Maintenance of inflorescence size variability within common buckwheat (<i>Fagopyrum esculentum</i> Moench) cultivars of various origin: the phenomenon and its possible causes
Background. Intrapopulation polymorphism usually can be interpreted as a result of balancing selection, but the basic mechanisms of such selection are not always clear. Earlier we documented a wide variation in the inflorescence size within one of the most genetically uniform common buckwheat (Fagop...
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N.I. Vavilov All-Russian Institute of Plant Genetic Resources
2024-10-01
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| Series: | Труды по прикладной ботанике, генетике и селекции |
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| Online Access: | https://elpub.vir.nw.ru/jour/article/view/2036 |
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| author | A. N. Fesenko I. N. Fesenko O. V. Biryukova |
| author_facet | A. N. Fesenko I. N. Fesenko O. V. Biryukova |
| author_sort | A. N. Fesenko |
| collection | DOAJ |
| description | Background. Intrapopulation polymorphism usually can be interpreted as a result of balancing selection, but the basic mechanisms of such selection are not always clear. Earlier we documented a wide variation in the inflorescence size within one of the most genetically uniform common buckwheat (Fagopyrum esculentum Moench) cultivar ‘Skorospelaya 86’, with larger sizes controlled by recessive alleles of multiple genes. The objective of the present work was to analyze the variation within a set of buckwheat cultivars representing different morphological types of the crop, and try to make out possible mechanisms that underlie it. Material and methods. A set of buckwheat cultivars of various origin and belonging to different morphological types were analyzed. The size of inflorescences was assessed as a number of their iterative subunits, i.e., partial floret clusters (PFCs). The number of mature seeds in the entire inflorescence and various PFCs was also counted. Results and conclusions. All the cultivars were variable, with the range at the species level from 6 to 24 PFCs. Accumulation of the genes determining a larger inflorescence seems to be simply explained: larger inflorescences tended to produce more seeds than smaller ones. However, it is not so easy to explain the maintenance of the inflorescence size variability, i.e., why the alleles determining small inflorescences were not lost during the artificial selection for higher seed productivity. Probably, such polymorphism may be useful for maintaining heterosis at the population level. |
| format | Article |
| id | doaj-art-51a8d5984e8f4ca5a177b129e53089ec |
| institution | Kabale University |
| issn | 2227-8834 2619-0982 |
| language | English |
| publishDate | 2024-10-01 |
| publisher | N.I. Vavilov All-Russian Institute of Plant Genetic Resources |
| record_format | Article |
| series | Труды по прикладной ботанике, генетике и селекции |
| spelling | doaj-art-51a8d5984e8f4ca5a177b129e53089ec2025-02-03T08:31:17ZengN.I. Vavilov All-Russian Institute of Plant Genetic ResourcesТруды по прикладной ботанике, генетике и селекции2227-88342619-09822024-10-01185314715610.30901/2227-8834-2024-3-147-156822Maintenance of inflorescence size variability within common buckwheat (<i>Fagopyrum esculentum</i> Moench) cultivars of various origin: the phenomenon and its possible causesA. N. Fesenko0I. N. Fesenko1O. V. Biryukova2Federal Scientific Center of Legumes and Groat CropsFederal Scientific Center of Legumes and Groat CropsFederal Scientific Center of Legumes and Groat CropsBackground. Intrapopulation polymorphism usually can be interpreted as a result of balancing selection, but the basic mechanisms of such selection are not always clear. Earlier we documented a wide variation in the inflorescence size within one of the most genetically uniform common buckwheat (Fagopyrum esculentum Moench) cultivar ‘Skorospelaya 86’, with larger sizes controlled by recessive alleles of multiple genes. The objective of the present work was to analyze the variation within a set of buckwheat cultivars representing different morphological types of the crop, and try to make out possible mechanisms that underlie it. Material and methods. A set of buckwheat cultivars of various origin and belonging to different morphological types were analyzed. The size of inflorescences was assessed as a number of their iterative subunits, i.e., partial floret clusters (PFCs). The number of mature seeds in the entire inflorescence and various PFCs was also counted. Results and conclusions. All the cultivars were variable, with the range at the species level from 6 to 24 PFCs. Accumulation of the genes determining a larger inflorescence seems to be simply explained: larger inflorescences tended to produce more seeds than smaller ones. However, it is not so easy to explain the maintenance of the inflorescence size variability, i.e., why the alleles determining small inflorescences were not lost during the artificial selection for higher seed productivity. Probably, such polymorphism may be useful for maintaining heterosis at the population level.https://elpub.vir.nw.ru/jour/article/view/2036morphological typepartial floret clustervariabilitybalancing selection |
| spellingShingle | A. N. Fesenko I. N. Fesenko O. V. Biryukova Maintenance of inflorescence size variability within common buckwheat (<i>Fagopyrum esculentum</i> Moench) cultivars of various origin: the phenomenon and its possible causes Труды по прикладной ботанике, генетике и селекции morphological type partial floret cluster variability balancing selection |
| title | Maintenance of inflorescence size variability within common buckwheat (<i>Fagopyrum esculentum</i> Moench) cultivars of various origin: the phenomenon and its possible causes |
| title_full | Maintenance of inflorescence size variability within common buckwheat (<i>Fagopyrum esculentum</i> Moench) cultivars of various origin: the phenomenon and its possible causes |
| title_fullStr | Maintenance of inflorescence size variability within common buckwheat (<i>Fagopyrum esculentum</i> Moench) cultivars of various origin: the phenomenon and its possible causes |
| title_full_unstemmed | Maintenance of inflorescence size variability within common buckwheat (<i>Fagopyrum esculentum</i> Moench) cultivars of various origin: the phenomenon and its possible causes |
| title_short | Maintenance of inflorescence size variability within common buckwheat (<i>Fagopyrum esculentum</i> Moench) cultivars of various origin: the phenomenon and its possible causes |
| title_sort | maintenance of inflorescence size variability within common buckwheat i fagopyrum esculentum i moench cultivars of various origin the phenomenon and its possible causes |
| topic | morphological type partial floret cluster variability balancing selection |
| url | https://elpub.vir.nw.ru/jour/article/view/2036 |
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