Unveiling Morphological Variability in Rice (Oryza sativa L.) Restorer Lines for Trait Optimization through DUS Characterization and Diversity Analysis
The experiment was conducted during the kharif season (July to November, 2020) at the Seed Breeding Farm, Rice Improvement Project, Department of Plant Breeding & Genetics, College of Agriculture, Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur, Madhya Pradesh, India to investigate the morph...
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Puspa Publishing House
2025-05-01
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| Series: | International Journal of Economic Plants |
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| Online Access: | https://ojs.pphouse.org/index.php/IJEP/article/view/5766 |
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| author | Teena Patel S. K. Singh Shruti Paliwal Kumar Jai Anand |
| author_facet | Teena Patel S. K. Singh Shruti Paliwal Kumar Jai Anand |
| author_sort | Teena Patel |
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The experiment was conducted during the kharif season (July to November, 2020) at the Seed Breeding Farm, Rice Improvement Project, Department of Plant Breeding & Genetics, College of Agriculture, Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur, Madhya Pradesh, India to investigate the morphological variability in rice (Oryza sativa L.) restorer lines. A total of eighty restorer lines were evaluated and morphologically characterized in accordance with the Distinctness, Uniformity, and Stability (DUS) guidelines. Additionally, the Shannon-Weaver diversity index was calculated for all the observed traits, providing insights into the genetic diversity present within the lines studied. The results indicated significant variability and diversity in traits such as color of stigma, sterile lemma color, density of pubescence of lemma, distribution of awns, and attitude of flag leaf blade (both early and late stages). This variation will be instrumental in selecting specific genotypes for protection, conservation, and further breeding programs. Conversely, minimal variability was observed in traits such as color of tip of lemma, anthocyanin coloration of the keel, panicle exertion, anthocyanin coloration of internodes, anthocyanin coloration of the apex, and leaf auricles. Traits consistently present across all the genotypes such as leaf collar, leaf ligule, split shape of ligule, white ligule color, drooping curvature of the panicle main axis, presence of secondary branching of panicle, and semi-erect panicle branches were determined to be monomorphic, indicating uniformity among all genotypes for these characteristics.
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| format | Article |
| id | doaj-art-2df6c9ca19504c87b3b8f9af64deee74 |
| institution | Kabale University |
| issn | 2349-4735 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Puspa Publishing House |
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| series | International Journal of Economic Plants |
| spelling | doaj-art-2df6c9ca19504c87b3b8f9af64deee742025-08-20T03:47:58ZengPuspa Publishing HouseInternational Journal of Economic Plants2349-47352025-05-0112May, 310.23910/2/2025.5766Unveiling Morphological Variability in Rice (Oryza sativa L.) Restorer Lines for Trait Optimization through DUS Characterization and Diversity AnalysisTeena Patel0S. K. Singh1Shruti Paliwal2Kumar Jai Anand3Dept. of Plant Breeding and Genetics, Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur, Madhya Pradesh (482 004), IndiaDept. of Plant Breeding and Genetics, Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur, Madhya Pradesh (482 004), IndiaDept. of Genetics and Plant Breeding, Rajmata Vijayaraje Scindia Krishi Vishwa Vidyalaya, Gwalior, Madhya Pradesh (474 002), IndiaDept. of Plant Breeding and Genetics, Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur, Madhya Pradesh (482 004), India The experiment was conducted during the kharif season (July to November, 2020) at the Seed Breeding Farm, Rice Improvement Project, Department of Plant Breeding & Genetics, College of Agriculture, Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur, Madhya Pradesh, India to investigate the morphological variability in rice (Oryza sativa L.) restorer lines. A total of eighty restorer lines were evaluated and morphologically characterized in accordance with the Distinctness, Uniformity, and Stability (DUS) guidelines. Additionally, the Shannon-Weaver diversity index was calculated for all the observed traits, providing insights into the genetic diversity present within the lines studied. The results indicated significant variability and diversity in traits such as color of stigma, sterile lemma color, density of pubescence of lemma, distribution of awns, and attitude of flag leaf blade (both early and late stages). This variation will be instrumental in selecting specific genotypes for protection, conservation, and further breeding programs. Conversely, minimal variability was observed in traits such as color of tip of lemma, anthocyanin coloration of the keel, panicle exertion, anthocyanin coloration of internodes, anthocyanin coloration of the apex, and leaf auricles. Traits consistently present across all the genotypes such as leaf collar, leaf ligule, split shape of ligule, white ligule color, drooping curvature of the panicle main axis, presence of secondary branching of panicle, and semi-erect panicle branches were determined to be monomorphic, indicating uniformity among all genotypes for these characteristics. https://ojs.pphouse.org/index.php/IJEP/article/view/5766Restorer lines, DUS guidelines, morphological characterization |
| spellingShingle | Teena Patel S. K. Singh Shruti Paliwal Kumar Jai Anand Unveiling Morphological Variability in Rice (Oryza sativa L.) Restorer Lines for Trait Optimization through DUS Characterization and Diversity Analysis International Journal of Economic Plants Restorer lines, DUS guidelines, morphological characterization |
| title | Unveiling Morphological Variability in Rice (Oryza sativa L.) Restorer Lines for Trait Optimization through DUS Characterization and Diversity Analysis |
| title_full | Unveiling Morphological Variability in Rice (Oryza sativa L.) Restorer Lines for Trait Optimization through DUS Characterization and Diversity Analysis |
| title_fullStr | Unveiling Morphological Variability in Rice (Oryza sativa L.) Restorer Lines for Trait Optimization through DUS Characterization and Diversity Analysis |
| title_full_unstemmed | Unveiling Morphological Variability in Rice (Oryza sativa L.) Restorer Lines for Trait Optimization through DUS Characterization and Diversity Analysis |
| title_short | Unveiling Morphological Variability in Rice (Oryza sativa L.) Restorer Lines for Trait Optimization through DUS Characterization and Diversity Analysis |
| title_sort | unveiling morphological variability in rice oryza sativa l restorer lines for trait optimization through dus characterization and diversity analysis |
| topic | Restorer lines, DUS guidelines, morphological characterization |
| url | https://ojs.pphouse.org/index.php/IJEP/article/view/5766 |
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