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Bai A, Zhao T, Li Y, Zhang F, Wang H, Shah SHA, Gong L, Liu T, Wang Y, Hou X, Li Y. QTL mapping and candidate gene analysis reveal two major loci regulating green leaf color in non-heading Chinese cabbage. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2024; 137:105. [PMID: 38622387 DOI: 10.1007/s00122-024-04608-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 03/23/2024] [Indexed: 04/17/2024]
Abstract
KEY MESSAGE Two major-effect QTL GlcA07.1 and GlcA09.1 for green leaf color were fine mapped into 170.25 kb and 191.41 kb intervals on chromosomes A07 and A09, respectively, and were validated by transcriptome analysis. Non-heading Chinese cabbage (NHCC) is a leafy vegetable with a wide range of green colors. Understanding the genetic mechanism behind broad spectrum of green may facilitate the breeding of high-quality NHCC. Here, we used F2 and F7:8 recombination inbred line (RIL) population from a cross between Wutacai (dark-green) and Erqing (lime-green) to undertake the genetic analysis and quantitative trait locus (QTL) mapping in NHCC. The genetic investigation of the F2 population revealed that the variation of green leaf color was controlled by two recessive genes. Six pigments associated with green leaf color, including total chlorophyll, chlorophyll a, chlorophyll b, total carotenoids, lutein, and carotene were quantified and applied for QTL mapping in the RIL population. A total of 7 QTL were detected across the whole genome. Among them, two major-effect QTL were mapped on chromosomes A07 (GlcA07.1) and A09 (GlcA09.1) corresponding to two QTL identified in the F2 population. The QTL GlcA07.1 and GlcA09.1 were further fine mapped into 170.25 kb and 191.41 kb genomic regions, respectively. By comparing gene expression level and gene annotation, BraC07g023810 and BraC07g023970 were proposed as the best candidates for GlcA07.1, while BraC09g052220 and BraC09g052270 were suggested for GlcA09.1. Two InDel molecular markers (GlcA07.1-BcGUN4 and GlcA09.1-BcSG1) associated with BraC07gA023810 and BraC09g052220 were developed and could effectively identify leaf color in natural NHCC accessions, suggesting their potential for marker-assisted leaf color selection in NHCC breeding.
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Affiliation(s)
- Aimei Bai
- State Key Laboratory of Crop Genetics and Germplasm Enhancement and Utilization, Engineering Research Center of Germplasm Enhancement and Utilization of Horticultural Crops, Ministry of Education of the P. R. China, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, China
| | - Tianzi Zhao
- State Key Laboratory of Crop Genetics and Germplasm Enhancement and Utilization, Engineering Research Center of Germplasm Enhancement and Utilization of Horticultural Crops, Ministry of Education of the P. R. China, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, China
| | - Yan Li
- State Key Laboratory of Crop Genetics and Germplasm Enhancement and Utilization, Engineering Research Center of Germplasm Enhancement and Utilization of Horticultural Crops, Ministry of Education of the P. R. China, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, China
| | - Feixue Zhang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement and Utilization, Engineering Research Center of Germplasm Enhancement and Utilization of Horticultural Crops, Ministry of Education of the P. R. China, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, China
- Huzhou Academy of Agricultural Sciences, Huzhou, 313000, Zhejiang Province, China
| | - Haibin Wang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement and Utilization, Engineering Research Center of Germplasm Enhancement and Utilization of Horticultural Crops, Ministry of Education of the P. R. China, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, China
| | - Sayyed Hamad Ahmad Shah
- State Key Laboratory of Crop Genetics and Germplasm Enhancement and Utilization, Engineering Research Center of Germplasm Enhancement and Utilization of Horticultural Crops, Ministry of Education of the P. R. China, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, China
| | - Li Gong
- State Key Laboratory of Crop Genetics and Germplasm Enhancement and Utilization, Engineering Research Center of Germplasm Enhancement and Utilization of Horticultural Crops, Ministry of Education of the P. R. China, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, China
| | - Tongkun Liu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement and Utilization, Engineering Research Center of Germplasm Enhancement and Utilization of Horticultural Crops, Ministry of Education of the P. R. China, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, China
| | - Yuhui Wang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement and Utilization, Engineering Research Center of Germplasm Enhancement and Utilization of Horticultural Crops, Ministry of Education of the P. R. China, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, China.
| | - Xilin Hou
- State Key Laboratory of Crop Genetics and Germplasm Enhancement and Utilization, Engineering Research Center of Germplasm Enhancement and Utilization of Horticultural Crops, Ministry of Education of the P. R. China, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, China
| | - Ying Li
- State Key Laboratory of Crop Genetics and Germplasm Enhancement and Utilization, Engineering Research Center of Germplasm Enhancement and Utilization of Horticultural Crops, Ministry of Education of the P. R. China, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, China.
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Li L, Liang Y, Liu Y, Sun Z, Liu Y, Yuan Z, Fu C. Transcriptome analyses reveal photosynthesis-related genes involved in photosynthetic regulation under low temperature stress in Lavandula angustifolia Mill. FRONTIERS IN PLANT SCIENCE 2023; 14:1268666. [PMID: 38107014 PMCID: PMC10722586 DOI: 10.3389/fpls.2023.1268666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Accepted: 11/01/2023] [Indexed: 12/19/2023]
Abstract
In order to reveal the mechanisms of photosynthetic regulation of Lavandula angustifolia Mill. under low temperature stress, photosynthesis-related genes were screened and the molecular mechanism were analyzed for this species growing in Harbin, northeast of China. RNA-seq technique and photosynthetic physiology measurement were performed under 20°C, 10°C, and 0°C in this study. The results showed that the observing modified rectangular hyperbola mode could accurately reflect the light-response processes under low temperature stress and the low temperature reduced the light energy utilization of L. angustifolia. The stomatal conductance decreased with the temperature dropping, which was associated with the up-regulation of LaBAM1s, LaMPK4-1 and LaMMK2. The up-regulation of LaMPK4-1 and LaMMK2 was beneficial for ROS scavenging. The improvement of cold resistance in L. angustifolia was related to the up-regulated expression of LaFBA and LaOMTs and down-regulated expression of LaGAPAs, LaGOX, and LaTKL1s with the temperature decreasing. The up-expression of LaPSY at 10°C than it at 20°C could protect the photosynthetic organs from oxidative damage. Moreover, the photosynthetic rates at 10°C and 0°C were close to the measured values, which was related to the interactions of RCA with SBPase and Rubisco with SBPase. These findings could provide a theoretical reference for further exploring the cold tolerance mechanism of L. angustifolia, as an important aromatic plant resource, and promoting its cultivation and distribution in the northeast of China.
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Affiliation(s)
- Ling Li
- Key Laboratory of Aquatic Biodiversity Research in Hei Longjiang Province, Harbin Normal University, Harbin, China
- Heilongjiang Provincial Key Laboratory of Plant Biology in Ordinary Colleges and Universities, Harbin Normal University, Harbin, China
| | - Yuchen Liang
- Key Laboratory of Aquatic Biodiversity Research in Hei Longjiang Province, Harbin Normal University, Harbin, China
- Heilongjiang Provincial Key Laboratory of Plant Biology in Ordinary Colleges and Universities, Harbin Normal University, Harbin, China
| | - Yinan Liu
- Key Laboratory of Aquatic Biodiversity Research in Hei Longjiang Province, Harbin Normal University, Harbin, China
- Heilongjiang Provincial Key Laboratory of Plant Biology in Ordinary Colleges and Universities, Harbin Normal University, Harbin, China
| | - Zeyi Sun
- Heilongjiang Provincial Key Laboratory of Plant Biology in Ordinary Colleges and Universities, Harbin Normal University, Harbin, China
| | - Yuning Liu
- College of Science and Technology, Harbin Normal University, Harbin, China
| | - Zening Yuan
- Key Laboratory of Aquatic Biodiversity Research in Hei Longjiang Province, Harbin Normal University, Harbin, China
- Heilongjiang Provincial Key Laboratory of Plant Biology in Ordinary Colleges and Universities, Harbin Normal University, Harbin, China
| | - Chang Fu
- College of Science and Technology, Harbin Normal University, Harbin, China
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