Comparative patterns of principal component and cluster analysis under sodicity and normal soil conditions in rice (Oryza sativa L.)
Rice is an important food crop that feeds majority of world population. The crop is sensitive to sodicity stress and the area under sodicity is gradually increasing, resulting in decline in productivity. The present investigation aimed to study the genetic diversity patterns of rice germplasm un...
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| Format: | Article |
| Language: | English |
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Indian Society of Plant Breeders
2023-09-01
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| Series: | Electronic Journal of Plant Breeding |
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| Online Access: | https://ejplantbreeding.org/index.php/EJPB/article/view/4823 |
| _version_ | 1797662065659215872 |
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| author | M. Akilan1 , P. Jeyaprakash1*, M. Shanmuganathan2 , S. Meena3 , V. Rajanbabu1 and C. Vanniarajan1 |
| author_facet | M. Akilan1 , P. Jeyaprakash1*, M. Shanmuganathan2 , S. Meena3 , V. Rajanbabu1 and C. Vanniarajan1 |
| author_sort | M. Akilan1 , P. Jeyaprakash1*, M. Shanmuganathan2 , S. Meena3 , V. Rajanbabu1 and C. Vanniarajan1 |
| collection | DOAJ |
| description | Rice is an important food crop that feeds majority of world population. The crop is sensitive to sodicity stress and the
area under sodicity is gradually increasing, resulting in decline in productivity. The present investigation aimed to study
the genetic diversity patterns of rice germplasm under sodicity and normal soil conditions using principal component
and hierarchical cluster analysis. The germplasm was raised at two different environments and the observations
were subjected to principal component and hierarchical cluster analysis. The principal component analysis identified
four principal components having eigen value greater than one under sodic as well as normal soil environments.
The genotypes that exhibited higher values for a particular trait were identified using the biplot as they were located
closer to the trait vector. The comparison of biplots revealed that trait vectors for DFF, FLB, HGW and SPY were
located at different quadrants under sodic and normal soil environments. Hierarchical cluster analysis grouped the rice
genotypes into five clusters under both environments. The tolerant (TG63, TG121 and TG17) and susceptible (TG54,
TG55, TG86 and TG185) genotypes were identified by comparing the clustering pattern of these genotypes under
sodic and normal soil conditions. Identification of clusters with higher genetic distance (cluster I and cluster V) could
be employed in plant breeding programmes to produce higher frequency of transgressive segregants and develop
sodicity tolerant rice varieties. |
| first_indexed | 2024-03-11T18:54:44Z |
| format | Article |
| id | doaj.art-87dcd2bed21c4ceaafdb7a4d8f32d1ef |
| institution | Directory Open Access Journal |
| issn | 0975-928X |
| language | English |
| last_indexed | 2024-03-11T18:54:44Z |
| publishDate | 2023-09-01 |
| publisher | Indian Society of Plant Breeders |
| record_format | Article |
| series | Electronic Journal of Plant Breeding |
| spelling | doaj.art-87dcd2bed21c4ceaafdb7a4d8f32d1ef2023-10-11T06:53:31ZengIndian Society of Plant BreedersElectronic Journal of Plant Breeding0975-928X2023-09-01143893 901https://doi.org/10.37992/2023.1403.101Comparative patterns of principal component and cluster analysis under sodicity and normal soil conditions in rice (Oryza sativa L.)M. Akilan1 , P. Jeyaprakash1*, M. Shanmuganathan2 , S. Meena3 , V. Rajanbabu1 and C. Vanniarajan101 Department of Genetics and Plant Breeding, Anbil Dharmalingam Agricultural College and Research Institute, Tamil Nadu Agricultural University, Trichy – 620 027 2 Department of Genetics and Plant Breeding, Agricultural College and Research Institute, Tamil Nadu Agricultural University, Kudumiyanmalai – 622 104 3 Centre of Excellence in Sustaining Soil Health, Anbil Dharmalingam Agricultural College and Research Institute, Tamil Nadu Agricultural University, Trichy, Tamil Nadu, India- 620 027 *E-Mail: jeyaprakash.p@tnau.ac.inRice is an important food crop that feeds majority of world population. The crop is sensitive to sodicity stress and the area under sodicity is gradually increasing, resulting in decline in productivity. The present investigation aimed to study the genetic diversity patterns of rice germplasm under sodicity and normal soil conditions using principal component and hierarchical cluster analysis. The germplasm was raised at two different environments and the observations were subjected to principal component and hierarchical cluster analysis. The principal component analysis identified four principal components having eigen value greater than one under sodic as well as normal soil environments. The genotypes that exhibited higher values for a particular trait were identified using the biplot as they were located closer to the trait vector. The comparison of biplots revealed that trait vectors for DFF, FLB, HGW and SPY were located at different quadrants under sodic and normal soil environments. Hierarchical cluster analysis grouped the rice genotypes into five clusters under both environments. The tolerant (TG63, TG121 and TG17) and susceptible (TG54, TG55, TG86 and TG185) genotypes were identified by comparing the clustering pattern of these genotypes under sodic and normal soil conditions. Identification of clusters with higher genetic distance (cluster I and cluster V) could be employed in plant breeding programmes to produce higher frequency of transgressive segregants and develop sodicity tolerant rice varieties.https://ejplantbreeding.org/index.php/EJPB/article/view/4823ricediversitypcahierarchical cluster analysis |
| spellingShingle | M. Akilan1 , P. Jeyaprakash1*, M. Shanmuganathan2 , S. Meena3 , V. Rajanbabu1 and C. Vanniarajan1 Comparative patterns of principal component and cluster analysis under sodicity and normal soil conditions in rice (Oryza sativa L.) Electronic Journal of Plant Breeding rice diversity pca hierarchical cluster analysis |
| title | Comparative patterns of principal component and cluster analysis under sodicity and normal soil conditions in rice (Oryza sativa L.) |
| title_full | Comparative patterns of principal component and cluster analysis under sodicity and normal soil conditions in rice (Oryza sativa L.) |
| title_fullStr | Comparative patterns of principal component and cluster analysis under sodicity and normal soil conditions in rice (Oryza sativa L.) |
| title_full_unstemmed | Comparative patterns of principal component and cluster analysis under sodicity and normal soil conditions in rice (Oryza sativa L.) |
| title_short | Comparative patterns of principal component and cluster analysis under sodicity and normal soil conditions in rice (Oryza sativa L.) |
| title_sort | comparative patterns of principal component and cluster analysis under sodicity and normal soil conditions in rice oryza sativa l |
| topic | rice diversity pca hierarchical cluster analysis |
| url | https://ejplantbreeding.org/index.php/EJPB/article/view/4823 |
| work_keys_str_mv | AT makilan1pjeyaprakash1mshanmuganathan2smeena3vrajanbabu1andcvanniarajan1 comparativepatternsofprincipalcomponentandclusteranalysisundersodicityandnormalsoilconditionsinriceoryzasatival |