
- State Key Laboratory of Tree Genetics and Breeding, Beijing, China
- Key Laboratory of Tree Breeding and Cultivation of the State Forestry and Grassland Administration/Research Institute of Forestry, Chinese Academy of Forestry, Beijing, China
- Hazelnut Engineering and Technical Research Center of the State Forestry and Grassland Administration, Beijing, China
- National Forestry and Grassland Innovation Alliance on Hazelnut, Beijing, China
| | - T Zhao
- State Key Laboratory of Tree Genetics and Breeding, Beijing, China
- Key Laboratory of Tree Breeding and Cultivation of the State Forestry and Grassland Administration/Research Institute of Forestry, Chinese Academy of Forestry, Beijing, China
- Hazelnut Engineering and Technical Research Center of the State Forestry and Grassland Administration, Beijing, China
- National Forestry and Grassland Innovation Alliance on Hazelnut, Beijing, China
| | - Z Yang
- State Key Laboratory of Tree Genetics and Breeding, Beijing, China
- Key Laboratory of Tree Breeding and Cultivation of the State Forestry and Grassland Administration/Research Institute of Forestry, Chinese Academy of Forestry, Beijing, China
- Hazelnut Engineering and Technical Research Center of the State Forestry and Grassland Administration, Beijing, China
- National Forestry and Grassland Innovation Alliance on Hazelnut, Beijing, China
| | - D Yang
- State Key Laboratory of Tree Genetics and Breeding, Beijing, China
- Key Laboratory of Tree Breeding and Cultivation of the State Forestry and Grassland Administration/Research Institute of Forestry, Chinese Academy of Forestry, Beijing, China
- Hazelnut Engineering and Technical Research Center of the State Forestry and Grassland Administration, Beijing, China
- National Forestry and Grassland Innovation Alliance on Hazelnut, Beijing, China
| | - Q Li
- State Key Laboratory of Tree Genetics and Breeding, Beijing, China
- Key Laboratory of Tree Breeding and Cultivation of the State Forestry and Grassland Administration/Research Institute of Forestry, Chinese Academy of Forestry, Beijing, China
- Hazelnut Engineering and Technical Research Center of the State Forestry and Grassland Administration, Beijing, China
- National Forestry and Grassland Innovation Alliance on Hazelnut, Beijing, China
| | - L Liang
- State Key Laboratory of Tree Genetics and Breeding, Beijing, China
- Key Laboratory of Tree Breeding and Cultivation of the State Forestry and Grassland Administration/Research Institute of Forestry, Chinese Academy of Forestry, Beijing, China
- Hazelnut Engineering and Technical Research Center of the State Forestry and Grassland Administration, Beijing, China
- National Forestry and Grassland Innovation Alliance on Hazelnut, Beijing, China
| | - G Wang
- State Key Laboratory of Tree Genetics and Breeding, Beijing, China
- Key Laboratory of Tree Breeding and Cultivation of the State Forestry and Grassland Administration/Research Institute of Forestry, Chinese Academy of Forestry, Beijing, China
- Hazelnut Engineering and Technical Research Center of the State Forestry and Grassland Administration, Beijing, China
- National Forestry and Grassland Innovation Alliance on Hazelnut, Beijing, China
| | - Q Ma
- State Key Laboratory of Tree Genetics and Breeding, Beijing, China
- Key Laboratory of Tree Breeding and Cultivation of the State Forestry and Grassland Administration/Research Institute of Forestry, Chinese Academy of Forestry, Beijing, China
- Hazelnut Engineering and Technical Research Center of the State Forestry and Grassland Administration, Beijing, China
- National Forestry and Grassland Innovation Alliance on Hazelnut, Beijing, China
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Li B, Zhang X, Liu Z, Wang L, Song L, Liang X, Dou S, Tu J, Shen J, Yi B, Wen J, Fu T, Dai C, Gao C, Wang A, Ma C. Genetic and Molecular Characterization of a Self-Compatible Brassica rapa Line Possessing a New Class II S Haplotype. PLANTS (BASEL, SWITZERLAND) 2021; 10:plants10122815. [PMID: 34961286 PMCID: PMC8709392 DOI: 10.3390/plants10122815] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 12/01/2021] [Accepted: 12/03/2021] [Indexed: 05/20/2023]
Abstract
Most flowering plants have evolved a self-incompatibility (SI) system to maintain genetic diversity by preventing self-pollination. The Brassica species possesses sporophytic self-incompatibility (SSI), which is controlled by the pollen- and stigma-determinant factors SP11/SCR and SRK. However, the mysterious molecular mechanism of SI remains largely unknown. Here, a new class II S haplotype, named BrS-325, was identified in a pak choi line '325', which was responsible for the completely self-compatible phenotype. To obtain the entire S locus sequences, a complete pak choi genome was gained through Nanopore sequencing and de novo assembly, which provided a good reference genome for breeding and molecular research in B. rapa. S locus comparative analysis showed that the closest relatives to BrS-325 was BrS-60, and high sequence polymorphism existed in the S locus. Meanwhile, two duplicated SRKs (BrSRK-325a and BrSRK-325b) were distributed in the BrS-325 locus with opposite transcription directions. BrSRK-325b and BrSCR-325 were expressed normally at the transcriptional level. The multiple sequence alignment of SCRs and SRKs in class II S haplotypes showed that a number of amino acid variations were present in the contact regions (CR II and CR III) of BrSCR-325 and the hypervariable regions (HV I and HV II) of BrSRK-325s, which may influence the binding and interaction between the ligand and the receptor. Thus, these results suggested that amino acid variations in contact sites may lead to the SI destruction of a new class II S haplotype BrS-325 in B. rapa. The complete SC phenotype of '325' showed the potential for practical breeding application value in B. rapa.
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Affiliation(s)
- Bing Li
- National Sub-Center of Rapeseed Improvement in Wuhan, National Key Laboratory of Crop Genetic Improvement, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (B.L.); (L.W.); (X.L.); (S.D.); (J.T.); (J.S.); (B.Y.); (J.W.); (T.F.); (C.D.)
| | - Xueli Zhang
- Wuhan Vegetable Research Institute, Wuhan Academy of Agricultural Sciences, Wuhan 430345, China; (X.Z.); (L.S.)
| | - Zhiquan Liu
- Hunan Vegetable Research Institute, Hunan Academy of Agricultural Science, Changsha 410125, China;
| | - Lulin Wang
- National Sub-Center of Rapeseed Improvement in Wuhan, National Key Laboratory of Crop Genetic Improvement, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (B.L.); (L.W.); (X.L.); (S.D.); (J.T.); (J.S.); (B.Y.); (J.W.); (T.F.); (C.D.)
| | - Liping Song
- Wuhan Vegetable Research Institute, Wuhan Academy of Agricultural Sciences, Wuhan 430345, China; (X.Z.); (L.S.)
| | - Xiaomei Liang
- National Sub-Center of Rapeseed Improvement in Wuhan, National Key Laboratory of Crop Genetic Improvement, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (B.L.); (L.W.); (X.L.); (S.D.); (J.T.); (J.S.); (B.Y.); (J.W.); (T.F.); (C.D.)
| | - Shengwei Dou
- National Sub-Center of Rapeseed Improvement in Wuhan, National Key Laboratory of Crop Genetic Improvement, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (B.L.); (L.W.); (X.L.); (S.D.); (J.T.); (J.S.); (B.Y.); (J.W.); (T.F.); (C.D.)
| | - Jinxing Tu
- National Sub-Center of Rapeseed Improvement in Wuhan, National Key Laboratory of Crop Genetic Improvement, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (B.L.); (L.W.); (X.L.); (S.D.); (J.T.); (J.S.); (B.Y.); (J.W.); (T.F.); (C.D.)
| | - Jinxiong Shen
- National Sub-Center of Rapeseed Improvement in Wuhan, National Key Laboratory of Crop Genetic Improvement, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (B.L.); (L.W.); (X.L.); (S.D.); (J.T.); (J.S.); (B.Y.); (J.W.); (T.F.); (C.D.)
| | - Bin Yi
- National Sub-Center of Rapeseed Improvement in Wuhan, National Key Laboratory of Crop Genetic Improvement, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (B.L.); (L.W.); (X.L.); (S.D.); (J.T.); (J.S.); (B.Y.); (J.W.); (T.F.); (C.D.)
| | - Jing Wen
- National Sub-Center of Rapeseed Improvement in Wuhan, National Key Laboratory of Crop Genetic Improvement, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (B.L.); (L.W.); (X.L.); (S.D.); (J.T.); (J.S.); (B.Y.); (J.W.); (T.F.); (C.D.)
| | - Tingdong Fu
- National Sub-Center of Rapeseed Improvement in Wuhan, National Key Laboratory of Crop Genetic Improvement, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (B.L.); (L.W.); (X.L.); (S.D.); (J.T.); (J.S.); (B.Y.); (J.W.); (T.F.); (C.D.)
| | - Cheng Dai
- National Sub-Center of Rapeseed Improvement in Wuhan, National Key Laboratory of Crop Genetic Improvement, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (B.L.); (L.W.); (X.L.); (S.D.); (J.T.); (J.S.); (B.Y.); (J.W.); (T.F.); (C.D.)
| | - Changbin Gao
- Wuhan Vegetable Research Institute, Wuhan Academy of Agricultural Sciences, Wuhan 430345, China; (X.Z.); (L.S.)
- Correspondence: (C.G.); (A.W.); (C.M.); Tel.: +86-27-8728-18-07 (C.M.)
| | - Aihua Wang
- Wuhan Vegetable Research Institute, Wuhan Academy of Agricultural Sciences, Wuhan 430345, China; (X.Z.); (L.S.)
- Correspondence: (C.G.); (A.W.); (C.M.); Tel.: +86-27-8728-18-07 (C.M.)
| | - Chaozhi Ma
- National Sub-Center of Rapeseed Improvement in Wuhan, National Key Laboratory of Crop Genetic Improvement, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (B.L.); (L.W.); (X.L.); (S.D.); (J.T.); (J.S.); (B.Y.); (J.W.); (T.F.); (C.D.)
- Correspondence: (C.G.); (A.W.); (C.M.); Tel.: +86-27-8728-18-07 (C.M.)
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Kodera C, Just J, Da Rocha M, Larrieu A, Riglet L, Legrand J, Rozier F, Gaude T, Fobis-Loisy I. The molecular signatures of compatible and incompatible pollination in Arabidopsis. BMC Genomics 2021; 22:268. [PMID: 33853522 PMCID: PMC8048354 DOI: 10.1186/s12864-021-07503-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Accepted: 03/02/2021] [Indexed: 12/30/2022] Open
Abstract
Background Fertilization in flowering plants depends on the early contact and acceptance of pollen grains by the receptive papilla cells of the stigma. Deciphering the specific transcriptomic response of both pollen and stigmatic cells during their interaction constitutes an important challenge to better our understanding of this cell recognition event. Results Here we describe a transcriptomic analysis based on single nucleotide polymorphisms (SNPs) present in two Arabidopsis thaliana accessions, one used as female and the other as male. This strategy allowed us to distinguish 80% of transcripts according to their parental origins. We also developed a tool which predicts male/female specific expression for genes without SNP. We report an unanticipated transcriptional activity triggered in stigma upon incompatible pollination and show that following compatible interaction, components of the pattern-triggered immunity (PTI) pathway are induced on the female side. Conclusions Our work unveils the molecular signatures of compatible and incompatible pollinations both at the male and female side. We provide invaluable resource and tools to identify potential new molecular players involved in pollen-stigma interaction. Supplementary Information The online version contains supplementary material available at 10.1186/s12864-021-07503-7.
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Affiliation(s)
- Chie Kodera
- Laboratoire Reproduction et Développement des Plantes, Univ Lyon, ENS de Lyon, UCB Lyon 1, CNRS, INRAE, Inria, F-69342, Lyon, France. .,Present Address: Institut Jean-Pierre Bourgin, INRAE, AgroParisTech, Université Paris-Saclay, 78000, Versailles, France.
| | - Jérémy Just
- Laboratoire Reproduction et Développement des Plantes, Univ Lyon, ENS de Lyon, UCB Lyon 1, CNRS, INRAE, Inria, F-69342, Lyon, France
| | - Martine Da Rocha
- INRAE, Université Côte d'Azur, CNRS, ISA 400 route des Chappes BP 167, F-06903, Sophia Antipolis Cedex, France
| | - Antoine Larrieu
- Laboratoire Reproduction et Développement des Plantes, Univ Lyon, ENS de Lyon, UCB Lyon 1, CNRS, INRAE, Inria, F-69342, Lyon, France.,Present Address: Centre for Plant Sciences, Faculty of Biological Sciences, University of Leeds, Leeds, UK
| | - Lucie Riglet
- Laboratoire Reproduction et Développement des Plantes, Univ Lyon, ENS de Lyon, UCB Lyon 1, CNRS, INRAE, Inria, F-69342, Lyon, France.,Present Address: Sainsbury Laboratory, Cambridge University, Cambridge, CB2 1LR, UK
| | - Jonathan Legrand
- Laboratoire Reproduction et Développement des Plantes, Univ Lyon, ENS de Lyon, UCB Lyon 1, CNRS, INRAE, Inria, F-69342, Lyon, France
| | - Frédérique Rozier
- Laboratoire Reproduction et Développement des Plantes, Univ Lyon, ENS de Lyon, UCB Lyon 1, CNRS, INRAE, Inria, F-69342, Lyon, France
| | - Thierry Gaude
- Laboratoire Reproduction et Développement des Plantes, Univ Lyon, ENS de Lyon, UCB Lyon 1, CNRS, INRAE, Inria, F-69342, Lyon, France
| | - Isabelle Fobis-Loisy
- Laboratoire Reproduction et Développement des Plantes, Univ Lyon, ENS de Lyon, UCB Lyon 1, CNRS, INRAE, Inria, F-69342, Lyon, France.
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Okamoto T, Okamoto M, Hikichi E, Ogawa M, Takada Y, Suzuki G, Takayama S, Watanabe M. Characterization of self-incompatible Brassica napus lines lacking SP11 expression. Genes Genet Syst 2020; 95:111-118. [PMID: 32493878 DOI: 10.1266/ggs.19-00050] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Recognition of self-incompatibility (SI) is regulated by the SRK and SP11 genes in Brassicaceae. Brassica rapa and B. oleracea are self-incompatible, while most cultivated species of B. napus, which arose from hybridization between B. rapa and B. oleracea, are self-compatible. Various studies of the SRK and SP11 genes in self-compatible B. napus have been reported, but details of the mechanism in different B. napus lines are not fully understood. In this study, we confirmed the S haplotypes, SI phenotypes and SP11 expression in 10 representative lines of B. napus, and identified two SI lines (N110 and N343) lacking SP11 expression. In N343 (with BnS1 and BnS6 haplotypes), we confirmed that there is a 3.6-kb insertion in the promoter region of BnSP11-1, and that BnSP11-1 and BnSP11-6 are not expressed, as reported previously (expression of BnSP11-6 is suppressed by the BnS1 haplotype), although this line is self-incompatible. Similarly, in N110, with two novel S haplotypes (BnS8 and BnS9) in addition to BnS6, a 4.3-kb insertion was identified in the promoter region of BnSP11-9, and expression levels of BnSP11-6, BnSP11-8 and BnSP11-9 were all suppressed (BnSP11-6 and BnSP11-8 may be suppressed by BnS8 and BnS9, respectively), although the phenotype was self-incompatible. This observation of an SI phenotype without SP11 expression suggests the existence of unknown factor(s) that induce pollen-stigma incompatibility in B. napus.
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Affiliation(s)
| | | | - Eri Hikichi
- Graduate School of Life Sciences, Tohoku University
| | - Moena Ogawa
- Graduate School of Life Sciences, Tohoku University
| | | | - Go Suzuki
- Division of Natural Science, Osaka Kyouiku University
| | - Seiji Takayama
- Graduate School of Agricultural and Life Sciences, The University of Tokyo
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