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Liang M, Ji T, Li S, Wang X, Cui L, Gao L, Wan H, Ma S, Tian Y. Silencing CsMAP65-2 and CsMAP65-3 in cucumber reduces susceptibility to Meloidogyne incognita. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 219:109356. [PMID: 39637709 DOI: 10.1016/j.plaphy.2024.109356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2024] [Revised: 11/05/2024] [Accepted: 11/26/2024] [Indexed: 12/07/2024]
Abstract
Root knot nematodes (RKNs) induce hypertrophy and cell proliferation within the vascular cylinders of host plants, leading to the formation of giant cells (GCs) that are enlarged, multinucleate cells with high metabolic activity. These GCs are formed through repeated karyokinesis without cytokinesis and are accompanied by significant changes in cytoskeleton organization. In this study, two microtubule-binding protein genes, CsMAP65-2 and CsMAP65-3, are upregulated in cucumber roots upon RKNs infection, specifically at 3, 96, and 120 hpi. GUS expression analysis further confirmed the induction of CsMAP65-2 and CsMAP65-3 in both roots and nematode-induced galls. Silencing CsMAP65-2 or CsMAP65-3 using VIGS technology led to a reduction in gall size and number, as well as a decrease in GCs number (24.98% for CsMAP65-2; 19.48% for CsMAP65-3) and area (6% for CsMAP65-2; 4% for CsMAP65-3), compared to control plants. Furthermore, qRT-PCR analysis revealed upregulation of CsMYC2、CsPR1、CsPAD4, and CsPDF1 in CsMAP65-2 silenced lines and upregulation of CsFRK1 in CsMAP65-3 silenced lines, while CsJAZ1 was downregulated in both silenced lines. These findings suggest that CsMAP65-2 and CsMAP65-3 are critical for GCs development during RKN infection and provide a foundation for breeding nematode-resistant cucumber varieties. This research also offers insights for developing sustainable nematode management strategies in gourd crop cultivation.
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Affiliation(s)
- Meiting Liang
- Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Crops, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Tingting Ji
- Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Crops, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Shihui Li
- Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Crops, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Xingyi Wang
- Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Crops, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Lujing Cui
- Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Crops, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Lihong Gao
- Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Crops, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Hongjian Wan
- Institute of Vegetables and State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China
| | - Si Ma
- Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Crops, College of Horticulture, China Agricultural University, Beijing, 100193, China.
| | - Yongqiang Tian
- Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Crops, College of Horticulture, China Agricultural University, Beijing, 100193, China.
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Jia Y, Chen S, Li M, Ouyang L, Xu J, Han X, Qiu W, Lu Z, Zhuo R, Qiao G. The Potential Role of PeMAP65-18 in Secondary Cell Wall Formation in Moso Bamboo. PLANTS (BASEL, SWITZERLAND) 2024; 13:3000. [PMID: 39519919 PMCID: PMC11548304 DOI: 10.3390/plants13213000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/24/2024] [Revised: 10/24/2024] [Accepted: 10/25/2024] [Indexed: 11/16/2024]
Abstract
Microtubule-associated proteins (MAPs) play a pivotal role in the assembly and stabilization of microtubules, which are essential for plant cell growth, development, and morphogenesis. A class of plant-specific MAPs, MAP65, plays largely unexplored roles in moso bamboo (Phyllostachys edulis). This study identified 19 PeMAP65 genes in moso bamboo, systematically examining their phylogenetic relationships, conserved motifs, gene structures, collinearity, and cis-acting elements. Analysis of gene expression indicated that PeMAP65s exhibit tissue-specific expression patterns. Functional differentiation was investigated among the members of different PeMAP65 subfamilies according to their expression patterns in different development stages of bamboo shoots. The expression of PeMAP65-18 was positively correlated with the expression of genes involved in secondary cell wall (SCW) biosynthesis. Y1H and Dual-LUC assays demonstrated that the transcription of PeMAP65-18 was upregulated by PeMYB46, a key transcription factor of SCW biosynthesis. The result of subcellular localization showed that PeMAP65-18 was located in cortical microtubules. We speculate that PeMAP65-18 may play a crucial role in the SCW deposition of moso bamboo. This comprehensive analysis of the MAP65 family offers novel insights into the roles of PeMAP65s in moso bamboo, particularly in relation to the formation of SCWs.
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Affiliation(s)
- Yuhan Jia
- State Key Laboratory of Tree Genetics and Breeding, Zhejiang Key Laboratory of Forest Genetics and Breeding, Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou 311400, China; (Y.J.); (S.C.); (M.L.); (L.O.); (J.X.); (X.H.); (W.Q.); (Z.L.); (R.Z.)
- College of Landscape Architecture, Nanjing Forestry University, Nanjing 210037, China
| | - Shuxin Chen
- State Key Laboratory of Tree Genetics and Breeding, Zhejiang Key Laboratory of Forest Genetics and Breeding, Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou 311400, China; (Y.J.); (S.C.); (M.L.); (L.O.); (J.X.); (X.H.); (W.Q.); (Z.L.); (R.Z.)
| | - Mengyun Li
- State Key Laboratory of Tree Genetics and Breeding, Zhejiang Key Laboratory of Forest Genetics and Breeding, Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou 311400, China; (Y.J.); (S.C.); (M.L.); (L.O.); (J.X.); (X.H.); (W.Q.); (Z.L.); (R.Z.)
| | - Longfei Ouyang
- State Key Laboratory of Tree Genetics and Breeding, Zhejiang Key Laboratory of Forest Genetics and Breeding, Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou 311400, China; (Y.J.); (S.C.); (M.L.); (L.O.); (J.X.); (X.H.); (W.Q.); (Z.L.); (R.Z.)
| | - Jing Xu
- State Key Laboratory of Tree Genetics and Breeding, Zhejiang Key Laboratory of Forest Genetics and Breeding, Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou 311400, China; (Y.J.); (S.C.); (M.L.); (L.O.); (J.X.); (X.H.); (W.Q.); (Z.L.); (R.Z.)
| | - Xiaojiao Han
- State Key Laboratory of Tree Genetics and Breeding, Zhejiang Key Laboratory of Forest Genetics and Breeding, Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou 311400, China; (Y.J.); (S.C.); (M.L.); (L.O.); (J.X.); (X.H.); (W.Q.); (Z.L.); (R.Z.)
| | - Wenmin Qiu
- State Key Laboratory of Tree Genetics and Breeding, Zhejiang Key Laboratory of Forest Genetics and Breeding, Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou 311400, China; (Y.J.); (S.C.); (M.L.); (L.O.); (J.X.); (X.H.); (W.Q.); (Z.L.); (R.Z.)
| | - Zhuchou Lu
- State Key Laboratory of Tree Genetics and Breeding, Zhejiang Key Laboratory of Forest Genetics and Breeding, Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou 311400, China; (Y.J.); (S.C.); (M.L.); (L.O.); (J.X.); (X.H.); (W.Q.); (Z.L.); (R.Z.)
| | - Renying Zhuo
- State Key Laboratory of Tree Genetics and Breeding, Zhejiang Key Laboratory of Forest Genetics and Breeding, Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou 311400, China; (Y.J.); (S.C.); (M.L.); (L.O.); (J.X.); (X.H.); (W.Q.); (Z.L.); (R.Z.)
| | - Guirong Qiao
- State Key Laboratory of Tree Genetics and Breeding, Zhejiang Key Laboratory of Forest Genetics and Breeding, Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou 311400, China; (Y.J.); (S.C.); (M.L.); (L.O.); (J.X.); (X.H.); (W.Q.); (Z.L.); (R.Z.)
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Liang M, Ji T, Wang X, Wang X, Li S, Gao L, Ma S, Tian Y. Comprehensive analyses of microtubule-associated protein MAP65 family genes in Cucurbitaceae and CsaMAP65s expression profiles in cucumber. J Appl Genet 2023; 64:393-408. [PMID: 37219731 DOI: 10.1007/s13353-023-00761-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 05/03/2023] [Accepted: 05/09/2023] [Indexed: 05/24/2023]
Abstract
MAP65 is a microtubule-binding protein family in plants and plays crucial roles in regulating cell growth and development, intercellular communication, and plant responses to various environmental stresses. However, MAP65s in Cucurbitaceae are still less understood. In this study, a total of 40 MAP65s were identified from six Cucurbitaceae species (Cucumis sativus L., Citrullus lanatus, Cucumis melo L., Cucurbita moschata, Lagenaria siceraria, and Benincasa hispida) and classified into five groups by phylogenetic analysis according to gene structures and conserved domains. A conserved domain (MAP65_ASE1) was found in all MAP65 proteins. In cucumber, we isolated six CsaMAP65s with different expression patterns in tissues including root, stem, leaf, female flower, male flower, and fruit. Subcellular localizations of CsaMAP65s verified that all CsaMAP65s were localized in microtubule and microfilament. Analyses of the promoter regions of CsaMAP65s have screened different cis-acting regulatory elements involved in growth and development and responses to hormone and stresses. In addition, CsaMAP65-5 in leaves was significantly upregulated by salt stress, and this promotion effect was higher in cucumber cultivars with salt tolerant than that without salt tolerant. CsaMAP65-1 in leaves was significantly upregulated by cold stress, and this promotion was higher in cold-tolerant cultivar than intolerant cultivar. With the genome-wide characterization and phylogenetic analysis of Cucurbitaceae MAP65s, and the expression profile of CsaMAP65s in cucumber, this study laid a foundation for further study on MAP65 functions in developmental processes and responses to abiotic stress in Cucurbitaceae species.
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Affiliation(s)
- Meiting Liang
- Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Crops, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Tingting Ji
- Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Crops, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Xueyun Wang
- Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Crops, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Xingyi Wang
- Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Crops, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Shihui Li
- Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Crops, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Lihong Gao
- Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Crops, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Si Ma
- Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Crops, College of Horticulture, China Agricultural University, Beijing, 100193, China.
| | - Yongqiang Tian
- Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Crops, College of Horticulture, China Agricultural University, Beijing, 100193, China.
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