Hericium Erinaceus HE015 Strain Breeding for Yield and Contaminant Resistance
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Solution Overview
Problem
Hericium erinaceus strains face issues of low genetic diversity, low yield, and susceptibility to living contaminants, leading to economic losses in cultivation and inadequate quality in existing varieties, failing to meet the demand for high-quality products in the deep processing industry.
Innovation Solution
A new Hericium erinaceus strain HE015 is developed through systematic breeding from wild samples, characterized by dense mycelia, fast growth, high yield, and resistance to living contaminants, along with a specific molecular marker for identification and extraction methods to enhance quality control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional mutation breeding and crossbreeding methods are used to develop new Hericium erinaceus varieties, then new varieties can be obtained, but the genetic background remains similar and the varieties show little improvement in quality and yield
Solution Approach 1:
The patent introduces wild Hericium erinaceus strains as an intermediary source of novel genetic material. These wild strains, collected from natural habitats, serve as a bridge between traditional cultivation and genetic improvement, providing diverse genetic backgrounds that differ significantly from conventional cultivated varieties. This intermediary approach enables introgression of wild genetic traits into cultivated strains through hybridization, thereby achieving both genetic diversity and improved productivity.
Solution Approach 2:
The patent transitions from traditional one-dimensional breeding (mutation and crossbreeding within cultivated varieties) to a multi-dimensional approach by incorporating wild strains from diverse geographic sources. This adds a new dimension of genetic variation, allowing breeders to access novel alleles and genetic combinations that were previously unavailable, thus simultaneously improving genetic diversity and agricultural traits.
2Productivity
If breeding focuses on high yield characteristics, then yield increases, but quality deteriorates; conversely, if breeding focuses on fine quality, then quality improves, but yield decreases
Solution Approach 1:
The patent utilizes parameter changes in the genetic composition by introducing wild strain genes that carry different allele combinations. These genetic parameter changes result in novel phenotypic expressions where both yield and quality traits are improved simultaneously, breaking the traditional trade-off relationship. The wild genetic material provides new genetic variants that allow optimization of multiple traits without the conventional compromise.
3Productivity
If conventional cultivated strains are used for scale production, then production can be maintained, but susceptibility to living contaminants increases causing economic losses
Solution Approach 1:
The patent segments the genetic background into cultivated and wild components, creating hybrid strains that combine the production stability of cultivated varieties with the contaminant resistance of wild strains. This genetic segmentation allows the offspring to inherit beneficial traits from both parents, achieving both production stability and enhanced reliability against living contaminants.
4Productivity
If existing Hericium erinaceus varieties are cultivated, then production can proceed, but the varieties fail to meet the increasing demand for high-quality products in deep processing industry
Solution Approach 1:
The patent develops hybrid strains with multi-functional characteristics that make them suitable for both traditional cultivation and deep processing applications. The strains exhibit universal adaptability, producing high-quality fruiting bodies with superior nutritional and functional properties that meet the diverse requirements of both fresh market and deep processing industry, thereby expanding the applicability and market value of the cultivated varieties.
Data Source
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AI summary
The present invention discloses a new Hericium erinaceus strain HE015, and a molecular marker and use thereof. According to the present invention, wild fungi are widely collected throughout China and subjected to systematic strain breeding to obtain a new fine-quality Hericium erinaceus strain HE015. The strain HE015 was preserved in Guangdong Microbial Culture Collection Center on May 12, 2022 with an accession number of GDMCC No: 62464. The genetic background of the strain is obviously different from that of the existing Hericium erinaceus species; therefore, the new strain is of important value and significance in supplementing fine-quality cultivated Hericium erinaceus varieties, meeting the market demand and promoting high-quality development of the industry. The present invention further provides a specific molecular marker and a rapid detection method for detecting and identifying the strain HE015. The strain HE015 has advantages such as dense and sturdy mycelia of its mother strain, fast growth of its stock culture, strong living contaminants resistance, high yield and short growth cycle, and meanwhile contains high content of polysaccharide and other active ingredients. Its extract can protect gastric mucosa and improve alcohol-induced gastric mucosal damage. Particularly, its fruiting body extract has a more significant effect. Therefore, the strain of the present invention has a broad prospect of industrialization.