Improved Genetic Map and Localization of Quantitative Trait Loci for Quality Traits in <i>Auricularia heimuer</i>
<i>Auricularia heimuer</i> is among China’s most important edible mushrooms and is rich in gum. With the improvement of people’s quality of life, demand is increasing for high-quality and good-tasting food; thus, the texture of <i>A. heimuer</i> is the focus of increasing att...
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| Format: | Article |
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MDPI AG
2023-07-01
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| Series: | Horticulturae |
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| Online Access: | https://www.mdpi.com/2311-7524/9/7/763 |
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| author | Jia Lu Ming Fang Fangjie Yao Lixin Lu Xiaoxu Ma Jingjing Meng Kaisheng Shao |
| author_facet | Jia Lu Ming Fang Fangjie Yao Lixin Lu Xiaoxu Ma Jingjing Meng Kaisheng Shao |
| author_sort | Jia Lu |
| collection | DOAJ |
| description | <i>Auricularia heimuer</i> is among China’s most important edible mushrooms and is rich in gum. With the improvement of people’s quality of life, demand is increasing for high-quality and good-tasting food; thus, the texture of <i>A. heimuer</i> is the focus of increasing attention. In this study, we added extra markers to a previously constructed genetic linkage map to generate a high-density genetic linkage map of <i>A. heimuer</i>, resolved the attributes of substrate quality-related traits, and performed quantitative trait locus (QTL) localization. The original genetic linkage map was improved by adding two new linkage groups, merging seven linkage groups into three linkage groups, and increasing the average linkage distance and total linkage estimated length. We anchored the 142 scaffolds of the genome to the improved genetic linkage map. In total, 15 significant QTLs controlling four quality-related traits were detected. Gumminess and chewiness, and cohesiveness and resilience, were linked. Three genes controlled cohesiveness and resilience; one gene controlled gumminess and chewiness. In conclusion, this study lays the foundation for gene localization and chromosome assembly in <i>A. heimuer</i>, elucidation of the mechanism of substrate quality-related trait formation, and provides a basis for precision breeding of <i>A. heimuer</i>. |
| first_indexed | 2024-03-11T01:01:33Z |
| format | Article |
| id | doaj.art-54cd88900b7d47fbbd0705bd1360246e |
| institution | Directory Open Access Journal |
| issn | 2311-7524 |
| language | English |
| last_indexed | 2024-03-11T01:01:33Z |
| publishDate | 2023-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Horticulturae |
| spelling | doaj.art-54cd88900b7d47fbbd0705bd1360246e2023-11-18T19:35:22ZengMDPI AGHorticulturae2311-75242023-07-019776310.3390/horticulturae9070763Improved Genetic Map and Localization of Quantitative Trait Loci for Quality Traits in <i>Auricularia heimuer</i>Jia Lu0Ming Fang1Fangjie Yao2Lixin Lu3Xiaoxu Ma4Jingjing Meng5Kaisheng Shao6Engineering Research Center of Ministry of Education of China for Food and Medicine, Jilin Agricultural University, Changchun 130118, ChinaCollege of Horticulture, Jilin Agricultural University, Changchun 130118, ChinaEngineering Research Center of Ministry of Education of China for Food and Medicine, Jilin Agricultural University, Changchun 130118, ChinaCollege of Horticulture, Jilin Agricultural University, Changchun 130118, ChinaEngineering Research Center of Ministry of Education of China for Food and Medicine, Jilin Agricultural University, Changchun 130118, ChinaCollege of Horticulture, Jilin Agricultural University, Changchun 130118, ChinaEngineering Research Center of Ministry of Education of China for Food and Medicine, Jilin Agricultural University, Changchun 130118, China<i>Auricularia heimuer</i> is among China’s most important edible mushrooms and is rich in gum. With the improvement of people’s quality of life, demand is increasing for high-quality and good-tasting food; thus, the texture of <i>A. heimuer</i> is the focus of increasing attention. In this study, we added extra markers to a previously constructed genetic linkage map to generate a high-density genetic linkage map of <i>A. heimuer</i>, resolved the attributes of substrate quality-related traits, and performed quantitative trait locus (QTL) localization. The original genetic linkage map was improved by adding two new linkage groups, merging seven linkage groups into three linkage groups, and increasing the average linkage distance and total linkage estimated length. We anchored the 142 scaffolds of the genome to the improved genetic linkage map. In total, 15 significant QTLs controlling four quality-related traits were detected. Gumminess and chewiness, and cohesiveness and resilience, were linked. Three genes controlled cohesiveness and resilience; one gene controlled gumminess and chewiness. In conclusion, this study lays the foundation for gene localization and chromosome assembly in <i>A. heimuer</i>, elucidation of the mechanism of substrate quality-related trait formation, and provides a basis for precision breeding of <i>A. heimuer</i>.https://www.mdpi.com/2311-7524/9/7/763<i>Auricularia heimuer</i>genetic map improvementgenomic anchoringquality traitsQTL |
| spellingShingle | Jia Lu Ming Fang Fangjie Yao Lixin Lu Xiaoxu Ma Jingjing Meng Kaisheng Shao Improved Genetic Map and Localization of Quantitative Trait Loci for Quality Traits in <i>Auricularia heimuer</i> Horticulturae <i>Auricularia heimuer</i> genetic map improvement genomic anchoring quality traits QTL |
| title | Improved Genetic Map and Localization of Quantitative Trait Loci for Quality Traits in <i>Auricularia heimuer</i> |
| title_full | Improved Genetic Map and Localization of Quantitative Trait Loci for Quality Traits in <i>Auricularia heimuer</i> |
| title_fullStr | Improved Genetic Map and Localization of Quantitative Trait Loci for Quality Traits in <i>Auricularia heimuer</i> |
| title_full_unstemmed | Improved Genetic Map and Localization of Quantitative Trait Loci for Quality Traits in <i>Auricularia heimuer</i> |
| title_short | Improved Genetic Map and Localization of Quantitative Trait Loci for Quality Traits in <i>Auricularia heimuer</i> |
| title_sort | improved genetic map and localization of quantitative trait loci for quality traits in i auricularia heimuer i |
| topic | <i>Auricularia heimuer</i> genetic map improvement genomic anchoring quality traits QTL |
| url | https://www.mdpi.com/2311-7524/9/7/763 |
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