Cruciferous Vegetables: The New Era of Vegetable Improvement

A special issue of Horticulturae (ISSN 2311-7524). This special issue belongs to the section "Vegetable Production Systems".

Deadline for manuscript submissions: closed (31 October 2023) | Viewed by 1938

Special Issue Editors


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Guest Editor
Key Laboratory of Biology and Genetic Improvement of Horticultural Crops, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China
Interests: Brassica oleracea; genetics; marker‑assisted selection; gene editing

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Guest Editor
Tianjin Kernel Vegetable Research Institute, State Key Laboratory of Vegetable Germplasm Innovation, Jinjing Road, Xiqing District, Tianjin 300384, China
Interests: cole vegetables; genomics; genetics; molecular markers
Key Laboratory of Biology and Genetic Improvement of Horticultural Crops, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China
Interests: Brassica oleracea; clubroot resistance; gene mapping; QTL

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Guest Editor
Key Laboratory of Biology and Genetic Improvement of Horticultural Crops, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Ministry of Agriculture, Beijing 100081, China
Interests: vegetable breeding; genetics and genomics; marker‑assisted selection; gene/QTL mapping; distant hybridization
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Special Issue Information

Dear Colleagues,

Cruciferous vegetables comprises of many economically important crops, such as cabbage, broccoli, Chinese cabbage, mustard and radish, widely cultivated in the world.

In recent years, with the progresses in sequencing technologies, bioinformatics and biotechnologies, breeding in Cruciferous vegetables has considerable improved. The available of high-quality genome assemblies, genome resequencing, omics approaches, high-density molecular markers and genome maps has contributed to isolation of genes/QTLs controlling agriculturally important traits, such as root/stem enlargement, leaf shape, nutritional supplements, flowering time, and tolerance to adverse abiotic and biotic stresses. Molecular breeding techniques, including molecular marker-assisted selection and genomic selection genomic selection, enables precise genetic elevation, prediction and selection in plant germplasm and breeding populations, thus significantly reduces the breeding cycle time. In addition, application of advanced biotechnologies, such as CRISPR/Cas genome editing tools, enables oriented improvement of breeding lines. Distant hybridization facilitates the introgression of desirable genes, such as clubroot resistant genes, into a specific cultivated crop from its close relatives. Haploid induction methods, including in vitro microspore culture and in vivo haploid production tools, accelerate the homogeneity of breeding materials.

This Special Issue, " Cruciferous Vegetables: The New Era of Vegetable Improvement", invites contributions on molecular genetics and biotechnologies, such as mapping/isolation of important genes, application of biotechnology tools and molecular evaluation of germplasm, to improve Cruciferous vegetables. All types of articles are welcome, including review, research and opinion articles.

Dr. Fengqing Han
Dr. Xiaoli Zhang
Dr. Yong Wang
Prof. Dr. Yangyong Zhang
Guest Editors

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Keywords

  • cruciferous vegetables
  • genetics
  • genomics
  • marker-assisted breeding
  • gene/QTL mapping
  • genome editing
  • distant hybridization
  • haploid induction
  • germplasm evaluation

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Published Papers (1 paper)

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Research

14 pages, 3668 KiB  
Article
Identification of Loci for Four Important Agronomic Traits in Loose-Curd Cauliflower Based on Genome-Wide Association Studies
by Xiaoli Zhang, Zhenghua Wen, Hanmin Jiang, Guobao Niu, Lili Liu, Xingwei Yao, Deling Sun and Xiaozheng Shan
Horticulturae 2023, 9(9), 970; https://doi.org/10.3390/horticulturae9090970 - 26 Aug 2023
Cited by 1 | Viewed by 1222
Abstract
Cauliflower is a nutritious vegetable with inflorescences that are specialized to form the edible organs called curds. Uncovering key genes underlying important traits is crucial for the genetic improvement of this important crop. However, the genetic basis of many important agronomic traits, including [...] Read more.
Cauliflower is a nutritious vegetable with inflorescences that are specialized to form the edible organs called curds. Uncovering key genes underlying important traits is crucial for the genetic improvement of this important crop. However, the genetic basis of many important agronomic traits, including curd performance and plant architecture in cauliflower, remains unclear. GWASs have proved to be powerful tools to study agronomic traits in many crops. To reveal the genetic basis of four important agronomic traits, namely, the main stem height (MSH), purplish curd (PC), external leaf wing (ELW) and weight of a single curd (WSC), we selected 220 core accessions of loose-curd cauliflower for resequencing, phenotypic investigation and GWAS. The approach revealed significant novel loci. We detected several significant associations: on C02 for MSH and PC, on C06 for ELW and on C01 for WSC. More interestingly, we identified a significant single-peak signal for the weight of a single curd (WSC), an important yield trait, and within this signal interval, we identified the BOB01G136670 gene with five SNPs encoding nonsynonymous mutations in the CDS region; these mutations resulted in two haplotypes with significant differences in curd weight. The weight of a single curd was significantly increased in the varieties with the BOB01G136670 Hap1 allele compared to those with BOB01G136670 Hap2. BOB01G136670 was highly conserved with the homologous genes that encode serine carboxypeptidase and belong to the S10 family in other species, including GS5, which functions as a positive regulator of grain size in rice, wheat and maize. Additionally, BOB01G136670 was highly expressed specifically at the curd enlargement stage, with low or even no expression at all in other tissues and stages, indicating that BOB01G136670 is a plausible candidate gene for WSC. Overall, this study identified genomic loci for four important agronomic traits that are relevant for accelerating biological breeding and the improvement of cauliflower varieties. Full article
(This article belongs to the Special Issue Cruciferous Vegetables: The New Era of Vegetable Improvement)
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