Segregation distortion in F2 and doubled haploid populations of temperate japonica rice

Yamagishi, Masumi; Takeuchi, Yoshinobu; Tanaka, Isao; Kono, Izumi; Murai, Koji; Yano, Masahiro

doi:10.1007/s12041-010-0032-z

Cited by 18 publications

(16 citation statements)

References 21 publications

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“…A powerful evolutionary force (Taylor and Ingvarsson, 2003), it has been reported in several crop species (Tai et al, 2000; Kumar et al, 2007; Xu et al, 2008). Segregation distortion is influenced by many factors such as mapping population, residual heterozygosity in parental lines, gametophytic competition, abortion of male or female gametes or zygotes, nonhomologous recombination, transposable elements, chromosome translocation, complementary genes, and experimental techniques (Cloutier et al, 1997; Knox and Ellis, 2002; Zhu et al, 2007; Yamagishi et al, 2010). Similar to the flax consensus map, the majority of the distorted markers clustered onto two LGs, namely LG8 and LG12, suggesting that genetic factors are more likely to have caused the distorted ratios than statistical bias or genotyping or scoring errors (Plomion et al, 1995).…”

Section: Discussionmentioning

confidence: 99%

Mapping Quantitative Trait Loci for Powdery Mildew Resistance in Flax (Linum usitatissimum L.)

et al. 2013

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Powdery mildew (Oidium lini Skoric, [PM]), an obligate biotrophic ascomycete, is a common and widespread foliar disease of flax in most flax‐growing areas of the world. In this study, we constructed a linkage map using 143 simple sequence repeat (SSR) markers and an F2 population of 300 individuals generated from a cross between the susceptible cultivar NorMan and the resistant cultivar Linda. The F2–derived F3 families were phenotyped in the field and the F3–derived F4 families were phenotyped in a controlled environment growth chamber. The 15 linkage group map covered 1241 cM and was largely collinear with the previously published consensus map. Quantitative trait loci (QTL) analysis was performed and three PM resistance QTL located on LG1, 7, and 9 were identified consistently using phenotyping data from both field and growth chamber studies. These QTL explained 97% of the phenotypic variation exhibiting a mainly dominant gene action. This work represents a first step toward understanding the genetics of PM resistance in flax and map‐based cloning of candidate genes underlying the QTL.

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Section: Discussionmentioning

confidence: 99%

Mapping Quantitative Trait Loci for Powdery Mildew Resistance in Flax (Linum usitatissimum L.)

et al. 2013

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“…In barley, Segregation distortion was also reported many times (Heun et al, 1991;Goloenko et al, 2002;Li et al, 2010). Segregation distortion is influenced by many factors, such as mapping population, gametophytic competition, abortion of the male or female gametes or zygotes, non-homologous recombination, transposable element and environmental agents et al (Kinoshita, 1993;Knox and Ellis, 2002;Yamagishi et al, 2010). The development of high density molecular linkage maps provided a chance to survey the whole genome for loci showing distorted segregation (Harushima et al, 1996;Causse et al, 1994).…”

Section: Introductionmentioning

confidence: 99%

Genetic Analysis of Segregation Distortion of SSR Markers in F2 Population of Barley

Liu¹,

You²,

Guo³

et al. 2011

JAS

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Abstract260 F 2 individuals derived from the cross between a photoperiod-thermo-sensitive genic male sterile (PTGMS) barley line C54S and a barley elite cultivar 98-26 were used to construct a genetic linkage map. Fifty-one out of total 191 SSR markers were mapped on the 7 chromosomes covering 772.4 cM of barley genome, with the average intervals of 15.1 cM. Among the 65 polymorphic SSR locus, 22 locus (33.8%) showed genetic distortion (P<0.05), and all of them deviated toward female parent C54S. The highest distortion was observed on chromosome 4H. The two putative segregation distortion regions (SDRs) were detected on chromosome 5H and 6H, respectively. Some potential factors involved in the segregation distortion were discussed in this study.

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“…Heredity Keywords: segregation distortion; cytoplasm; selection; viability; maize INTRODUCTION Segregation distortion, also called transmission ratio distortion, is the phenomenon whereby alleles at a locus deviate from the Mendelian expectation. This phenomenon has been described in many species, including maize (Lu et al, 2002), rice (Yamagishi et al, 2010), eggplant (Barchi et al, 2010), alfalfa (Li et al, 2011), mouse (Casellas et al, 2010 and drosophila (Orr and Irving, 2005;Phadnis, 2011). These alleles, also called segregation distorters, might alter the transmission ratio in specific cases and are considered selfish genetic elements that manipulate Mendelian transmission to their own advantage (Hurst and Werren, 2001;Phadnis and Orr, 2009;Werren, 2011).…”

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confidence: 98%

The maternal cytoplasmic environment may be involved in the viability selection of gametes and zygotes

Tang¹,

Wang²,

Zhang³

et al. 2012

Heredity

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Segregation distortion is the phenomenon whereby the observed genotypic frequencies of a locus fall outside the expected Mendelian segregation ratio, and it is increasingly recognised as a potentially powerful evolutionary force. The main reason for segregation distortion is a difference in the viability of gametes and zygotes caused by viability loci in the segregating progeny. However, the maternal cytoplasm may also be involved in the viability selection of gametes and zygotes. The objectives of this study were to map the segregation distortion loci (SDL) in maize and to test the hypothesis that the viability of gametes and zygotes may also be associated with the maternal cytoplasmic environment. In the present study, a reciprocal mating design was conducted to generate an F2-segregating population. A linkage map was constructed with 126 microsatellite markers. A whole-genome scan was performed to detect the SDL in segregating populations with different maternal cytoplasm environments. Altogether, 14 SDL with strong LOD (logarithm (base 10) of odds) supports were identified in the specifically designed F2 populations. Interestingly, we found dramatic changes in the genotypic frequencies of the SDL in the two maternal cytoplasmic backgrounds, which indicated a change in the viability of gametes and zygotes in different cytoplasmic environments. Furthermore, in the JB cytoplasmic background, most of the detected SDL and complete distortion markers exhibited similar bias patterns favouring the Y53 alleles. These results suggested that selfish cytoplasmic elements may have an important role in shaping the patterns of segregation distortion in F2 populations through selective viability of gametes and zygotes. Heredity Keywords: segregation distortion; cytoplasm; selection; viability; maize INTRODUCTION Segregation distortion, also called transmission ratio distortion, is the phenomenon whereby alleles at a locus deviate from the Mendelian expectation. This phenomenon has been described in many species, including maize (Lu et al., 2002), rice (Yamagishi et al., 2010), eggplant (Barchi et al., 2010), alfalfa (Li et al., 2011), mouse (Casellas et al., 2010 and drosophila (Orr and Irving, 2005;Phadnis, 2011). These alleles, also called segregation distorters, might alter the transmission ratio in specific cases and are considered selfish genetic elements that manipulate Mendelian transmission to their own advantage (Hurst and Werren, 2001;Phadnis and Orr, 2009;Werren, 2011). Evolutionary research suggests that segregation distorters may be involved in promoting population divergence and, ultimately, speciation (Phadnis and Orr, 2009;McDermott and Noor, 2010). A variety of physiological and genetic factors may explain the observed segregation distortion. For example, meiotic drive, the preferential selection that occurs during meiosis, may cause certain alleles to be overrepresented in the gametes (McDermott and Noor, 2010). As a result, distorted Mendelian ratios may be observed in offspring that have undergone genot...

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Segregation distortion in F2 and doubled haploid populations of temperate japonica rice

Cited by 18 publications

References 21 publications

Mapping Quantitative Trait Loci for Powdery Mildew Resistance in Flax (Linum usitatissimum L.)

Mapping Quantitative Trait Loci for Powdery Mildew Resistance in Flax (Linum usitatissimum L.)

Genetic Analysis of Segregation Distortion of SSR Markers in F2 Population of Barley

The maternal cytoplasmic environment may be involved in the viability selection of gametes and zygotes

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