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Cai L, Pan R, Zeng Q, Zhang X, Zeng R, Zhu Q. The complete plastome sequence of Momordica cochinchinensis (Cucurbitaceae). Mitochondrial DNA B Resour 2023; 8:329-332. [PMID: 36876141 PMCID: PMC9980024 DOI: 10.1080/23802359.2023.2181649] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023] Open
Abstract
Momordica cochinchinensis (Lour.) Spreng. is an important medicinal plant that is used to treat various diseases in South and Southeast Asia. In this study, the complete plastome of M. cochinchinensis was sequenced and found to exhibit a total length of 158,955 bp, with a large single copy (LSC) region of 87,924 bp and a small single copy (SSC) region of 18,479 bp, as well as with two inverted repeats (IRs) that were both 26,726 bp in length. In total, 129 genes were detected, comprising 86 protein-encoding genes, 8 ribosomal RNA (rRNA) genes, and 35 transfer RNA (tRNA) genes. Furthermore, the inferred phylogenetic tree confirmed that M. cochinchinensis belongs to the genus Momordica in the Cucurbitaceae family. The research results will be used for authenticating M. cochinchinensis plant materials and for analyzing the genetic diversity and phylogenetic relationships in Momordica.
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Affiliation(s)
- Lijuan Cai
- Nanchang Business College, Jiangxi Agricultural University, Gongqing, P. R. China
| | - Rao Pan
- Department of Horticulture, College of Agronomy, Jiangxi Agricultural University, Nanchang, P. R. China
| | - Qun Zeng
- Department of Horticulture, College of Agronomy, Jiangxi Agricultural University, Nanchang, P. R. China
| | - Xiaoyan Zhang
- Department of Horticulture, College of Agronomy, Jiangxi Agricultural University, Nanchang, P. R. China
| | - Rongbin Zeng
- Department of Horticulture, College of Agronomy, Jiangxi Agricultural University, Nanchang, P. R. China
| | - Qianglong Zhu
- Department of Horticulture, College of Agronomy, Jiangxi Agricultural University, Nanchang, P. R. China
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Cadena-Iñiguez J, Avendaño-Arrazate CH, Arévalo-Galarza MDL, Cisneros-Solano VM, Ruiz-Posadas LDM, Aguirre-Medina JF, Watanabe K, Machida-Hirano R, Barrera-Guzmán LA. Varietal Descriptors for the Distinction of Underutilized Varieties of Sechium edule (Jacq) Swartz. PLANTS (BASEL, SWITZERLAND) 2022; 11:3309. [PMID: 36501349 PMCID: PMC9737619 DOI: 10.3390/plants11233309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 11/13/2022] [Accepted: 11/21/2022] [Indexed: 06/17/2023]
Abstract
Sechium edule (Jacq.) Sw. (Cucurbitaceae) is a species native to Mexico and Central America. The collection, characterization, and evaluation of accessions maintained in genebanks is essential for the conservation of this species. However, there are no specific varietal descriptors that differ from those used in a phenetic approach and are adapted to international registration guidelines to help distinguish, improve, cluster, and protect intraspecific variants of common use and those obtained by breeding. Therefore, 65 morphological descriptors (qualitative and quantitative) were evaluated in 133 accessions obtained from Mexico, Guatemala, and Costa Rica located in the National Germplasm Bank of S. edule in Mexico. These characteristics were observed to be phenetically stable for five generations under the same agroclimatic conditions. In addition, an analysis of amplified fragment length polymorphism (AFLP) was applied to 133 samples from a set of 245 accessions. According to the multivariate analysis, 26 of the 65 descriptors evaluated (qualitative and quantitative) enabled differentiation of varieties of S. edule. The AFLP analysis showed a high level of polymorphism and genetic distance between cultivated accessions and their corresponding wild ancestor. The variations in S. edule suggest that the morphological characteristics have differentiated from an essentially derived initial edible variety (ancestral original variety), but unlike other cucurbits, there is no evidence of the ancestral edible for Sechium since the seed is unorthodox and there are no relicts.
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Affiliation(s)
- Jorge Cadena-Iñiguez
- Colegio de Postgraduados, Campus San Luis Potosí, Salinas de Hidalgo, San Luis Potosi 78620, Mexico
- Interdisciplinary Research Group in Sechium edule in Mexico, Texcoco 56160, Mexico
| | - Carlos Hugo Avendaño-Arrazate
- Interdisciplinary Research Group in Sechium edule in Mexico, Texcoco 56160, Mexico
- Instituto Nacional de Investigaciones Forestales Agrícolas y Pecuarias México, Coyoacán, Ciudad de México 04010, Mexico
| | - Ma. de Lourdes Arévalo-Galarza
- Interdisciplinary Research Group in Sechium edule in Mexico, Texcoco 56160, Mexico
- Colegio de Postgraduados Campus Montecillo, Texcoco 56230, Mexico
| | - Víctor Manuel Cisneros-Solano
- Interdisciplinary Research Group in Sechium edule in Mexico, Texcoco 56160, Mexico
- Universidad Autónoma Chapingo, Centro Regional Universitario Oriente, Veracruz 94100, Mexico
| | - Lucero del Mar Ruiz-Posadas
- Interdisciplinary Research Group in Sechium edule in Mexico, Texcoco 56160, Mexico
- Colegio de Postgraduados Campus Montecillo, Texcoco 56230, Mexico
| | - Juan Francisco Aguirre-Medina
- Interdisciplinary Research Group in Sechium edule in Mexico, Texcoco 56160, Mexico
- Facultad de Ciencias Agrícolas, Universidad Autónoma de Chiapas, Huehuetán, Chiapas 30660, Mexico
| | - Kazuo Watanabe
- Tsukuba Plant Innovation Research Center, University of Tsukuba, Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8571, Ibaraki, Japan
| | - Ryoko Machida-Hirano
- Genetic Resources Center, National Agriculture and Food Research Organization, 2-1-2 Kannondai, Tsukuba 305-8602, Ibaraki, Japan
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Su L, Cheng S, Liu Y, Xie Y, He Z, Jia M, Zhou X, Zhang R, Li C. Transcriptome and Metabolome Analysis Provide New Insights into the Process of Tuberization of Sechium edule Roots. Int J Mol Sci 2022; 23:ijms23126390. [PMID: 35742832 PMCID: PMC9224348 DOI: 10.3390/ijms23126390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 05/21/2022] [Accepted: 05/25/2022] [Indexed: 02/04/2023] Open
Abstract
Chayote (Sechium edule) produces edible tubers with high starch content after 1 year of growth but the mechanism of chayote tuberization remains unknown. ‘Tuershao’, a chayote cultivar lacking edible fruits but showing higher tuber yield than traditional chayote cultivars, was used to study tuber formation through integrative analysis of the metabolome and transcriptome profiles at three tuber-growth stages. Starch biosynthesis- and galactose metabolism-related genes and metabolites were significantly upregulated during tuber bulking, whereas genes encoding sugars will eventually be exported transporter (SWEET) and sugar transporter (SUT) were highly expressed during tuber formation. Auxin precursor (indole-3-acetamide) and ethylene precursor, 1-aminocyclopropane-1-carboxylic acid, were upregulated, suggesting that both hormones play pivotal roles in tuber development and maturation. Our data revealed a similar tuber-formation signaling pathway in chayote as in potatoes, including complexes BEL1/KNOX and SP6A/14-3-3/FDL. Down-regulation of the BEL1/KNOX complex and upregulation of 14-3-3 protein implied that these two complexes might have distinct functions in tuber formation. Finally, gene expression and microscopic analysis indicated active cell division during the initial stages of tuber formation. Altogether, the integration of transcriptome and metabolome analyses unraveled an overall molecular network of chayote tuberization that might facilitate its utilization.
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Affiliation(s)
- Lihong Su
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China; (L.S.); (S.C.); (Y.L.); (M.J.); (X.Z.); (R.Z.); (C.L.)
| | - Shaobo Cheng
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China; (L.S.); (S.C.); (Y.L.); (M.J.); (X.Z.); (R.Z.); (C.L.)
| | - Yuhang Liu
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China; (L.S.); (S.C.); (Y.L.); (M.J.); (X.Z.); (R.Z.); (C.L.)
| | - Yongdong Xie
- Institute for Processing and Storage of Agricultural Products, Chengdu Academy of Agricultural and Forest Sciences, Chengdu 611130, China;
| | - Zhongqun He
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China; (L.S.); (S.C.); (Y.L.); (M.J.); (X.Z.); (R.Z.); (C.L.)
- Correspondence:
| | - Mingyue Jia
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China; (L.S.); (S.C.); (Y.L.); (M.J.); (X.Z.); (R.Z.); (C.L.)
| | - Xiaoting Zhou
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China; (L.S.); (S.C.); (Y.L.); (M.J.); (X.Z.); (R.Z.); (C.L.)
| | - Ruijie Zhang
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China; (L.S.); (S.C.); (Y.L.); (M.J.); (X.Z.); (R.Z.); (C.L.)
| | - Chunyan Li
- College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China; (L.S.); (S.C.); (Y.L.); (M.J.); (X.Z.); (R.Z.); (C.L.)
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