Construction of chromosomal segment substitution lines and genetic dissection of introgressed segments associated with yield determination in the parents of a super-hybrid rice

2015 ◽  
Vol 135 (1) ◽  
pp. 63-72 ◽  
Author(s):  
Xi Liu ◽  
Zhigang Zhao ◽  
Linglong Liu ◽  
Yinghui Xiao ◽  
Yunlu Tian ◽  
...  
Keyword(s):  
Hybrid Rice ◽  
Chromosomal Segment ◽  
Genetic Dissection ◽  
Substitution Lines ◽  
Super Hybrid Rice ◽  
Yield Determination ◽  
Segment Substitution

Genetic dissection of leaf-related traits using 156 chromosomal segment substitution lines

2015 ◽  
Vol 58 (6) ◽  
pp. 402-410 ◽  
Author(s):  
Xi Liu ◽  
Linglong Liu ◽  
Yinhui Xiao ◽  
Shijia Liu ◽  
Yunlu Tian ◽  
...  
Keyword(s):  
Chromosomal Segment ◽  
Genetic Dissection ◽  
Substitution Lines ◽  
Segment Substitution

scholarly journals Quantitative Trait Loci Mapping for Rice Yield-Related Traits Using Chromosomal Segment Substitution Lines

Rice Science ◽  
2019 ◽  
Vol 26 (5) ◽  
pp. 261-264 ◽  
Author(s):  
L.I. Zihe ◽  
Aamir Riaz ◽  
Zhang Yingxin ◽  
Galal Bakr Anis ◽  
Zhu Aike ◽  
...  
Keyword(s):  
Quantitative Trait Loci ◽  
Quantitative Trait ◽  
Rice Yield ◽  
Chromosomal Segment ◽  
Quantitative Trait Loci Mapping ◽  
Substitution Lines ◽  
Trait Loci ◽  
Segment Substitution

scholarly journals QTL Analysis Based on A Rice Short-Wide Grain CSSL-Z414 and Substitution Mapping of qGL11 and qGW5

2021 ◽  
Author(s):  
Juan Li ◽  
Hongxia Yang ◽  
Guangyi Xu ◽  
Keli Deng ◽  
Jinjin Yu ◽  
...  
Keyword(s):  
Complex Traits ◽  
Hybrid Rice ◽  
Brown Rice ◽  
Specific Function ◽  
Substitution Lines ◽  
Rice Varieties ◽  
Grain Length ◽  
Substitution Mapping ◽  
Segment Substitution ◽  
Novel Allele

Abstract Background: Most of rice agronomic traits as grain length etc. are complex traits controlled by multiple genes. Chromosome segment substitution lines (CSSLs) are ideal materials for dissecting and studying of these complex traits. Results: We developed a novel rice short-wide grain CSSL, Z414, deriving from progeny of the recipient parent Xihui 18 (an indica restorer line) and the donor parent Huhan 3 (a japonica cultivar). Z414 contained 4 substitution segments (average length was 3.04 Mb). Compared with Xihui 18, Z414 displayed seven significantly different traits as grain length, width and weight, chalkiness degree, brown rice rate etc. Then, 8 quantitative trait loci (QTLs) were found responding these difference traits by F2 population from Xihui 18/Z414. Among them, 6 QTLs (qPL3, qGW5, qGL11, qRLW5, qRLW11, qGWT5) could be verified by novel developed single segment substitution lines (SSSLs, S1-S6). In addition, 4 QTLs (qGL3, qGL5, qCD3 and qCD5) were novel detected by S1 and S5. Thus, the short–wide grain of Z414 was responded by qGL11, qGL3, qGL5, and qGW5. Then, qGL11 and qGW5 were delimited within intervals of 0.405 and 1.14 Mb on chromosomes 11 and 5, respectively, by substitution mapping. Again by sequencing, qRT-PCR and cell morphology analysis, qGW5 should be a novel allele of GS5 and qGL11 is novel QTL encoding CycT1;3, whose specific function of regulating grain length was still unknown. Finally, pyramid of qGL3 (a=0.22) and qGL11 (a=-0.19) displayed qGL11 epistatic to qGL3. In addition, novel S1 and D2 exhibited different grain sizes and lower chalkiness degree. They are potential to be directly used in breeding hybrid rice varieties.Conclusions: We constructed a novel rice short–wide grain CSSL-Z414 with 4 substitution segments based on the genetic backgrounds of Xihui 18. The broad grain of Z414 was controlled by qGW5, which should be a novel allele of GS5. The short grain of Z414 was controlled by qGL11, qGL3, and qGL5, and qGL11 is a novel QTL encoding CycT1;3, whose specific function of regulating grain length was still unknown, and qGL11 is epistatic to qGL3. Novel S1 and D2 are potential in hybrid rice varieties.

scholarly journals Variation in leaf anatomical characteristics in chromosomal segment substitution lines of KDML105 carrying drought tolerant QTL segments

ScienceAsia ◽  
2018 ◽  
Vol 44 (3) ◽  
pp. 197 ◽  
Author(s):  
Charanya Kulya ◽  
Jonaliza L. Siangliw ◽  
Theerayut Toojinda ◽  
Watanachai Lontom ◽  
Wattana Pattanagul ◽  
...  
Keyword(s):  
Chromosomal Segment ◽  
Substitution Lines ◽  
Anatomical Characteristics ◽  
Drought Tolerant ◽  
Segment Substitution ◽  
Leaf Anatomical Characteristics

scholarly journals Detection of Chromosomal Regions Affecting Iron Concentration in Rice Shoots Subjected to Excess Ferrous Iron Using Chromosomal Segment Substitution Lines betweenJaponicaandIndica

2012 ◽  
Vol 15 (3) ◽  
pp. 183-191 ◽  
Author(s):  
Akari Fukuda ◽  
Hiroyuki Shiratsuchi ◽  
Akira Fukushima ◽  
Hiromichi Yamaguchi ◽  
Hideyuki Mochida ◽  
...  
Keyword(s):  
Ferrous Iron ◽  
Iron Concentration ◽  
Chromosomal Segment ◽  
Substitution Lines ◽  
Segment Substitution
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