کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5789131 | 1414296 | 2015 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Deletion of a DnaK protein gene causes seedling green-revertible albino by retarding chloroplast development in rice
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Green-revertible albino mutants are important sources for studying chloroplast structure, chloroplast development, chlorophyll biosynthesis, and plant photosynthesis. In the present study, we characterized a green-revertible albino mutant gra(k), which was obtained from the tissue-cultured rice Kitaake. The mutant gra(k) exhibited albino on its first three leaves. The leaf color started to turn green at the four-leaf stage. The chlorophyll contents were deeply reduced at the seedling stage, and the chloroplast development was delayed in gra(k). The green-revertible albino (gra) phenotype of the mutant gra(k) was temperature dependent. The main agronomic traits, including plant height, tilling number per plant, seed setting rate, and thousand-grain weight, slightly decreased in gra(k) comparing to those in the wild-type Kitaake. Genetic analysis showed that the gra phenotype was controlled by a single recessive nucleic gene. By using 5,168 recessive F2 individuals derived from the cross of gra(k) Ã Jodan, the locus of the gene Gra(k) was delimited in a DNA region of 200Â kb between the makers B-31 and P11 on chromosome 5. Sequencing analysis indicated that the three functionally annotated genes, LOC_Os05g23700, LOC_Os05g23720, and LOC_Os05g23740, were all deleted in the 200Â kb region in the mutant gra(k). Transgenic test revealed that the gra(k) plants over-expressing LOC_Os05g23740CDS were restored to normal green as the wild-type Kitaake. Our results proved that the deletion of the DnaK protein gene LOC_Os05g23740 (encoding the chaperon protein OsHsp70CP1) led to the gra phenotype in the mutant gra(k)
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Science Bulletin - Volume 60, Issue 23, December 2015, Pages 2054-2058
Journal: Science Bulletin - Volume 60, Issue 23, December 2015, Pages 2054-2058
نویسندگان
Weitao Li, Junjie Yin, Bangquan Ye, Chunfang Peng, Qinshu Cheng, Jing Wang, Can Yuan, Heng Yin, Zhixiong Chen, Min He, Yuping Wang, Weilan Chen, Jichun Wang, Bingtian Ma, Peng Qin, Shigui Li, Xuewei Chen,