Ovule Number and Flower Size in Pea (<i>Pisum sativum</i> L.): Variation, Heritability, and Correlation with Some Components of Productivity
The seed yield in pea (<i>Pisum sativum</i> L.) depends on numerous environmental and genotypic factors. The ongoing climate changes draw one’s attention to genetics and variation of underexplored reproductive traits. This study focuses on ovule number (ON) and flower size expressed as a...
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MDPI AG
2023-03-01
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| Series: | Horticulturae |
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| Online Access: | https://www.mdpi.com/2311-7524/9/3/371 |
| _version_ | 1797611381943435264 |
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| author | Andrey Sinjushin Olga Ash Galina Khartina |
| author_facet | Andrey Sinjushin Olga Ash Galina Khartina |
| author_sort | Andrey Sinjushin |
| collection | DOAJ |
| description | The seed yield in pea (<i>Pisum sativum</i> L.) depends on numerous environmental and genotypic factors. The ongoing climate changes draw one’s attention to genetics and variation of underexplored reproductive traits. This study focuses on ovule number (ON) and flower size expressed as a length of flag petal (FL), in terms of their heritability, variability, and correlation with 1000 seed mass (TSM), seed number per pod, and seed/ovule ratio. A set of pea accessions was planted over several years in field conditions. Some of these accessions were also grown in a glasshouse. The chosen values were scored on living plants or while harvesting seeds. Nonparametric statistical methods were applied. Heritability of ON and FL was studied in five hybrid F<sub>1</sub>/F<sub>2</sub> combinations. We found a relatively low (ca. 0.5) broad sense heritability of both ON and FL. Among other traits, TSM and ON reproduced best over the years. FL exhibited no reproducible correlations with other traits and cannot be used as a predictor of productivity. Water deficit and heat stress reduce seed yield in pea due to both seed abortion and development of fewer ovules. The differential and heritable ability to retain ON may become a basis for breeding pea cultivars adapted to changing climate. |
| first_indexed | 2024-03-11T06:28:05Z |
| format | Article |
| id | doaj.art-6e3da26991b842f9929fa2059fa515b4 |
| institution | Directory Open Access Journal |
| issn | 2311-7524 |
| language | English |
| last_indexed | 2024-03-11T06:28:05Z |
| publishDate | 2023-03-01 |
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| record_format | Article |
| series | Horticulturae |
| spelling | doaj.art-6e3da26991b842f9929fa2059fa515b42023-11-17T11:24:44ZengMDPI AGHorticulturae2311-75242023-03-019337110.3390/horticulturae9030371Ovule Number and Flower Size in Pea (<i>Pisum sativum</i> L.): Variation, Heritability, and Correlation with Some Components of ProductivityAndrey Sinjushin0Olga Ash1Galina Khartina2Department of Genetics, Biological Faculty, Lomonosov Moscow State University, Leninskie Gory, 1-12, 119234 Moscow, RussiaDepartment of Genetics, Biological Faculty, Lomonosov Moscow State University, Leninskie Gory, 1-12, 119234 Moscow, RussiaDepartment of Genetics, Biological Faculty, Lomonosov Moscow State University, Leninskie Gory, 1-12, 119234 Moscow, RussiaThe seed yield in pea (<i>Pisum sativum</i> L.) depends on numerous environmental and genotypic factors. The ongoing climate changes draw one’s attention to genetics and variation of underexplored reproductive traits. This study focuses on ovule number (ON) and flower size expressed as a length of flag petal (FL), in terms of their heritability, variability, and correlation with 1000 seed mass (TSM), seed number per pod, and seed/ovule ratio. A set of pea accessions was planted over several years in field conditions. Some of these accessions were also grown in a glasshouse. The chosen values were scored on living plants or while harvesting seeds. Nonparametric statistical methods were applied. Heritability of ON and FL was studied in five hybrid F<sub>1</sub>/F<sub>2</sub> combinations. We found a relatively low (ca. 0.5) broad sense heritability of both ON and FL. Among other traits, TSM and ON reproduced best over the years. FL exhibited no reproducible correlations with other traits and cannot be used as a predictor of productivity. Water deficit and heat stress reduce seed yield in pea due to both seed abortion and development of fewer ovules. The differential and heritable ability to retain ON may become a basis for breeding pea cultivars adapted to changing climate.https://www.mdpi.com/2311-7524/9/3/371Leguminosaereproducibilityseed setstabilityyield |
| spellingShingle | Andrey Sinjushin Olga Ash Galina Khartina Ovule Number and Flower Size in Pea (<i>Pisum sativum</i> L.): Variation, Heritability, and Correlation with Some Components of Productivity Horticulturae Leguminosae reproducibility seed set stability yield |
| title | Ovule Number and Flower Size in Pea (<i>Pisum sativum</i> L.): Variation, Heritability, and Correlation with Some Components of Productivity |
| title_full | Ovule Number and Flower Size in Pea (<i>Pisum sativum</i> L.): Variation, Heritability, and Correlation with Some Components of Productivity |
| title_fullStr | Ovule Number and Flower Size in Pea (<i>Pisum sativum</i> L.): Variation, Heritability, and Correlation with Some Components of Productivity |
| title_full_unstemmed | Ovule Number and Flower Size in Pea (<i>Pisum sativum</i> L.): Variation, Heritability, and Correlation with Some Components of Productivity |
| title_short | Ovule Number and Flower Size in Pea (<i>Pisum sativum</i> L.): Variation, Heritability, and Correlation with Some Components of Productivity |
| title_sort | ovule number and flower size in pea i pisum sativum i l variation heritability and correlation with some components of productivity |
| topic | Leguminosae reproducibility seed set stability yield |
| url | https://www.mdpi.com/2311-7524/9/3/371 |
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