Interspecific hybrid between cultivated sunflower (Helianthus annuus L.) and silver leaf sunflower H. argophyllus T. & G.: Cytomorphological and molecular characterization
| العنوان: | Interspecific hybrid between cultivated sunflower (Helianthus annuus L.) and silver leaf sunflower H. argophyllus T. & G.: Cytomorphological and molecular characterization |
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| المؤلفون: | Prashant Kumar Soni, H. P. Meena, M. Sujatha |
| المصدر: | Indian Journal of Genetics and Plant Breeding (The). 77:547 |
| بيانات النشر: | The Indian Society of Genetics and Plant Breeding, 2017. |
| سنة النشر: | 2017 |
| مصطلحات موضوعية: | 0106 biological sciences, 0301 basic medicine, food and beverages, Chromosome, Plant Science, Interspecific competition, Biology, medicine.disease_cause, 01 natural sciences, Sunflower, 03 medical and health sciences, 030104 developmental biology, Meiosis, Pollen, Botany, Helianthus annuus, Genetics, medicine, Downy mildew, 010606 plant biology & botany, Hybrid |
| الوصف: | Successful interspecific hybrids were obtained through hybridization between cultivated sunflower (Helianthus annuus L.; 2n=2x=34) variety ARM-243B and a wild species (H. argophyllus; 2n=2x=34) accession no. PI-468649 for transferring desirable traits like downy mildew resistance, oil content and hopper resistance from wild species into cultivated background. Morphological, cytological and simple sequence repeats (SSR)-based molecular analyses were carried out to confirm the hybrid nature of the F1 plants. The hybrids exhibited morphological features intermediate to both the parents for few attributes and showed greater similarity to wild Helianthus species for traits like leaf and stem hairiness, flower colour, stem size, branching, disc floret pigmentation, plant height, seed size and seed shape, etc. A reduction (89.9%) in pollen fertility was recorded in F1 plants. Meiotic analysis revealed the presence of univalents, bivalents, trivalents and quadrivalents in all the pollen mother cells (PMCs) analysed. Multivalents were observed in few PMCs, indicating segmental homology between chromosomes. Higher level of chromosome configurations like quadrivalents were observed in 42 out of 50 PMCs. Frequently observed chromosome configurations in diakinensis were 15 II + 1 IV and 13 II + 2 IV. The results suggested that the species H. argophyllus and H. annuus differ by 1–2 translocations. SSR primers ORS-05, ORS-896 and ORS-908 were found to reveal highly polymorphic bands in the parents. |
| تدمد: | 0975-6906 0019-5200 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::872d2658e1bffa660952dec61beac454 https://doi.org/10.5958/0975-6906.2017.00072.4 |
| رقم الأكسشن: | edsair.doi...........872d2658e1bffa660952dec61beac454 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 09756906 00195200 |
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