Optimizing Brassica oleracea L. Breeding Through Somatic Hybridization Using Cytoplasmic Male Sterility (CMS) Lines: From Protoplast Isolation to Plantlet Regeneration

Bibliographic Details
Title: Optimizing Brassica oleracea L. Breeding Through Somatic Hybridization Using Cytoplasmic Male Sterility (CMS) Lines: From Protoplast Isolation to Plantlet Regeneration
Authors: Miriam Romero-Muñoz, Margarita Pérez-Jiménez
Source: Plants, Vol 13, Iss 22, p 3247 (2024)
Publisher Information: MDPI AG, 2024.
Publication Year: 2024
Collection: LCC:Botany
Subject Terms: micropropagation, protoplast fusion, gene editing, Brassicaceae breeding, cytoplasmic male sterility, Botany, QK1-989
More Details: The Brassica oleracea L. species embrace important horticultural crops, such as broccoli, cauliflower, and cabbage, which are highly valued for their beneficial nutritional effects. However, the complexity of flower emasculation in these species has forced breeders to adopt biotechnological approaches such as somatic hybridization to ease hybrid seed production. Protoplasts entail a versatile tool in plant biotechnology, supporting breeding strategies that involve genome editing and hybridization. This review discusses the use of somatic hybridization in B. oleracea L. as a biotechnological method for developing fusion products with desirable agronomic traits, particularly cytoplasmic male sterile (CMS) condition. These CMS lines are critical for implementing a cost-effective, efficient, and reliable system for producing F1 hybrids. We present recent studies on CMS systems in B. oleracea L. crops, providing an overview of established models that explain the mechanisms of CMS and fertility restoration. Additionally, we emphasize key insights gained from protoplast fusion applied to B. oleracea L. breeding. Key steps including pre-treatments of donor plants, the main tissues used as sources of parental protoplasts, methods for obtaining somatic hybrids and cybrids, and the importance of establishing a reliable plant regeneration method are discussed. Finally, the review explores the incorporation of genome editing technologies, such as CRISPR-Cas9, to introduce multiple agronomic traits in Brassica species. This combination of advanced biotechnological tools holds significant promise for enhancing B. oleracea breeding programs in the actual climate change context.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 2223-7747
Relation: https://www.mdpi.com/2223-7747/13/22/3247; https://doaj.org/toc/2223-7747
DOI: 10.3390/plants13223247
Access URL: https://doaj.org/article/00d4b6320a63406995f8e6a854c5cd21
Accession Number: edsdoj.00d4b6320a63406995f8e6a854c5cd21
Database: Directory of Open Access Journals
More Details
ISSN:22237747
DOI:10.3390/plants13223247
Published in:Plants
Language:English