Segregation distortion via male gametes in hybrids between Indica and Japonica or wide-compatibility varieties of rice (Oryza sativa L)

1992 ◽  
Vol 84-84 (7-8) ◽  
pp. 812-818 ◽  
Author(s):  
S. Y. Lin ◽  
H. Ikehashi ◽  
S. Yanagihara ◽  
A. Kawashima
Keyword(s):  
Oryza Sativa ◽  
Segregation Distortion ◽  
Oryza Sativa L ◽  
Male Gametes ◽  
Wide Compatibility

Wide compatibility in rice (Oryza sativa L.)

Euphytica ◽  
1992 ◽  
Vol 64 (1-2) ◽  
pp. 71-80 ◽  
Author(s):  
R. Vijaya Kumar ◽  
S. S. Virmani
Keyword(s):  
Oryza Sativa ◽  
Oryza Sativa L ◽  
Wide Compatibility

scholarly journals RFLP Linkage Map included the Information of Segregation Distortion in a Wide-Cross Population between Indica and Japonica Rice (Oryza sativa L.).

2000 ◽  
Vol 50 (2) ◽  
pp. 65-72 ◽  
Author(s):  
Yoshimichi Fukuta ◽  
Hideki Sasahara ◽  
Katsunori Tamura ◽  
Toshinori Fukuyama
Keyword(s):  
Oryza Sativa ◽  
Linkage Map ◽  
Segregation Distortion ◽  
Oryza Sativa L ◽  
Japonica Rice ◽  
Wide Cross

scholarly journals Mapping segregation distortion loci and quantitative trait loci for spikelet sterility in rice (Oryza sativa L.)

2005 ◽  
Vol 86 (2) ◽  
pp. 97-106 ◽  
Author(s):  
CHUNMING WANG ◽  
CHENGSONG ZHU ◽  
HUQU ZHAI ◽  
JIANMIN WAN
Keyword(s):  
Oryza Sativa ◽  
Segregation Distortion ◽  
Quantitative Trait ◽  
Oryza Sativa L ◽  
Segregation Ratio ◽  
Chromosome 8 ◽  
Spikelet Fertility ◽  
Spikelet Sterility ◽  
Multipoint Method ◽  
Two Populations

Markers with segregation ratio distortion are commonly observed in data sets used for quantitative trait locus (QTL) mapping. In this study, a multipoint method of maximum likelihood (ML) was newly developed to estimate the positions and effects of the segregation distortion loci (SDLs) in two F2 populations of rice (Oryza sativa L.), i.e. Taichung65/Bhadua (TB; japonica–indica cross) and CPSLO17/W207-2 (CW; japonica–japonica). Of the four parents, W207-2 and Bhadua were found to be spikelet semi-sterile and stably inherited through selfing, and spikelet fertility segregated in the two populations. Therefore, recombination frequencies were recalculated after mapping the SDLs by using the multipoint method, and the molecular linkage maps of the two F2 populations were constructed to detect QTLs underlying spikelet fertility. As a result, five SDLs in the TB population were mapped on chromosomes 1, 3, 8 and 9, respectively. Two major QTLs underlying spikelet fertility, namely qSS-6a and qSS-8a, were detected on chromosomes 6 and 8, respectively. In the CW population, a total of 12 SDLs were detected on all 12 chromosomes except 1, 5, 7 and 11. Three QTLs underlying spikelet sterility, namely qSS-2, qSS-6b and qSS-8b on chromosomes 2, 6 and 8, were determined on the whole genome scale. Interestingly, both qSS-6a and qSS-6b, detected in the two F2 populations respectively, were located on a similar position as the S5 gene on chromosome 6; while qSS-8a and qSS-8b were also simultaneously detected on similar positions of the short arm of chromosome 8 in the two populations, which should be a new sterility gene showing the same type of zygotic selection.

RFLP-based phylogenetic analysis of wide compatibility varieties in Oryza sativa L.

1994 ◽  
Vol 88 (1) ◽  
pp. 65-69 ◽  
Author(s):  
K. Zheng ◽  
H. Qian ◽  
B. Shen ◽  
J. Zhuang ◽  
H. Lin ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
Oryza Sativa ◽  
Oryza Sativa L ◽  
Wide Compatibility
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