AI Article Synopsis
- This study investigates the genetic control of pod shatter resistance and its relationship with pod length in Brassica carinata species, focusing on a mapping population created from two Ethiopian parent lines over three years.
- Researchers identified nine genomic regions associated with pod shatter resistance, notably a significant QTL on chromosome B07 that explained a large portion of genetic variance in rupture energy.
- The findings indicate that while pod length does not affect pod shatter resistance, favorable genetic traits can be utilized to enhance seed yield in shatter-prone Brassica cultivars.
Article Abstract
Background: Understanding the genetic control of pod shatter resistance and its association with pod length is crucial for breeding improved pod shatter resistance and reducing pre-harvest yield losses due to extensive shattering in cultivars of Brassica species. In this study, we evaluated a doubled haploid (DH) mapping population derived from an F cross between two Brassica carinata parental lines Y-BcDH64 and W-BcDH76 (YWDH), originating from Ethiopia and determined genetic bases of variation in pod length and pod shatter resistance, measured as rupture energy. The YWDH population, its parental lines and 11 controls were grown across three years for genetic analysis.
Results: By using three quantitative trait loci (QTL) analytic approaches, we identified nine genomic regions on B02, B03, B04, B06, B07 and C01 chromosomes for rupture energy that were repeatedly detected across three growing environments. One of the QTL on chromosome B07, flanked with DArTseq markers 100,046,735 and 100,022,658, accounted for up to 27.6% of genetic variance in rupture energy. We observed no relationship between pod length and rupture energy, suggesting that pod length does not contribute to variation in pod shatter resistance. Comparative mapping identified six candidate genes; SHP1 on B6, FUL and MAN on chromosomes B07, IND and NST2 on B08, and MAN7 on C07 that mapped within 0.2 Mb from the QTL for rupture energy.
Conclusion: The results suggest that favourable alleles of stable QTL on B06, B07, B08 and C01 for pod shatter resistance can be incorporated into the shatter-prone B. carinata and its related species to improve final seed yield at harvest.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11441008 | PMC |
| http://dx.doi.org/10.1186/s12870-024-05596-2 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Two mutations in one QTL confer shattering resistance.
Trends Plant Sci
December 2024
Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India. Electronic address:
Resistance to shattering is essential for seed production in domesticated crops. In a recent study, Li et al. found that this trait arose in soybean through mutations in two genes, Shattering1 (Sh1) and Pod dehiscence1 (Pdh1), within a single quantitative trait locus (QTL).
View Article and Find Full Text PDFA Model for the Gene Regulatory Network Along the Arabidopsis Fruit Medio-Lateral Axis: Rewiring the Pod Shatter Process.
Plants (Basel)
October 2024
Instituto de Biología Molecular y Celular de Plantas, Consejo Superior de Investigaciones Científicas-Universidad Politécnica de Valencia, 46022 Valencia, Spain.
Different convergent evolutionary strategies adopted by angiosperm fruits lead to diverse functional seed dispersal units. Dry dehiscent fruits are a common type of fruit, characterized by their lack of fleshy pericarp and the release of seeds at maturity through openings (dehiscence zones, DZs) in their structure. In previous decades, a set of core players in DZ formation have been intensively characterized in Arabidopsis and integrated in a gene regulatory network (GRN) that explains the morphogenesis of these tissues.
View Article and Find Full Text PDFResearch progress and mitigation strategies for pod shattering resistance in rapeseed.
PeerJ
October 2024
College of Agronomy, Sichuan Agricultural University, Chengdu, Chengdu, China.
Article Synopsis
- Mature rapeseed pods often shatter during harvest, causing significant yield losses that can range from 8-12% up to 50% under adverse conditions, highlighting the need for better resistance strategies.
- The research emphasizes the complexity of pod shatter as it is influenced by genetics, environment, agronomic practices, and harvesting techniques, suggesting that future studies should consider these interconnected factors.
- A literature review identified strategies to improve rapeseed yields through breeding more shatter-resistant varieties, optimizing cultivation practices, and utilizing advanced technologies in mechanized harvesting.
Identification of quantitative trait loci and candidate genes for pod shatter resistance in Brassica carinata.
BMC Plant Biol
September 2024
NSW Department of Primary Industries and Regional Development, Wagga Wagga Agricultural Institute, Wagga Wagga, NSW, 2650, Australia.
Article Synopsis
- This study investigates the genetic control of pod shatter resistance and its relationship with pod length in Brassica carinata species, focusing on a mapping population created from two Ethiopian parent lines over three years.
- Researchers identified nine genomic regions associated with pod shatter resistance, notably a significant QTL on chromosome B07 that explained a large portion of genetic variance in rupture energy.
- The findings indicate that while pod length does not affect pod shatter resistance, favorable genetic traits can be utilized to enhance seed yield in shatter-prone Brassica cultivars.
Developing genomic tools to assist turnip rape [ (L.) subsp. (DC.) Metzg.] breeding.
Front Genet
August 2024
Department of Plant Breeding, Swedish University of Agricultural Sciences, Alnarp, Sweden.
Introduction: Turnip rape is recognized as an oilseed crop contributing to environmentally sustainable agriculture via integration into crop rotation systems. Despite its various advantages, the crop's cultivation has declined globally due to a relatively low productivity, giving way to other crops. The use of genomic tools could enhance the breeding process and accelerate genetic gains.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!