کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
11029380 | 1646534 | 2018 | 38 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Rice SDSFL1 plays a critical role in the regulation of plant structure through the control of different phytohormones and altered cell structure
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کلمات کلیدی
UTRABAintracellular CO2 concentrationStrigolactonePaclobutrazolPACIAAInDelflag leaf lengthEMSChlqRT-PCRArginine - آرژنین ethylmethane sulfonate - اتیل متان سولفوناتArg - ارگabscisic acid - اسید آبسزیکSalicylic acid - اسید سالیسیلیکindole 3-acetic acid - اسید هندل 3-استیکTem - این استBrassinosteroid - براسین استروئیدRice (Oryza sativa L.) - برنج (Oryza sativa L.)Tryptophan - تریپتوفانTRY - تلاش کردنbase pair - جفت پایهinsertion/deletion - درج / حذفChlorophyll - سبزینه یا کلروفیلPhotosynthetic rate - سرعت فتوسنتزیSEM - مدل معادلات ساختاری / میکروسکوپ الکترونی روبشیuntranslated region - منطقه غیر ترجمهscanning electron microscope - میکروسکوپ الکترونی اسکنTransmission electron microscopy - میکروسکوپ الکترونی عبوریtranspiration rate - نرخ تنفسStomatal conductance - هدایت گرمایشیPlant hormones - هورمون های گیاهیquantitative real-time polymerase chain reaction - واکنش زنجیره ای پلیمراز کمی زمان واقعی استMap-based cloning - کلونینگ مبتنی بر نقشهkilobase - کیلوبایزGibberellins - گیببرلینز
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم زراعت و اصلاح نباتات
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Semi-dwarfism is one of the most important agronomic traits for many cereal crops. In the present study, a mutant with semi-dwarf and short flag leaf 1, sdsfl1, was identified and characterized. The sdsfl1 mutant demonstrated some distinguished structural alterations, including shorter plant height and flag leaf length, increased tiller numbers and flag leaf width, and decreased panicle length compared with those of wild type (WT). Genetic analysis suggested that the mutant traits were completely controlled by a single recessive gene. The SDSFL1 gene was mapped to the long arm of chromosome 3 within a region of 44.6âkb between InDel markers A3P8.3 and A3P8.4. The DNA sequence analysis revealed that there was only a T to C substitution in the coding region of LOC_Os03g63970, resulting in the substitution of Tryptophan (Try) to Arginine (Arg) and encoding a GA 20 oxidase 1 protein of 372 amino acid residues. Photosynthesis analysis showed that the photosynthetic rate (Pn), stomatal conductance (Gs), and intercellular CO2 concentration (Ci) were significantly increased in sdsfl1. Chlorophyll a (Chl a), total Chl, and carotenoid contents were significantly increased in sdsfl1 compared with those in WT. sdsfl1 carried a reduced level of GA3 but reacted to exogenously applied gibberellins (GA). Moreover, the levels of abscisic acid (ABA), indole 3-acetic acid (IAA), and salicylic acid (SA) were notably improved in sdsfl1, whereas there was no noteworthy change in jasmonic acid (JA). The results thus offer a visible foundation for the molecular and physiological analysis of the SDSFL1 gene, which might participate in various functional pathways for controlling plant height and leaf length in rice breeding.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Plant Physiology - Volume 231, December 2018, Pages 110-123
Journal: Journal of Plant Physiology - Volume 231, December 2018, Pages 110-123
نویسندگان
Md. Alamin, Dong-Dong Zeng, Most. Humaira Sultana, Ran Qin, Xiao-Li Jin, Chun-Hai Shi,