Genetic Diversity Analysis of Phenotypic Traits in Yuetang serial Sugarcane (Saccharum officinarum L.) Parental resources

doi:10.13430/j.cnki.jpgr.20171221003

Home > Archive>Volume 19, Issue 4, 2018 >748-759. DOI:10.13430/j.cnki.jpgr.20171221003

Genetic Diversity Analysis of Phenotypic Traits in Yuetang serial Sugarcane (Saccharum officinarum L.) Parental resources
DOI:
                        10.13430/j.cnki.jpgr.20171221003
                    
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Affiliation:1Hainan Sugarcane Breeding Station of GSIRI , Sanya, Hainan 572025; 2 Guangdong Scientific Observation Test Station of Sugarcane Germplasm Resources and Utilization, Ministry of Agriculture, Sanya, Hainan 572025,1Hainan Sugarcane Breeding Station of GSIRI , Sanya, Hainan 572025; 2 Guangdong Scientific Observation Test Station of Sugarcane Germplasm Resources and Utilization, Ministry of Agriculture, Sanya, Hainan 572025,1Hainan Sugarcane Breeding Station of GSIRI , Sanya, Hainan 572025; 2 Guangdong Scientific Observation Test Station of Sugarcane Germplasm Resources and Utilization, Ministry of Agriculture, Sanya, Hainan 572025,1Hainan Sugarcane Breeding Station of GSIRI , Sanya, Hainan 572025; 2 Guangdong Scientific Observation Test Station of Sugarcane Germplasm Resources and Utilization, Ministry of Agriculture, Sanya, Hainan 572025,1Hainan Sugarcane Breeding Station of GSIRI , Sanya, Hainan 572025; 2 Guangdong Scientific Observation Test Station of Sugarcane Germplasm Resources and Utilization, Ministry of Agriculture, Sanya, Hainan 572025,1Hainan Sugarcane Breeding Station of GSIRI , Sanya, Hainan 572025; 2 Guangdong Scientific Observation Test Station of Sugarcane Germplasm Resources and Utilization, Ministry of Agriculture, Sanya, Hainan 572025,1Hainan Sugarcane Breeding Station of GSIRI , Sanya, Hainan 572025; 2 Guangdong Scientific Observation Test Station of Sugarcane Germplasm Resources and Utilization, Ministry of Agriculture, Sanya, Hainan 572025,1Hainan Sugarcane Breeding Station of GSIRI , Sanya, Hainan 572025; 2 Guangdong Scientific Observation Test Station of Sugarcane Germplasm Resources and Utilization, Ministry of Agriculture, Sanya, Hainan 572025
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Abstract:

In order to understand the genetic relationship of Yuetang sugarcane parental lines and improve the use efficiency of this germplasm resource, the genetic diversity and cluster relationships were conducted via determining thirty-five phenotypic traits in 106 Yuetang sugarcane parental lines and 10 major sugarcane varieties. The results indicated a higher genetic diversity in Yuetang sugarcane parents with Shannon's information index 0.782±0.082 and Nei' gene diversity 0.782±0.082. The higher phenotypic variations on leaf width and stem color exposed were observed. The range of genetic similarity was from 388 to 0.829. By cluster analysis based on the genetic similarity, 116 genotypes could be divided into two groups, 6 subgroups or 5 small groups. The genotypes released in the 1980s showed the highest genetic diversity. Seven groups could be clustered into three groups (Ⅰ, Ⅱ, Ⅲ) and branch Ⅲ only included major sugarcane varieties. Thus, this result could provide a theoretical guidance for selecting cross parents and parental combination.

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Received:December 21,2017
Revised:May 12,2018
Adopted:March 01,2018
Online: July 16,2018
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