| تعداد نشریات | 285 |
| تعداد نشریات سازمان | 83 |
| تعداد شمارهها | 3,094 |
| تعداد مقالات | 34,533 |
| تعداد مشاهده مقاله | 49,381,142 |
| تعداد دریافت فایل اصل مقاله | 79,831,878 |
شناسایی لاینهای اعاده کننده باروری در برنج برای سیتوپلاسم نرعقیم WA | ||
| پژوهش های کاربردی زراعی | ||
| دوره 34، شماره 2 - شماره پیاپی 131، شهریور 1400، صفحه 13-28 اصل مقاله (588.79 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22092/aj.2021.352995.1522 | ||
| نویسندگان | ||
| عارف میرزاباباپور امیری1؛ غفار کیانی* 2؛ سیدکمال کاظمی تبار3 | ||
| 1، دانش آموخته اصلاح نباتات، دانشگاه علوم کشاورزی و منابع طبیعی ساری، arefyazdah@gmail.com، | ||
| 2دانشیار گروه اصلاح نباتات، دانشگاه علوم کشاورزی و منابع طبیعی ساری | ||
| 3گروه اصلاح نباتات | ||
| چکیده | ||
| به منظور بررسی صفات زراعی 16 ژنوتیپ جدید اعاده کننده باروری در برنج و همچنین ارزیابی ژنوم هستهای آنها، آزمایشی در مزرعه پژوهشی دانشگاه علوم کشاورزی و منابع طبیعی ساری در طی سالهای 97 و 98 انجام گرفت. در سال اول صفات زراعی ژنوتیپهای اعاده کننده باروری از جمله ارتفاع بوته، تعداد پنجه، طول خوشه، تعداد دانه، تعداد دانه پر، طول دانه، قطر دانه، وزن هزار دانه و عملکرد دانه اندازهگیری و این ژنوتیپها با پایه نرعقیم نداA تلاقی داده شدند. در سال دوم هیبریدهای حاصل به همراه والدین خود در مزرعه کشت و قابلیت اعاده باروری لاینها بررسی شد. در مرحله گلدهی، دانههای گردهی بوتههای هیبرید با محلول یدید یدور پتاسیم یک درصد رنگ آمیزی و درصد باروری آنها مورد بررسی قرار گرفت. همچنین میزان باروری خوشه آنها نیز در مرحله رسیدگی ارزیابی شد. نتایج ارزیابیها نشان داد که باروری دانه گرده و خوشه هیبریدهای NedaA/K7، NedaA/K12 و NedaA/K16 بیش از 80 درصد بوده است و مقادیر هتروزیس برای عملکرد دانه در این هیبریدها به ترتیب 47/93، 95/98 و 12/26 درصد بود. بنابراین با توجه به درصد باروری بالای دانه گرده و خوشه و نیز مقادیر بالای عملکرد، 3 لاین K7، K12 و K16 میتوانند به عنوان منابع جدید اعاده کننده باروری در تکنولوژی تولید بذر هیبرید در برنج مورد استفاده قرار گیرند. | ||
| کلیدواژهها | ||
| باروری خوشه؛ برنج هیبرید؛ صفات زراعی؛ لاین برگرداننده | ||
| عنوان مقاله [English] | ||
| Identification of fertility restorer lines in rice for WA-male sterile cytoplasm | ||
| نویسندگان [English] | ||
| Aref Mirzababapour Amiri1؛ Ghaffar Kiani2؛ Seyed Kamal Kazemitabar3 | ||
| 1Former MSc Student, Sari Agricultural Sciences and Natural Resources University | ||
| 2Department of Plant Breeding, Sari Agricultural Sciences and Natural Resources University | ||
| 3Plant Breeding | ||
| چکیده [English] | ||
| Introduction Rice is the staple food consumed by almost half of the population in Asia and the world. Rice is a self-fertile plant with various varieties. Due to the decrease in the area where rice is cultivated, there is a great need to increase yield performance in rice per unit area. Heterosis is a phenomenon that reveals advantages over its parents in F1 hybrids resulting from the crossbreeding of various parents (Saleem, 2008). The two main methods for producing hybrid rice are the three-line system and the two-line system. These two methods are different due to the use of two different types of male sterile lines. In the production of F1 hybrids, CMS lines are crossed with fertility restorer lines. The objectives of this study were to evaluate the new fertility restorer lines in terms of important crop characteristics and determine the fertility percentage of pollen grains and evaluate the heterosis rate of the resulting hybrids. Materials and Methods The research materials used in this study included 16 new restorer lines as paternal parents and NedaA cytoplasmic male sterility lines as maternal parent as well as its fertility maintainer lines NedaB. In the first year, the agronomic characteristics including plant height (cm), number of fertile tiller, panicle length (cm), number of grains, number of filled grains, grain length (millimeters), grain diameter (millimeters), weight of one thousand grains (grams) and grain yield (grams) were recorded and at the flowering stage, all fertility restorer lines were crossed with NedaA CMS line. Among the available hybrids, 7 F1 genotypes were cultivated with their parents in the second year. After flowering, iodine-potassium iodide (I₂/KI) solution was used to perform fertility assessment of pollen grains in F1 hybrids (Gao et al, 2011). At maturity stage seed setting performance of F1 genotypes recorded. Analysis of variance and mean comparisons using Duncan test were made using SPSS software. Grouping of genotypes was made using cluster analysis through Ward method. Results and Discussion Mean comparison of genotypes showed that K14, K3, K4 and K11 lines had the highest average height, respectively, which was a positive feature for paternal parents (pollinators) as restorer genotypes. In terms of number of fertile tiller, K4, K7 and K1 restorers accounted for the largest number of fertile tillers, respectively, and K4 genotype was superior to other genotypes in terms of panicle length. Researchers identified the fertile tillers, panicle length, and number of filled grains as the most contributing traits to yield. Lines K16, K12 and K4 had the highest average grain length per panicle. This feature is one of the important traits of marketing in Iran. Lines K12, K4, K3 and K2 had the highest weight of one thousand grains, respectively. Cluster analysis classified the genotypes into two main categories (Figure 1). The genotypes in same group were more genetically related than the genotypes in other branches, hence, cluster analysis can be used as a tool to select parental lines in hybridization programs (Kiani &Nematzadeh, 2013). The first group included 11 genotypes (68.75%) that were below average in terms of all traits except grain diameter. 5 genotypes (31.25%) were placed in the second cluster. The K12 and K16 genotypes were included in this group as two successful parents in cross with the NedaA male sterile genome. The fertility rate of hybrid pollen grains ranged from 41.71 to 95.35 percent. NedaA/K7, NedaA/K12 and NedaA/K16 hybrids had more than 80% fertility rate, which indicated the suitability of K7, K12 and K16 restorer lines for crossing with Neda A. All the promising hybrids outperformed their paternal parents in terms of grain length. The highest 1000 grain weight was observed in NedaA/K16 hybrid and the highest yield was observed in NedaA/K7. Heterobeltiosis of the NedaA/K7 and NedaA/K12 genotypes were 93.47% and 98.95%, respectively and the NedaA/K16 genotype showed 26.22% of Heterosis. Conclusion Three genotypes (K7, K12 and K16) were found to be desirable fertility restorer lines for NedaA due to their beneficial characteristics as well as representing more than 80 percent fertility percentage of pollen grains and seed setting in their panicles. These lines could be used as new sources of fertility restoration for WA cytoplasmic sterility system and promote hybrid seed technology in Iran. | ||
| کلیدواژهها [English] | ||
| Agronomic traits, Hybrid rice, Panicle fertility, Restorer line | ||
| مراجع | ||
|
Agricultural Statistics, Volume 1, Crops, Crop Year 2019. Ministry of Jihad Agriculture, Deputy of Planning and Economy, Information and Communication Technology Center. Akter, A., Hasan, M.J., Begum, H., Kulsum, M.U., and Hossain, M.K. 2010. Combining ability analysis in rice (Oryza sativa L.). Bangladesh Journal of Plant Breeding and Genetics, 23(2):7-14. Bagheri, N. A., and Babaeian-Jelodar, N.A. 2010. Heterosis and combining ability analysis for yield and related- yield traits in hybrid rice. International Journal of Biology, 2(2): 222 – 231. Bakhshipour, S., Gazanchian, A., Mohaddesi, A., Nahvi, M., and Razeghi-Jadid, R. 2012. Study the relationship between agronomic and morphological traits in the promising rice lines and their grouping by multivariate statistical methods. Journal of Agroecology, 7(4). (In Persian with English Abstract). Dash, A.K., Samal, R., Gundimeda, J.N.R., Subudhi, H.N., and Ravi, N.R. 2018. Bioprospecting for fertility restoration genes in wild relatives and land races of rice from different geographic regions. Plant Genetic Resources, 16(1):89-93. Eidi Kohnaki, M., Kiani, G., and Nematzadeh, G. 2015. Morphological and molecular selection of fertility restorer gene (s) in segregating populations of rice. Journal of Plant Productions (Agronomy, Breeding and Horticulture), 38(2): 89-98. Elshenawy, M.M., Anis, G.B., Elgamal, W.H., and Ramadan, E.A.E. 2018. Genetic basis of combining ability for various quantitative traits using CMS lines of rice (Oryza sativa L.). Contemporary Agriculture, 67(2):125-135. Gao, L., Xia, Z., Jiang, G., Peng, H., Zhao, X., and Zhai, W. 2011. Generation of marker‐free, bacterial blight‐resistant transgenic sterile line and hybrid rice with Xa21. Plant Breeding, 130(4):438-443. Huang, J.Z., Zhi-Guo, E., Zhang, H.L., and Shu, Q.Y. 2014. Workable male sterility systems for hybrid rice: genetics, biochemistry, molecular biology, and utilization. Rice, 7(1):13. Huang, X., Yang, S., Gong, J., Zhao, Y., Feng, Q., Gong, H., Li, W., Zhan, Q., Cheng, B., Xia, J., and Chen, N. 2015. Genomic analysis of hybrid rice varieties reveals numerous superior alleles that contribute to heterosis. Nature Communications, 6:6258. Kiani, G., and Nematzadeh, G.A. 2013. Genetic diversity of fertility restoring lines in rice based on morphological characteristics. Applied Field Crops Research (Pajouhesh & Sazandegi), 25(4):122-130. (In Persian with English Abstract). Lonbani, M., and Arzani, A. 2011. Morpho-physiological traits associated with terminal drought-stress tolerance in triticale and wheat. Agronomy Research, 9(1-2): 315-329. Mohammadi, O., Kiani, G., Bagheri., N. 2019. Study of combining ability of rice cytoplasmic male sterility (CMS) lines for hybrid seed production. Plant Production Technology, 19(1):53-65. (In Persian with English Abstract). Nematzadeh, G.A., Ali, A.J., Sattari, M., Valizadeh, A., Alinejad, E., and Nouri, M.Z. 2006. Relationship between different allogamic associated trait characteristics of the five newly developed cytoplasmic male sterile (CMS) lines in rice. Journal of Central European Agriculture, 7(1): 49-56. Nematzadeh, G.A., and Sattari, M. 2003. A study of nucleus genome of some high yielding rice (Oryza sativa L.) varieties for application in hybrid rice technology. Iranian Journal of Agricultural Sciences, 34(1):213-219. (In Persian with English Abstract). Perraju, P., and Sarma, N.P. 1999. Combining ability studies in rice. Oryza, 36(3):248-249. Saleem, M.Y. 2008. Genetic analysis of basmati rice (Oryza sativa L.).Ph. D. Dissertation, Bahauddin Zakariya University, Multan, Pakistan. Tan, Y., Sun, X., Fang, B., Yu, D., Sun, Z., Wang, W., Sheng, X., Yin, X., Liu, L., Zhang, Y., and Duan, M. 2018. Conversion of a rice CMS maintainer into a photo-or thermo-sensitive genetic male sterile line. Molecular Breeding, 38(5):56. Tarang, A., and Bakhshipour, S. 2015. Yield and agronomic traits of hybrid rice promising lines and cultivars. Agroecology Journal, 11(3):11-21. (In Persian with English Abstract). Thippeswamy, S., Chandramohan, Y., Srinivas, B., and Padmaja, D. 2016. Selection of diverse parental lines for heterotic hybrid development in rice (Oryza sativa L.). Sabrao Journal of Breeding & Genetics, 48(3). Watanesk, O., 1993. Heterosis and combining ability evaluation of cytoplasmic male sterile (A) lines and restorer (R) lines. International Rice Research Notes, 10:5-6. Xangsayasane, P., Xie, F., Hernandez, J.E., and Boirromeo, T.H. 2010. Hybrid rice heterosis and genetic diversity of IRRI and Lao rice. Field Crops Research, 117(1):18-23. | ||
|
آمار تعداد مشاهده مقاله: 2,958 تعداد دریافت فایل اصل مقاله: 433 |
||