Genetic Analysis and Fine Mapping of a Novel Thread-like Leaf 1 (tll1) Mutant in Rice

doi:10.11983/CBB10068

Chinese Bulletin of Botany ›› 2010, Vol. 45 ›› Issue (06): 654-661.DOI: 10.11983/CBB10068 cstr: 32102.14.j.issn.1674-3466.2010.06.002

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Genetic Analysis and Fine Mapping of a Novel Thread-like Leaf 1 (tll1) Mutant in Rice

Peina Ju^1,2, Yunxia Fang¹, Guoxing Zou^1,3, Youlin Peng¹, Chuan Sun¹, Jiang Hu¹, Guojun Dong¹, Dali Zeng¹, Longbiao Guo¹, Guangheng Zhang¹, Zhenyu Gao¹, Qian Qian^1*

¹State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 310006, China;

²College of Life and Environment Science, Hangzhou Normal University, Hangzhou 310016, China;

³Rice Research Institute, Jiangxi Academy of Agricultural Sciences, Nanchang 330200, China

Received:2010-03-10 Revised:2010-09-03 Online:2010-11-01 Published:2010-09-20
Contact: Qian Qian

Abstract

Abstract: We characterized a new dwarf mutant with thread-like leaf, designated as thread-like leaf 1 (tll1), derived from japonica cultivar Nipponbare with ethylmethane sulfonate (EMS) treatment. tll1 was crossed reciprocally with indica cultivar Nanjing 6, Zhefu 802 and 9311. Genetic analysis demonstrated that the mutant was controlled by one recessive nuclear gene. It was mapped between two simple sequence repeat makers RM247 and RM101 on chromosome 12 in rice. Seven polymorphic sequence tagged site (STS) markers were developed from the published genomic sequences of Nipponbare and 9311. Fine mapping of the TLL1 gene located it to a 94.3-kb physical region between the STS markers FL13 and FL14, which will facilitate map-based cloning and functional analysis of the gene.

Key words: genetic analysis, leaf development, mapping, rice, thread-like leaf

Peina Ju, Yunxia Fang, Guoxing Zou, Youlin Peng, Chuan Sun, Jiang Hu, Guojun Dong, Dali Zeng, Longbiao Guo, Guangheng Zhang, Zhenyu Gao, Qian Qian. Genetic Analysis and Fine Mapping of a Novel Thread-like Leaf 1 (tll1) Mutant in Rice[J]. Chinese Bulletin of Botany, 2010, 45(06): 654-661.

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Genetic Analysis and Fine Mapping of a Novel Thread-like Leaf 1 (tll1) Mutant in Rice

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