Collection and diversity analysis of sugarcane wild germplasm resources in northern Guangdong

ZONG Wenyi; ZHANG Baoqing; LIU Jing; ZHOU Zhongfeng; LIU Junxian; HUANG Yuxin; ZHOU Shan; YANG Cuifang; ZHANG Gemin; XIONG Faqian; LI Boyin; DUAN Weixing

doi:10.7671/j.issn.1001-411X.202502018

Journal of South China Agricultural University > 2025 > 46(5): 597-606. > DOI: 10.7671/j.issn.1001-411X.202502018

ZONG Wenyi, ZHANG Baoqing, LIU Jing, et al. Collection and diversity analysis of sugarcane wild germplasm resources in northern Guangdong[J]. Journal of South China Agricultural University, 2025, 46(5): 597-606. DOI: 10.7671/j.issn.1001-411X.202502018

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Collection and diversity analysis of sugarcane wild germplasm resources in northern Guangdong

1.
Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences/Guangxi Key Laboratory of Sugarcane Genetic Improvement/Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Affairs, Nanning 530007, China
2.
College of Agriculture, Guangxi University, Nanning 530004, China
3.
Guangxi Academy of Agricultural Sciences, Nanning 530007, China

More Information

Received Date: February 20, 2025
Revised Date: March 21, 2025
Accepted Date: March 24, 2025
Available Online: July 02, 2025
Published Date: July 13, 2025

Abstract

Abstract

Objective
To investigate and collect sugarcane wild germplasm resources in northern Guangdong, analyze their genetic diversity, and provide excellent parental materials for sugarcane genetic breeding.
Method
The germplasm resources were investigated and collected at the interval of 30 km or at the altitude drop of 100 m. The collection route and geographic information were recorded, and the underground rhizomes were excavated and preserved. Total six quantitative traits and 20 qualitative traits were measured. A comprehensive evaluation was conducted by calculating the coefficient of variation, genetic diversity index, and correlations between quantitative traits.
Result
A total of 82 wild germplasm resources of sugarcane from four genera and four species were collected, including 28 samples of Saccharum spontaneum, 26 samples of Narenga porphyrocoma, 24 samples of Erianthus arundinaceus and four samples of Miscanthus sinensis. The phenotypic variation of sugarcane wild germplasm resources in northern Guangdong was rich, and the variation coefficient of quantitative traits was 10.9%−44.5%. The average variation coefficient of S. spontaneum was the largest (30.6%), followed by M. sinensis (30.3%), and the average variation coefficient of N. porphyrocoma was the smallest (28.1%). There was a very significant positive correlation between each pair of leaf length, leaf width, plant height and stalk diameter, and there was no significant correlation between brix and other traits. The Shannon-Wiener diversity index of qualitative traits was 0.000 0−1.222 7. Principal component analysis extracted two principal components from six quantitative traits, with a cumulative contribution rate of 62.312%. Cluster analysis revealed that six germplasms, including S. spontaneum accessions 2023GSM054 (cluster I) and 2023GSM246 (cluster III), N. porphyrocoma accessions 2023HBW224 (cluster I) and 2023HBW032 (cluster IV), and E. arundinaceus accessions 2023BM023 (cluster I) and 2023BM246 (cluster II), exhibited outstanding performance in yield and quality traits.
Conclusion
The sugarcane wild germplasm resources collected in northern Guangdong have rich genetic diversity in phenotypic traits, and six germplasms with excellent comprehensive performance are screened out, which provide excellent gene sources for sugarcane breeding.
- Sugarcane,
- Germplasm resource,
- Investigation and collection,
- Genetic diversity

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References (34)

References

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Corresponding author: DUAN Weixing, duanweixing84@126.com

1.
Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences/Guangxi Key Laboratory of Sugarcane Genetic Improvement/Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Affairs, Nanning 530007, China

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Collection and diversity analysis of sugarcane wild germplasm resources in northern Guangdong

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Corresponding author: DUAN Weixing, duanweixing84@126.com

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