A major quantitative trait locus conferring resistance to fusarium wilt was detected in cucumber by using recombinant inbred lines

2014 ◽  
Vol 34 (4) ◽  
pp. 1805-1815 ◽  
Author(s):  
Sheng-ping Zhang ◽  
Han Miao ◽  
Yu-hong Yang ◽  
Bing-yan Xie ◽  
Ye Wang ◽  
...  
Keyword(s):  
Quantitative Trait Locus ◽  
Fusarium Wilt ◽  
Quantitative Trait ◽  
Recombinant Inbred ◽  
Major Quantitative Trait Locus ◽  
Recombinant Inbred Lines ◽  
Inbred Lines ◽  
Trait Locus

scholarly journals Quantitative trait locus analysis of saturated fatty acids in a population of recombinant inbred lines of soybean

2012 ◽  
Vol 30 (2) ◽  
pp. 1163-1179 ◽  
Author(s):  
Xianzhi Wang ◽  
Guo-Liang Jiang ◽  
Marci Green ◽  
Roy A. Scott ◽  
David L. Hyten ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Quantitative Trait Locus ◽  
Quantitative Trait Locus Analysis ◽  
Quantitative Trait ◽  
Recombinant Inbred ◽  
Recombinant Inbred Lines ◽  
Saturated Fatty Acids ◽  
Inbred Lines ◽  
Trait Locus

scholarly journals Quantitative trait locus analysis for kernel width using maize recombinant inbred lines

2015 ◽  
Vol 14 (4) ◽  
pp. 14496-14502
Author(s):  
G.Q. Hui ◽  
G.Q. Wen ◽  
X.H. Liu ◽  
H.P. Yang ◽  
Q. Luo ◽  
...  
Keyword(s):  
Quantitative Trait Locus ◽  
Quantitative Trait Locus Analysis ◽  
Quantitative Trait ◽  
Recombinant Inbred ◽  
Recombinant Inbred Lines ◽  
Inbred Lines ◽  
Kernel Width ◽  
Trait Locus

scholarly journals Recessive Resistance Governed by a Major Quantitative Trait Locus Restricts Clover Yellow Vein Virus in Mechanically but Not Graft-Inoculated Cultivated Soybeans

2019 ◽  
Vol 32 (8) ◽  
pp. 1026-1037 ◽  
Author(s):  
Junya Abe ◽  
Yongzhi Wang ◽  
Tetsuya Yamada ◽  
Masako Sato ◽  
Takuya Ono ◽  
...  
Keyword(s):  
Quantitative Trait Locus ◽  
Quantitative Trait ◽  
Major Quantitative Trait Locus ◽  
Recombinant Inbred Lines ◽  
Systemic Infection ◽  
Yellow Vein ◽  
Systemic Spread ◽  
Clover Yellow Vein Virus ◽  
Trait Locus ◽  
Cultivated Soybean

Clover yellow vein virus (ClYVV) infects and causes disease in legume plants. However, here, we found that ClYVV isolate No. 30 (ClYVV-No.30) inefficiently multiplied or spread via cell-to-cell movement in mechanically inoculated leaves of a dozen soybean (Glycine max) cultivars and resulted in failure to spread systemically. Soybean plants also had a similar resistance phenotype against additional ClYVV isolates. In contrast, all but one of 24 tested accessions of wild soybeans (G. soja) were susceptible to ClYVV-No.30. Graft inoculation of cultivated soybean TK780 with ClYVV-No.30–infected wild soybean B01167 scion resulted in systemic infection of the cultivated soybean rootstock. This suggests that, upon mechanical inoculation, the cultivated soybean inhibits ClYVV-No.30, at infection steps prior to the systemic spread of the virus, via vascular systems. Systemic infection of all F1 plants from crossing between TK780 and B01167 and of 68 of 76 F2 plants with ClYVV-No.30 indicated recessive inheritance of the resistance. Further genetic analysis using 64 recombinant inbred lines between TK780 and B01167 detected one major quantitative trait locus, designated d-cv, for the resistance that was positioned in the linkage group D1b (chromosome 2). The mapped region on soybean genome suggests that d-cv is not an allele of the known resistance genes against soybean mosaic virus.

scholarly journals IDENTIFICATION OF A MAJOR QUANTITATIVE TRAIT LOCUS CONFERRING RICE BLAST RESISTANCE USING RECOMBINANT INBRED LINES

2013 ◽  
Vol 11 (1) ◽  
pp. 1
Author(s):  
Sobrizal Sobrizal ◽  
Masdiar Bustamam ◽  
Carkum Carkum ◽  
Ahmad Warsun ◽  
Soeranto Human ◽  
...  
Keyword(s):  
Quantitative Trait Locus ◽  
Quantitative Trait ◽  
Recombinant Inbred ◽  
Blast Resistance ◽  
Blast Disease ◽  
Chromosome 11 ◽  
Resistant Gene ◽  
Trait Locus ◽  
Ri Lines ◽  
Major Qtl

Blast disease caused by Pyricularia oryzae is one of the limiting factors for rice production world wide. The use of resistant varieties for managing blast disease is considered as the most eco-friendly approaches. However, their resistances may be broken down within a few years due to the appearance of new virulent blast races in the field. The objective of the present study was to identify the quantitative trait locus (QTL) conferring resistance to blast disease using 126 recombinant inbred (RI) lines originated from a crossing of a durably resistant upland rice genotype (Laka) and a highly susceptible rice accession cultivar (Kencana Bali). The RI population was developed through a single seed descent method from 1997 to 2004. Resistance of the RI lines was evaluated for blast in an endemic area of Sukabumi, West Java, in 2005. Disease intensity of the blast was examined following the standard evaluation system developed by the International Rice Research Institute (IRRI). At the same year the RI lines were analyzed with 134 DNA markers. Results of the study showed that one major QTL was found to be associated with blast resistance, and this QTL was located near RM2136 marker on the long arm of chromosome 11. This QTL explained 87% of the phenotypic variation with 37% additive effect. The map position of this QTL differed from that of a partial resistant gene, Pi34, identified previously on chromosome 11 in the Japanese durably resistant variety, Chubu 32. The QTL, however, was almost at the same position as that of the multiple allele-resistant gene, Pik. Therefore, an allelic test should be conducted to clarify the allelic relationship between QTL identified in this study and the Pik. The RI lines are the permanent segregating population that could be very useful for analysing phenotypic variations of important agronomic traits possibly owned by the RI lines. The major QTL identified in this study could be used as a genetic resource in improvement of rice varieties for blast resistance in Indonesia

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