Genetic variation for clonal propagation and trait association with field performance in sainfoin
<p>Clonal plant materials with identical genotypes may be used to precisely detect environmental effects and genotype x environment interactions resulting in a more accurate estimate of genetic parameters in plant genetic analysis. In sainfoin (<em>Onobrychis viciifolia</em>), know...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Centro Internacional de Agricultura Tropical
2016-01-01
|
| Series: | Tropical Grasslands-Forrajes Tropicales |
| Online Access: | http://tropicalgrasslands.info/index.php/tgft/article/view/243 |
| _version_ | 1818314331497955328 |
|---|---|
| author | Sayareh Irani Mohammad M. Majidi Aghafakhr Mirlohi |
| author_facet | Sayareh Irani Mohammad M. Majidi Aghafakhr Mirlohi |
| author_sort | Sayareh Irani |
| collection | DOAJ |
| description | <p>Clonal plant materials with identical genotypes may be used to precisely detect environmental effects and genotype x environment interactions resulting in a more accurate estimate of genetic parameters in plant genetic analysis. In sainfoin (<em>Onobrychis viciifolia</em>), knowledge on genetic variation for clonal propagation and its association with field performance is limited. Eleven natural ecotypes of sainfoin from wide geographical areas of Iran were used to evaluate genetic variation for clonal propagation and its association with related traits. From each ecotype 11‒21 genotypes were cloned via cuttings. Then, clones of a hundred genotypes from 10 ecotypes were transplanted to the field. High genetic variation was found between ecotypes of sainfoin for producing viable clones. The mean values for viable clones varied from 50% (Borujen ecotype) to 97% (Najafabad ecotype). The values of within-ecotype coefficient of variation were higher than the genetic coefficient of variation. The highest heritability estimates were obtained for sensitivity to powdery mildew, plant height and number of stems per plant. Dry matter yield (DMY) in the field was significantly and positively correlated with plant height and number of stems per plant, inflorescence length and growth score. An association between DMY and percent of viable clones was found indicating the possibility of selection during the early stages of clonal propagation. According to principal component analysis, Baft and Fereydunshahr ecotypes have potential for improving production of sainfoin if introduced into breeding programs. These issues warrant further study.</p><p><strong>Keywords:</strong> Clone viability, genetic variability, Onobrychis viciifolia, phenotypic correlation, principal component analysis.</p><strong>DOI: </strong><a title="10.17138/TGFT(4)38-46" href="http://dx.doi.org/10.17138/TGFT(4)38-46" target="_blank">10.17138/TGFT(4)38-46</a> |
| first_indexed | 2024-12-13T08:47:57Z |
| format | Article |
| id | doaj.art-ed5ff57c89a549328f62a087d4864c82 |
| institution | Directory Open Access Journal |
| issn | 2346-3775 |
| language | English |
| last_indexed | 2024-12-13T08:47:57Z |
| publishDate | 2016-01-01 |
| publisher | Centro Internacional de Agricultura Tropical |
| record_format | Article |
| series | Tropical Grasslands-Forrajes Tropicales |
| spelling | doaj.art-ed5ff57c89a549328f62a087d4864c822022-12-21T23:53:25ZengCentro Internacional de Agricultura TropicalTropical Grasslands-Forrajes Tropicales2346-37752016-01-0141384610.17138/tgft(4)38-46167Genetic variation for clonal propagation and trait association with field performance in sainfoinSayareh Irani0Mohammad M. Majidi1Aghafakhr Mirlohi2PhD Student in Plant Breeding and Genetics Isfahan University of Technology Isfahan, IranAssociate Professor of Agronomy and Plant Breeding, Department of Agronomy and Plant Breeding, College of Agriculture, Isfahan University of Technology, Isfahan, 84156-8311, IranProfessor of Plant Genetics and Breeding, Department of Agronomy and Plant Breeding, College of Agriculture, Isfahan University of Technology, Isfahan, 84156-83111, Iran,<p>Clonal plant materials with identical genotypes may be used to precisely detect environmental effects and genotype x environment interactions resulting in a more accurate estimate of genetic parameters in plant genetic analysis. In sainfoin (<em>Onobrychis viciifolia</em>), knowledge on genetic variation for clonal propagation and its association with field performance is limited. Eleven natural ecotypes of sainfoin from wide geographical areas of Iran were used to evaluate genetic variation for clonal propagation and its association with related traits. From each ecotype 11‒21 genotypes were cloned via cuttings. Then, clones of a hundred genotypes from 10 ecotypes were transplanted to the field. High genetic variation was found between ecotypes of sainfoin for producing viable clones. The mean values for viable clones varied from 50% (Borujen ecotype) to 97% (Najafabad ecotype). The values of within-ecotype coefficient of variation were higher than the genetic coefficient of variation. The highest heritability estimates were obtained for sensitivity to powdery mildew, plant height and number of stems per plant. Dry matter yield (DMY) in the field was significantly and positively correlated with plant height and number of stems per plant, inflorescence length and growth score. An association between DMY and percent of viable clones was found indicating the possibility of selection during the early stages of clonal propagation. According to principal component analysis, Baft and Fereydunshahr ecotypes have potential for improving production of sainfoin if introduced into breeding programs. These issues warrant further study.</p><p><strong>Keywords:</strong> Clone viability, genetic variability, Onobrychis viciifolia, phenotypic correlation, principal component analysis.</p><strong>DOI: </strong><a title="10.17138/TGFT(4)38-46" href="http://dx.doi.org/10.17138/TGFT(4)38-46" target="_blank">10.17138/TGFT(4)38-46</a>http://tropicalgrasslands.info/index.php/tgft/article/view/243 |
| spellingShingle | Sayareh Irani Mohammad M. Majidi Aghafakhr Mirlohi Genetic variation for clonal propagation and trait association with field performance in sainfoin Tropical Grasslands-Forrajes Tropicales |
| title | Genetic variation for clonal propagation and trait association with field performance in sainfoin |
| title_full | Genetic variation for clonal propagation and trait association with field performance in sainfoin |
| title_fullStr | Genetic variation for clonal propagation and trait association with field performance in sainfoin |
| title_full_unstemmed | Genetic variation for clonal propagation and trait association with field performance in sainfoin |
| title_short | Genetic variation for clonal propagation and trait association with field performance in sainfoin |
| title_sort | genetic variation for clonal propagation and trait association with field performance in sainfoin |
| url | http://tropicalgrasslands.info/index.php/tgft/article/view/243 |
| work_keys_str_mv | AT sayarehirani geneticvariationforclonalpropagationandtraitassociationwithfieldperformanceinsainfoin AT mohammadmmajidi geneticvariationforclonalpropagationandtraitassociationwithfieldperformanceinsainfoin AT aghafakhrmirlohi geneticvariationforclonalpropagationandtraitassociationwithfieldperformanceinsainfoin |