The Breeding of Waxy Sorghum Using Traditional Three-Line Method and Marker-Assisted Selection
Sorghum (<i>Sorghum bicolor</i>) exhibits drought resistance and environmental adaptability, making it a crucial cereal crop for semi-arid regions. It has a wide range of uses, including as food, feed, brooms, alcohol production, and bioethanol. In particular, Taiwan imports nearly 50,00...
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| Format: | Article |
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MDPI AG
2023-10-01
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| Series: | Agriculture |
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| Online Access: | https://www.mdpi.com/2077-0472/13/11/2054 |
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| author | Yong-Pei Wu Yu-Chi Chang Su-Chen Kuo Dah-Jing Liao Ting-Yu Shen Hsin-I Kuo Sheng-Wen Wang Yu-Chien Tseng |
| author_facet | Yong-Pei Wu Yu-Chi Chang Su-Chen Kuo Dah-Jing Liao Ting-Yu Shen Hsin-I Kuo Sheng-Wen Wang Yu-Chien Tseng |
| author_sort | Yong-Pei Wu |
| collection | DOAJ |
| description | Sorghum (<i>Sorghum bicolor</i>) exhibits drought resistance and environmental adaptability, making it a crucial cereal crop for semi-arid regions. It has a wide range of uses, including as food, feed, brooms, alcohol production, and bioethanol. In particular, Taiwan imports nearly 50,000 tons of sorghum annually, primarily for the production of sorghum liquor. However, the ideal raw material for high-quality sorghum liquor is waxy sorghum, and not all sorghum varieties imported or promoted in Taiwan are of this waxy type. Consequently, there is a shortage of sufficient waxy sorghum raw materials to meet the demands of the Taiwan market. The occurrence of waxy sorghum (<i>wx</i>) is caused by the mutation of granule-bound starch synthase I (GBBS I), and there are currently several known types of mutants, carrying different <i>wx</i><sup>a</sup>, <i>wx</i><sup>b</sup>, and <i>wx</i><sup>c</sup> waxy alleles. Among them, <i>wx</i><sup>c</sup> is a novel mutation type, and in native sorghum in Taiwan, individuals with the waxy allele <i>wx</i><sup>c</sup> have been found. The three-line method is a commonly used breeding strategy, which simplifies the process of emasculation to obtain hybrid F<sub>1</sub> offspring. In this study, imported sorghum variety Liangnuo No.1 (with male sterility), native glutinous sorghum variety SB6 from Taiwan (carrying the <i>wx</i><sup>c</sup> waxy allele), and sorghum reference genome variety BTx623 were used as research materials. The goal was to use the three-line method to produce waxy sorghums, including the male sterile line (A-line), male sterile maintenance line (B-line), and fertility-restoring line (R-line). The breeding results showed that by using backcross breeding, molecular-assisted selection, and traditional field selection methods, high-quality three-line materials (A-, B-, R-lines, named CNA1, CNB1 CNR1, respectively) and F<sub>1</sub> hybrid (CNH1) with favorable agronomic traits and yield quality were successfully obtained. |
| first_indexed | 2024-03-09T17:07:37Z |
| format | Article |
| id | doaj.art-a3e8fecefe5a42149c0d97db71d15602 |
| institution | Directory Open Access Journal |
| issn | 2077-0472 |
| language | English |
| last_indexed | 2024-03-09T17:07:37Z |
| publishDate | 2023-10-01 |
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| series | Agriculture |
| spelling | doaj.art-a3e8fecefe5a42149c0d97db71d156022023-11-24T14:22:59ZengMDPI AGAgriculture2077-04722023-10-011311205410.3390/agriculture13112054The Breeding of Waxy Sorghum Using Traditional Three-Line Method and Marker-Assisted SelectionYong-Pei Wu0Yu-Chi Chang1Su-Chen Kuo2Dah-Jing Liao3Ting-Yu Shen4Hsin-I Kuo5Sheng-Wen Wang6Yu-Chien Tseng7Chiayi Agricultural Experiment Branch, Taiwan Agricultural Research Institute, Ministry of Agriculture, Chiayi City 60015, TaiwanChiayi Agricultural Experiment Branch, Taiwan Agricultural Research Institute, Ministry of Agriculture, Chiayi City 60015, TaiwanChiayi Agricultural Experiment Branch, Taiwan Agricultural Research Institute, Ministry of Agriculture, Chiayi City 60015, TaiwanChiayi Agricultural Experiment Branch, Taiwan Agricultural Research Institute, Ministry of Agriculture, Chiayi City 60015, TaiwanChiayi Agricultural Experiment Branch, Taiwan Agricultural Research Institute, Ministry of Agriculture, Chiayi City 60015, TaiwanChiayi Agricultural Experiment Branch, Taiwan Agricultural Research Institute, Ministry of Agriculture, Chiayi City 60015, TaiwanDepartment of Agronomy, National Chiayi University, Chiayi City 60004, TaiwanDepartment of Agronomy, National Chiayi University, Chiayi City 60004, TaiwanSorghum (<i>Sorghum bicolor</i>) exhibits drought resistance and environmental adaptability, making it a crucial cereal crop for semi-arid regions. It has a wide range of uses, including as food, feed, brooms, alcohol production, and bioethanol. In particular, Taiwan imports nearly 50,000 tons of sorghum annually, primarily for the production of sorghum liquor. However, the ideal raw material for high-quality sorghum liquor is waxy sorghum, and not all sorghum varieties imported or promoted in Taiwan are of this waxy type. Consequently, there is a shortage of sufficient waxy sorghum raw materials to meet the demands of the Taiwan market. The occurrence of waxy sorghum (<i>wx</i>) is caused by the mutation of granule-bound starch synthase I (GBBS I), and there are currently several known types of mutants, carrying different <i>wx</i><sup>a</sup>, <i>wx</i><sup>b</sup>, and <i>wx</i><sup>c</sup> waxy alleles. Among them, <i>wx</i><sup>c</sup> is a novel mutation type, and in native sorghum in Taiwan, individuals with the waxy allele <i>wx</i><sup>c</sup> have been found. The three-line method is a commonly used breeding strategy, which simplifies the process of emasculation to obtain hybrid F<sub>1</sub> offspring. In this study, imported sorghum variety Liangnuo No.1 (with male sterility), native glutinous sorghum variety SB6 from Taiwan (carrying the <i>wx</i><sup>c</sup> waxy allele), and sorghum reference genome variety BTx623 were used as research materials. The goal was to use the three-line method to produce waxy sorghums, including the male sterile line (A-line), male sterile maintenance line (B-line), and fertility-restoring line (R-line). The breeding results showed that by using backcross breeding, molecular-assisted selection, and traditional field selection methods, high-quality three-line materials (A-, B-, R-lines, named CNA1, CNB1 CNR1, respectively) and F<sub>1</sub> hybrid (CNH1) with favorable agronomic traits and yield quality were successfully obtained.https://www.mdpi.com/2077-0472/13/11/2054backcrossingforeground selectiongranule-bound starch synthase Ihybrid |
| spellingShingle | Yong-Pei Wu Yu-Chi Chang Su-Chen Kuo Dah-Jing Liao Ting-Yu Shen Hsin-I Kuo Sheng-Wen Wang Yu-Chien Tseng The Breeding of Waxy Sorghum Using Traditional Three-Line Method and Marker-Assisted Selection Agriculture backcrossing foreground selection granule-bound starch synthase I hybrid |
| title | The Breeding of Waxy Sorghum Using Traditional Three-Line Method and Marker-Assisted Selection |
| title_full | The Breeding of Waxy Sorghum Using Traditional Three-Line Method and Marker-Assisted Selection |
| title_fullStr | The Breeding of Waxy Sorghum Using Traditional Three-Line Method and Marker-Assisted Selection |
| title_full_unstemmed | The Breeding of Waxy Sorghum Using Traditional Three-Line Method and Marker-Assisted Selection |
| title_short | The Breeding of Waxy Sorghum Using Traditional Three-Line Method and Marker-Assisted Selection |
| title_sort | breeding of waxy sorghum using traditional three line method and marker assisted selection |
| topic | backcrossing foreground selection granule-bound starch synthase I hybrid |
| url | https://www.mdpi.com/2077-0472/13/11/2054 |
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