Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
5.4
4.5
Journals
Plants
Special Issues
Development and Genetic Improvement in Brassica Crops
share announcement

Development and Genetic Improvement in Brassica Crops

A special issue of Plants (ISSN 2223-7747). This special issue belongs to the section "Crop Physiology and Crop Production".

Deadline for manuscript submissions: closed (20 March 2022) | Viewed by 10000

Special Issue Editor

Dr. Cunmin Qu

E-Mail Website
Guest Editor
College of Agronomy and Biotechnology, Southwest University, Chongqing 400715, China
Interests: rapeseed; seedcoat; metabolic; GWAS; QTL mapping; plant biotechnology (RNAi, Gene editing, transgenic); genome and genomics
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Different oil crops, such as soybean, peanut, oilseed, castor, sunflower, and oil palm, are important resources of edible oil for human beings, which provide essential nutrients for the human body. With the increase in population and the improvement of living standards, cultivation and production of these oil crops poses a challenge to the genetic improvement of oil crops. In addition, with the reference genomes of several oil crops released and genetic transformation and gene editing tools readily available, basic and applied research of oil crops has entered a functional genomic era integrating multiple approaches. Therefore, this Special Issue will provide new insights into oil crop development and genetic improvement, including GWAS or QTL mapping, improving fatty acid composition, metabolic engineering, biotechnology, genetic and breeding, genetic evaluation of oil crop germplasm resources, etc.

Dr. Cunmin Qu
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Plants is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • oil crops
  • agronomic traits
  • candidate functional genes
  • genetic improvement
  • genetic engineering
  • plant breeding

Published Papers (5 papers)

Download All Papers
Order results
Result details
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:

Research

12 pages, 1161 KiB  
Article
Deciphering the Genetic Inheritance of Tocopherols in Indian Mustard (Brassica juncea L. Czern and Coss)
by Vijay Kamal Meena, Yashpal Taak, Rajat Chaudhary, Subhash Chand, Manoj Kumar Patel, Vignesh Muthusamy, Sangita Yadav, Navinder Saini, Sujata Vasudev and Devendra Kumar Yadava
Plants 2022, 11(13), 1779; https://doi.org/10.3390/plants11131779 - 05 Jul 2022
Cited by 3 | Viewed by 1756
Abstract
Tocopherol is vital for the nutritional value and stability of Indian mustard (Brassica juncea L. Czern and Coss) oil; nonetheless, the lack of information on genetic control is hampering its improvement. In this study, six populations (P1, P2, [...] Read more.
Tocopherol is vital for the nutritional value and stability of Indian mustard (Brassica juncea L. Czern and Coss) oil; nonetheless, the lack of information on genetic control is hampering its improvement. In this study, six populations (P1, P2, F1, F2, BC1P1, and BC1P2) of RLC3 × NPJ203 were evaluated in a family block design to evaluate the inheritance pattern, gene effects, and various other genetic parameters of tocopherol content (α, γ, and total), using generation mean analysis. The comparison of direct and reciprocal crosses indicated that the tocopherol content was not influenced by maternal inheritance. Negative directional heterosis showed that ATC, GTC, and TTC are governed by recessive genes. Potence ratio and degree of dominance highlighted an over-dominance type of gene interaction for GTC and TTC, whereas ATC was governed by epistatic interactions. Furthermore, the six-parameter model revealed a duplicate gene action for α-tocopherol content. Broad and narrow sense heritability coupled with genetic advances were high. Full article
(This article belongs to the Special Issue Development and Genetic Improvement in Brassica Crops)
►▼ Show Figures

Figure 1

14 pages, 3011 KiB  
Article
BnKAT2 Positively Regulates the Main Inflorescence Length and Silique Number in Brassica napus by Regulating the Auxin and Cytokinin Signaling Pathways
by Dashuang Yuan, Yin Zhang, Zhen Wang, Cunmin Qu, Dongming Zhu, Huafang Wan and Ying Liang
Plants 2022, 11(13), 1679; https://doi.org/10.3390/plants11131679 - 24 Jun 2022
Cited by 4 | Viewed by 1385
Abstract
Brassica napus is the dominant oil crop cultivated in China for its high quality and high yield. The length of the main inflorescence and the number of siliques produced are important traits contributing to rapeseed yield. Therefore, studying genes related to main inflorescence [...] Read more.
Brassica napus is the dominant oil crop cultivated in China for its high quality and high yield. The length of the main inflorescence and the number of siliques produced are important traits contributing to rapeseed yield. Therefore, studying genes related to main inflorescence and silique number is beneficial to increase rapeseed yield. Herein, we focused on the effects of BnKAT2 on the main inflorescence length and silique number in B. napus. We explored the mechanism of BnKAT2 increasing the effective length of main inflorescence and the number of siliques through bioinformatics analysis, transgenic technology, and transcriptome sequencing analysis. The full BnKAT2(BnaA01g09060D) sequence is 3674 bp, while its open reading frame is 2055 bp, and the encoded protein comprises 684 amino acids. BnKAT2 is predicted to possess two structural domains, namely KHA and CNMP-binding domains. The overexpression of BnKAT2 effectively increased the length of the main inflorescence and the number of siliques in B. napus, as well as in transgenic Arabidopsis thaliana. The type-A Arabidopsis response regulator (A-ARR), negative regulators of the cytokinin, are downregulated in the BnKAT2-overexpressing lines. The Aux/IAA, key genes in auxin signaling pathways, are downregulated in the BnKAT2-overexpressing lines. These results indicate that BnKAT2 might regulate the effective length of the main inflorescence and the number of siliques through the auxin and cytokinin signaling pathways. Our study provides a new potential function gene responsible for improvement of main inflorescence length and silique number, as well as a candidate gene for developing markers used in MAS (marker-assisted selection) breeding to improve rapeseed yield. Full article
(This article belongs to the Special Issue Development and Genetic Improvement in Brassica Crops)
►▼ Show Figures

Figure 1

12 pages, 1843 KiB  
Article
Genome-Wide Association Study of Phenylalanine Derived Glucosinolates in Brassica rapa
by Guoxia Shang, Huiyan Zhao, Linhui Tong, Nengwen Yin, Ran Hu, Haiyan Jiang, Farah Kamal, Zhi Zhao, Liang Xu, Kun Lu, Jiana Li, Cunmin Qu and Dezhi Du
Plants 2022, 11(9), 1274; https://doi.org/10.3390/plants11091274 - 09 May 2022
Cited by 3 | Viewed by 2068
Abstract
Glucosinolates (GSLs) are sulfur-containing bioactive compounds usually present in Brassicaceae plants and are usually responsible for a pungent flavor and reduction of the nutritional values of seeds. Therefore, breeding rapeseed varieties with low GSL levels is an important breeding objective. Most GSLs in [...] Read more.
Glucosinolates (GSLs) are sulfur-containing bioactive compounds usually present in Brassicaceae plants and are usually responsible for a pungent flavor and reduction of the nutritional values of seeds. Therefore, breeding rapeseed varieties with low GSL levels is an important breeding objective. Most GSLs in Brassica rapa are derived from methionine or tryptophan, but two are derived from phenylalanine, one directly (benzylGSL) and one after a round of chain elongation (phenethylGSL). In the present study, two phenylalanine (Phe)-derived GSLs (benzylGSL and phenethylGSL) were identified and quantified in seeds by liquid chromatography and mass spectrometry (LC-MS) analysis. Levels of benzylGSL were low but differed among investigated low and high GSL genotypes. Levels of phenethylGSL (also known as 2-phenylethylGSL) were high but did not differ among GSL genotypes. Subsequently, a genome-wide association study (GWAS) was conducted using 159 B. rapa accessions to demarcate candidate regions underlying 43 and 59 QTNs associated with benzylGSL and phenethylGSL that were distributed on 10 chromosomes and 9 scaffolds, explaining 0.56% to 70.86% of phenotypic variations, respectively. Furthermore, we find that 15 and 18 known or novel candidate genes were identified for the biosynthesis of benzylGSL and phenethylGSL, including known regulators of GSL biosynthesis, such as BrMYB34, BrMYB51, BrMYB28, BrMYB29 and BrMYB122, and novel regulators or structural genes, such as BrMYB44/BrMYB77 and BrMYB60 for benzylGSL and BrCYP79B2 for phenethylGSL. Finally, we investigate the expression profiles of the biosynthetic genes for two Phe-derived GSLs by transcriptomic analysis. Our findings provide new insight into the complex machinery of Phe-derived GSLs in seeds of B. rapa and help to improve the quality of Brassicaceae plant breeding. Full article
(This article belongs to the Special Issue Development and Genetic Improvement in Brassica Crops)
►▼ Show Figures

Figure 1

18 pages, 7708 KiB  
Article
Genome-Wide Identification of the TIFY Gene Family in Brassiceae and Its Potential Association with Heavy Metal Stress in Rapeseed
by Fujun Sun, Zhiyou Chen, Qianwei Zhang, Yuanyuan Wan, Ran Hu, Shulin Shen, Si Chen, Nengwen Yin, Yunshan Tang, Ying Liang, Kun Lu, Cunmin Qu, Wei Hua and Jiana Li
Plants 2022, 11(5), 667; https://doi.org/10.3390/plants11050667 - 28 Feb 2022
Cited by 6 | Viewed by 2013
Abstract
The TIFY gene family plays important roles in various plant biological processes and responses to stress and hormones. The chromosome-level genome of the Brassiceae species has been released, but knowledge concerning the TIFY family is lacking in the Brassiceae species. The current study [...] Read more.
The TIFY gene family plays important roles in various plant biological processes and responses to stress and hormones. The chromosome-level genome of the Brassiceae species has been released, but knowledge concerning the TIFY family is lacking in the Brassiceae species. The current study performed a bioinformatics analysis on the TIFY family comparing three diploid (B. rapa, B. nigra, and B. oleracea) and two derived allotetraploid species (B. juncea, and B. napus). A total of 237 putative TIFY proteins were identified from five Brassiceae species, and classified into ten subfamilies (six JAZ types, one PPD type, two TIFY types, and one ZML type) based on their phylogenetic relationships with TIFY proteins in A. thaliana and Brassiceae species. Duplication and synteny analysis revealed that segmental and tandem duplications led to the expansion of the TIFY family genes during the process of polyploidization, and most of these TIFY family genes (TIFYs) were subjected to purifying selection after duplication based on Ka/Ks values. The spatial and temporal expression patterns indicated that different groups of BnaTIFYs have distinct spatiotemporal expression patterns under normal conditions and heavy metal stresses. Most of the JAZIII subfamily members were highest in all tissues, but JAZ subfamily members were strongly induced by heavy metal stresses. BnaTIFY34, BnaTIFY59, BnaTIFY21 and BnaTIFY68 were significantly upregulated mostly under As3+ and Cd2+ treatment, indicating that they could be actively induced by heavy metal stress. Our results may contribute to further exploration of TIFYs, and provided valuable information for further studies of TIFYs in plant tolerance to heavy metal stress. Full article
(This article belongs to the Special Issue Development and Genetic Improvement in Brassica Crops)
►▼ Show Figures

Graphical abstract

18 pages, 5359 KiB  
Article
Characterization of the Transcriptome and Proteome of Brassica napus Reveals the Close Relation between DW871 Dwarfing Phenotype and Stalk Tissue
by Jing Luo, Sha Huang, Min Wang, Ruimao Zhang, Degang Zhao, Yuanyu Yang, Fang Wang, Zhuanzhuan Wang, Rong Tang, Lulu Wang, Huagui Xiao, Bin Yang and Chao Li
Plants 2022, 11(3), 413; https://doi.org/10.3390/plants11030413 - 02 Feb 2022
Cited by 3 | Viewed by 1820
Abstract
Rapeseed is a significant oil-bearing cash crop. As a hybrid crop, Brassica napus L. produces a high yield, but it also has drawbacks such as a tall stalk, easy lodging, and is not suitable for mechanized production. To address these concerns, we created [...] Read more.
Rapeseed is a significant oil-bearing cash crop. As a hybrid crop, Brassica napus L. produces a high yield, but it also has drawbacks such as a tall stalk, easy lodging, and is not suitable for mechanized production. To address these concerns, we created the DW871 rapeseed dwarf variety, which has a high yield, high oil content, and is suitable for mechanized production. To fully comprehend the dwarfing mechanism of DW871 and provide a theoretical foundation for future applications of the variety, we used transcriptome and proteome sequencing to identify genes and proteins associated with the dwarfing phenotype, using homologous high-stalk material HW871 as a control. By RNA-seq and iTRAQ, we discovered 8665 DEGs and 50 DAPs. Comprehensive transcription and translation level analysis revealed 25 correlations, 23 of which have the same expression trend, involving monolignin synthesis, pectin-lignin assembly, lignification, glucose modification, cell wall composition and architecture, cell morphology, vascular bundle development, and stalk tissue composition and architecture. As a result of these results, we can formulate a hypothesis about the DW871 dwarfing phenotype: plant hormone signal transduction, such as IAA and BRs, is linked to the formation of dwarf phenotypes, and metabolic pathways related to lignin synthesis, such as phenylpropane biosynthesis, also play a role. Our works will contribute to a better understanding of the genes and proteins involved in the rapeseed dwarf phenotype, and we will propose new insights into the dwarfing mechanism of Brassica napus L. Full article
(This article belongs to the Special Issue Development and Genetic Improvement in Brassica Crops)
►▼ Show Figures

Figure 1

Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying articles 1-5
Back to TopTop