دورية أكاديمية
Chromosome duplication in Lolium multiflorum Lam.
| العنوان: | Chromosome duplication in Lolium multiflorum Lam. |
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| المؤلفون: | Roselaine Cristina Pereira, Marco Túlio Mendes Ferreira, Lisete Chamma Davide, Moacir Pasqual, Andréa Mittelmann, Vânia Helena Techio |
| المصدر: | Crop Breeding and Applied Biotechnology, Vol 14, Iss 4, Pp 251-255 (2014) |
| بيانات النشر: | Brazilian Society of Plant Breeding, 2014. |
| سنة النشر: | 2014 |
| المجموعة: | LCC:Plant culture LCC:Biotechnology |
| مصطلحات موضوعية: | Polyploidization, tetraploid, forage grass, plant breeding, Plant culture, SB1-1110, Biotechnology, TP248.13-248.65 |
| الوصف: | Artificial chromosome duplication of diploid genotypes of Lolium multiflorum (2n=2x=14) is worthy to breeding, and aims to increase the expression of traits with agronomic interest. The purpose of this study was to obtain polyploid plants of L. multiflorum from local diploid populations in order to exploit adaptation and future verification of the effects of polyploidy in agronomic traits. Seedlings were immersed in different colchicine solutions for an exposure time of 3h and 24h. Ploidy determination was made by the DNA content and certified by chromosomes counts. The plants confirmed as tetraploids were placed in a greenhouse, and, at flowering, pollen viability was evaluated, and seeds were harvested to assess the stability of the progenies. The percentage of polyploids obtained was 20%. Pollen viability of the tetraploids generated ranged from 58% to 69%. The tetraploid plants obtained in the experiment generated 164 progenies, of which 109 presented DNA content compatible with the tetraploid level, showing stability of chromosome duplication in the filial generation. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1518-7853 1984-7033 |
| Relation: | http://www.sbmp.org.br/cbab/siscbab/uploads/c88212bb-bfc2-b8f6.pdf; https://doaj.org/toc/1518-7853; https://doaj.org/toc/1984-7033 |
| URL الوصول: | https://doaj.org/article/8e63428e63b4418785b442ee60e602cc |
| رقم الأكسشن: | edsdoj.8e63428e63b4418785b442ee60e602cc |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 15187853 19847033 |
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