Domestication of <i>Avena magna</i> Murphy et Terrell: a wild tetraploid oat species endemic of Morocco
Avena magna Murphy et Terrell (2n = 4x = 28), a tetraploid oat species endemic of Morocco, has a high groat protein content (more than 20%), good resistance to diseases and good adaptability to the Mediterranean edaphic and climate conditions. Moreover, this taxon is morphologically similar to the h...
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| Format: | Article |
| Language: | English |
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N.I. Vavilov All-Russian Institute of Plant Genetic Resources
2020-04-01
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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/551 |
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| author | N. Saidi N. Shaimi A. S. Idrissi A. Souihka F. Gaboun C. Al Faiz G. Ladizinsky |
| author_facet | N. Saidi N. Shaimi A. S. Idrissi A. Souihka F. Gaboun C. Al Faiz G. Ladizinsky |
| author_sort | N. Saidi |
| collection | DOAJ |
| description | Avena magna Murphy et Terrell (2n = 4x = 28), a tetraploid oat species endemic of Morocco, has a high groat protein content (more than 20%), good resistance to diseases and good adaptability to the Mediterranean edaphic and climate conditions. Moreover, this taxon is morphologically similar to the hexaploid oat species A. sativa and promising for interspecific crosses with A. sativa in order to transfer the domestication syndrome into it. Four hybridization cycles employing four accessions of A. magna and five Moroccan hexaploid oat cultivars of A. sativa were accomplished to domesticate A. magna. Morphological characterization and cytogenetic analysis of derivative hybrid seeds were made to determine their ploidy level and select the seeds with 2n = 28. The overall combinations yielded 81 hybrid plants with 2n varying from 28 to 29, with 58% having 2n = 28, and pollen fertility over 85%. However, 27 hybrids yielded a seed set ranging from 20 to 80%. Selected hybrid plants were subjected to pedigree selection in the field until they reached the 8th generation and assessed for agronomic performance. Three domesticated lines of tetraploid oat A. magna were selected for their good disease resistance. Analysis of groat protein content in the selected hybrids using the Kjeldahl method showed that it was 2 to 3% higher than in their parents. |
| first_indexed | 2024-03-08T12:11:56Z |
| format | Article |
| id | doaj.art-8d01555044ea42bba26ec3ef6725ba81 |
| institution | Directory Open Access Journal |
| issn | 2227-8834 2619-0982 |
| language | English |
| last_indexed | 2024-03-08T12:11:56Z |
| publishDate | 2020-04-01 |
| 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-8d01555044ea42bba26ec3ef6725ba812024-01-22T19:30:11ZengN.I. Vavilov All-Russian Institute of Plant Genetic ResourcesТруды по прикладной ботанике, генетике и селекции2227-88342619-09822020-04-011811849210.30901/2227-8834-2020-1-84-92417Domestication of <i>Avena magna</i> Murphy et Terrell: a wild tetraploid oat species endemic of MoroccoN. Saidi0N. Shaimi1A. S. Idrissi2A. Souihka3F. Gaboun4C. Al Faiz5G. Ladizinsky6INRA, RU Plant breeding, Conservation and Valorisation of Plant Genetic Resources, RCAR-RabatINRA, RU Plant breeding, Conservation and Valorisation of Plant Genetic Resources, RCAR-RabatINRA, RU Plant breeding, Conservation and Valorisation of Plant Genetic Resources, RCAR-RabatINRA, RCAR-Rabat, Experimental domaine of KoudiaINRA, RU of Biotechnology and BioinformaticsINRA, RU Plant breeding, Conservation and Valorisation of Plant Genetic Resources, RCAR-RabatUSAID, Project No. TAMOU 97-053Avena magna Murphy et Terrell (2n = 4x = 28), a tetraploid oat species endemic of Morocco, has a high groat protein content (more than 20%), good resistance to diseases and good adaptability to the Mediterranean edaphic and climate conditions. Moreover, this taxon is morphologically similar to the hexaploid oat species A. sativa and promising for interspecific crosses with A. sativa in order to transfer the domestication syndrome into it. Four hybridization cycles employing four accessions of A. magna and five Moroccan hexaploid oat cultivars of A. sativa were accomplished to domesticate A. magna. Morphological characterization and cytogenetic analysis of derivative hybrid seeds were made to determine their ploidy level and select the seeds with 2n = 28. The overall combinations yielded 81 hybrid plants with 2n varying from 28 to 29, with 58% having 2n = 28, and pollen fertility over 85%. However, 27 hybrids yielded a seed set ranging from 20 to 80%. Selected hybrid plants were subjected to pedigree selection in the field until they reached the 8th generation and assessed for agronomic performance. Three domesticated lines of tetraploid oat A. magna were selected for their good disease resistance. Analysis of groat protein content in the selected hybrids using the Kjeldahl method showed that it was 2 to 3% higher than in their parents.https://elpub.vir.nw.ru/jour/article/view/551oatscommon oatgroat protein contentkjeldahl analysishuman consumption |
| spellingShingle | N. Saidi N. Shaimi A. S. Idrissi A. Souihka F. Gaboun C. Al Faiz G. Ladizinsky Domestication of <i>Avena magna</i> Murphy et Terrell: a wild tetraploid oat species endemic of Morocco Труды по прикладной ботанике, генетике и селекции oats common oat groat protein content kjeldahl analysis human consumption |
| title | Domestication of <i>Avena magna</i> Murphy et Terrell: a wild tetraploid oat species endemic of Morocco |
| title_full | Domestication of <i>Avena magna</i> Murphy et Terrell: a wild tetraploid oat species endemic of Morocco |
| title_fullStr | Domestication of <i>Avena magna</i> Murphy et Terrell: a wild tetraploid oat species endemic of Morocco |
| title_full_unstemmed | Domestication of <i>Avena magna</i> Murphy et Terrell: a wild tetraploid oat species endemic of Morocco |
| title_short | Domestication of <i>Avena magna</i> Murphy et Terrell: a wild tetraploid oat species endemic of Morocco |
| title_sort | domestication of i avena magna i murphy et terrell a wild tetraploid oat species endemic of morocco |
| topic | oats common oat groat protein content kjeldahl analysis human consumption |
| url | https://elpub.vir.nw.ru/jour/article/view/551 |
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