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مکان یابی ژن های کنترل کننده سرعت و درصد جوانه زنی در آفتابگردان تحت شرایط تنش شوری | ||
| علوم و فناوری بذر ایران | ||
| مقاله 2، دوره 5، شماره 2 - شماره پیاپی 10، بهمن 1395، صفحه 9-22 اصل مقاله (624.42 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| نویسندگان | ||
| فریبا مرسلی آقاجری1؛ رضا درویش زاده* 2؛ حمید حاتمی ملکی3 | ||
| 1دانشجوی کارشناسی ارشد، دانشگاه ارومیه، دانشکده کشاورزی، گروه اصلاح و بیوتکنولوژی گیاهی | ||
| 2دانشیار، دانشگاه ارومیه، دانشکده کشاورزی، گروه اصلاح و بیوتکنولوژی گیاهی | ||
| 3استادیار، دانشگاه مراغه،دانشکده کشاورزی،گروه زراعت و اصلاح نباتات | ||
| چکیده | ||
| تنش شوری از جمله عوامل محدود کننده رشد گیاهان میباشد. به منظور بررسی تأثیر سطوح مختلف شوری بر صفات درصد و سرعت جوانهزنی بذور آفتابگردان و تعیین مکان ژنهای کنترلکننده صفات مذکور در ژنوم آفتابگردان، مطالعهای در قالب آزمایش فاکتوریل بر پایه طرح کاملاً تصادفی با سه تکرار در گروه اصلاح و بیوتکنولوژی گیاهی دانشگاه ارومیه به اجرا در آمد. عامل اول شامل 70 رگه درونزاد نوترکیب آفتابگردان حاصل از تلاقی PAC2 (به عنوان والد مادری) و RHA266 (به عنوان والد پدری) به همراه والدین و عامل دوم سطوح مختلف تنش شوری شامل صفر، 2، 4، 6 و 8 دسیزیمنسبرمتر بودند. نتایج تجزیه واریانس نشان داد که بین سطوح مختلف شوری و رگه های خالص و برای هر دو صفت مورد مطالعه تفاوت معنی دار در سطح احتمال یک درصد وجود دارد و اثر متقابل رگه و شوری نیز معنیدار است. وراثت پذیری برای درصد جوانه زنی 14 درصد و برای سرعت جوانه زنی 20 درصد برآورد شد. مکانیابی ژنها با استفاده از نقشه پیوستگی شامل 221 نشانگر SSR/SNP با متوسط فاصله 7/44 سانتی مورگان بین نشانگرها انجام گرفت. در سطوح مختلف تنش شوری، برای صفت درصد جوانه زنی QTL 12 و برای صفت سرعت جوانه زنی 22 QTL شناسایی شد. درصد تغییرات فنوتیپی توجیه شده توسط QTLها برای صفات مورد مطالعه بین 2/04% تا 67/61% متغییر بود. در این مطالعه، QTLهای salt2.PG.13.1، salt2.PGS.2.1، salt2.GR.1.1، salt4.GR.9.1، salt6.GR.10.1 و salt8.GR.6.1 دارای بیشترین ضریب تغییرات فنوتیپی میباشند. نتایج این تحقیق بیانگر وجود QTLهای غیر اختصاصی (هم مکان) برای صفات مورد مطالعه است که این امر اهمیت زیادی در به نژادی گیاهی داشته و گزینش همزمان چندین صفت را امکانپذیر میسازد. | ||
| کلیدواژهها | ||
| آفتابگردان؛ درصد جوانهزنی؛ سرعت جوانهزنی؛ نقشه پیوستگی؛ QTL | ||
| عنوان مقاله [English] | ||
| Mapping genes controlling percentage and rate of germination in sunflower under salinity stress conditions | ||
| نویسندگان [English] | ||
| F. Morsali Aghajari1؛ R. Darvishzadeh2؛ H. Hatami Maleki3 | ||
| 1M.Sc. student in Plant Breeding, Department of Plant Breeding and Biotechnology, Faculty of Agriculture, Urmia University, Urmia, Iran. | ||
| 2Associate professor, Department of Plant Breeding and Biotechnology, Faculty of Agriculture, Urmia University, Urmia, Iran. | ||
| 3Department of Agronomy and Plant Breeding, Faculty of Agriculture, University of Maragheh, Maragheh, Iran | ||
| چکیده [English] | ||
| Salt stress is one of the most serious limiting factors for crop growth and production. In order to study the effect of salinity stress on the percentage and rate of germination of sunflower seeds and localization of genes controlling the traits in sunflower genome, a factorial experiment in a completely randomized design with three replications were conducted in Department of Plant Breeding and Biotechnology, Urmia University. The first factor was 70 recombinant inbred lines (RILs) of sunflower derived from the cross PAC2 (female parent) × RHA266 (male parent) together with parents and the second factor was salinity stress levels including 0, 2, 4, 6 and 8 dS/m. The results of analysis of variance revealed statistically significant differences among RILs and salinity levels based on two studied traits in 1% probability level and also significant interaction of Line by Salt stress. Heritability for germination rate and percentage was estimated 20% and 14%, respectively. Mapping of genes was performed using constructed SSR/SNP linkage map including 221 markers with average distance of 7.44 CM between markers. In several salinity levels, 22 QTLs for germination rate and 12 QTLs for germination percentage were detected. The effects of detected QTLs were varied between 2.04% to 67.61%. In this study, QTLs including salt2.PGS.13.1, salt2.PGS.2.1, salt2.GR.1.1, salt4.GR.9.1, salt6.GR.10.1 and salt8.GR.6.1 exhibited maximum phenotypic coefficient of variation. The results of this study revealed some non-specific QTLs (co-localized) for studied charactristics which are valuable in plant breeding programs and make it possible to have simultaneous selection for several charactristics. | ||
| کلیدواژهها [English] | ||
| flower, percentage of germination, germination rate, linkage map, QTL | ||
| مراجع | ||
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Abdi, N., R. Darvishzadeh, M. Jafari, A. Pirzad and P. Haddadi. 2012. Genetic analysis and QTL mapping of agro-morphological traits in sunflower (Helianthus annuus L.) under two contrasting water treatment conditions. Plant Omics J. 5: 149-158. Abdi, N., R. Darvishzadeh, H. Hatami Maleki, P. Haddadi and A. Sarrafi. 2013. Identification of quantitative trait loci for relative water content and chlorophyll concentration traits in recombinant inbred lines of sunflower (Helianthus annuus L.) under well-watered and water-stressed conditions. Zemdirbyste-Agriculture 100: 159-166. Akbari Moghaddam, H., M. Galavi, A. Ghanbari and N. Panjehkeh. 2011. Salinity effects on seed germinationand seedling growth of bread wheat cultivars. Trakia J. Sci. 9: 43-50. Allinne, C., P. Maury, A. Sarrafi and P. Grieu. 2009. Genetic control of physiological traits associated to low temperature growth in sunflower under early sowing conditions. Plant Sci. 177: 349-359. Amouzadeh, M., R. Darvishzadeh, P. Haddadi, B. Aabdollahi Mandoulakani and Y. Rezaee Danesh. 2013. Genetic analysis of partial resistance to basal stem rot (Sclerotinia sclerotiorum) in sunflower. Genetika 3: 737-748. Ashraf, M. and M.R. Foolad. 2013. Crop breeding for salt tolerance in the era of molecular markers and marker-assisted selection. Plant Breed. 132: 10-20. Basten, C.J., B.S. Weir and Z.B. Zeng. 2002. QTL cartographer, version 1.16. Department of Statistics, North Carolina State University: Raleigh, NC, USA. Bajji, M., J.M. Kinetand S. Lutts. 2002. Osmotic and ionic effects of NaCl on germination, early seedling growth,and ion content of Atriplex halimus (Chenopodiaceae). Can. J. Bot. 80: 297-304. Bert, P.F., I. Jouan, D. Tourvieille de Labrouhe, F. Serre, P. Nicolas and F. Vear. 2002. Comparative genetic analysis of quantitative traits in sunflower (Helianthus annuus L.). 1. Characterisation of QTL involved in resistance to Sclerotinia sclerotiorum and Diaporthe helianthi. Theor. Appl. Genet.105: 985-993. 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Genetic control of physiological traits associated to low temperature growth in sunflower under early sowing conditions. Plant Sci. 177: 349-359. Amouzadeh, M., R. Darvishzadeh, P. Haddadi, B. Aabdollahi Mandoulakani and Y. Rezaee Danesh. 2013. Genetic analysis of partial resistance to basal stem rot (Sclerotinia sclerotiorum) in sunflower. Genetika 3: 737-748. Ashraf, M. and M.R. Foolad. 2013. Crop breeding for salt tolerance in the era of molecular markers and marker-assisted selection. Plant Breed. 132: 10-20. Basten, C.J., B.S. Weir and Z.B. Zeng. 2002. QTL cartographer, version 1.16. Department of Statistics, North Carolina State University: Raleigh, NC, USA. Bajji, M., J.M. Kinetand S. Lutts. 2002. Osmotic and ionic effects of NaCl on germination, early seedling growth,and ion content of Atriplex halimus (Chenopodiaceae). Can. J. Bot. 80: 297-304. Bert, P.F., I. Jouan, D. Tourvieille de Labrouhe, F. Serre, P. Nicolas and F. Vear. 2002. Comparative genetic analysis of quantitative traits in sunflower (Helianthus annuus L.). 1. Characterisation of QTL involved in resistance to Sclerotinia sclerotiorum and Diaporthe helianthi. Theor. Appl. Genet.105: 985-993. Bert, P.F., I. Jouan,G. Dechamp-Guillaume, F. Serre, J. Philippon, P. Nicolas and F. Vear. 2004. Comparative genetic analysis of quantitative traits in sunflower (Helianthus annuus L.) 3. Characterisation of QTL involved in resistance to Sclerotinia sclerotiorum and Phoma macdonaldi. Theor. Appl. Genet.109: 865-874. Bybordi, A. and J. Tabatabaei. 2009. Effect of salinity stress on germination and seedling properties in canola cultivars (Brassica napus L.). Not. Bot. Hortic. Agrobot. Cluj-Na. 37: 71-76. Broumand Rezazadeh, Z. and A. Koochaki. 2005. Germination response of Ajowan, Fennel and Dill to osmotic potential of sodium chloride and polyethylene glycol 6000 in different temperature regimes. Iran. J. Field Crops Res. 320: 207-217. (In Persian, with English abstract). Churchill, G.A. and R.W. Doerge. 1994. Empirical threshold values for quantitative trait mapping. Genetics 138: 963-971. Collard, B.C.Y., M.Z.Z. Jahufer, J.B. Brouwer and E.C.K. Pang. 2005. An introduction to markers, quantitative trait loci (QTL) mapping and marker-assisted selection for crop improvement: The basic concepts. Euphytica 142: 169-196. Collard, B.C.Y. and D.J. Mackill. 2008. Marker assisted selection: An approach for precision plant breeding in the twenty first century. Philos Trans R Soc Lond B Biol Sci. 363: 557-572. Cui, K.H., S.B. Peng, Y.Z. Xing, C.G. Xu, S.B. Yu and Q. Zhang. 2002. Molecular dissection of seedling vigour and associated physiological traits in rice. Theor. Appl. Genet. 105: 745-753. Darvishzadeh, R., S. Poormohammad Kiani, G. Dechamp-Guillaume, L. Gentzbittel and A. Sarrafi. 2007. Quantitative trait loci associated with isolate specific and isolate nonspecific partial resistance to Phoma macdonaldii in sunflower. Plant Pathol. 56: 855-861. Davar, R., R. Darvishzadeh, A. Majd, Y. Gousta and A. Sarrafi. 2010. QTL mapping of partial resistance to basal stem rot in sunflower using recombinant inbred lines. Phytopathol. Mediterr. 49: 330-341. Davar, R., A. Majd, R. Darvishzadeh and A. Sarrafi. 2011.Mapping quantitative trait loci for seedling vigour and development in sunflower (Helianthus annuus L.) using recombinant inbred line population. Plant Omics J. 4:418-427. Ebrahimi, A. and A. Sarrafi. 2012. Genetic variability and identification of markers associated withgermination parameters in gamma-irradiation induced mutants of sunflower under water stress condition. Iran. J. Genet. Plant Breed. 1: 1-8. Ghoulam, C. and K. Fares. 2001. Effect of salinity on seed germination and early seedling growth of sugar beet(Beta vulgaris L.). Seed Sci. Technol. 29: 357-364. Haddadi, P., A. Ebrahimi, N.B. Langlade, B. Yazdi-Samadi, M. Berger, A. Calmon, M.R. Naghavi, P. Vincourt and A. Sarrafi. 2012. 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