Inheritance of salt tolerance in rice

Moeljopawiro, Sugiono; Ikehashi, Hiroshi

doi:10.1007/bf00033990

Cited by 58 publications

(24 citation statements)

References 5 publications

(1 reference statement)

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“…The previous research showed that salt tolerance in rice was controlled by polygene with the additive and dominant effects, the former playing a major role (Moeljopawiro andIkehashi 1981, Gregorio andSenadhira 1993). Koyama et al (2001) have identified some QTLs associated with Na + /K + ratio on chromosomes 1 and 4.…”

Section: Discussionmentioning

confidence: 98%

QTLs mapping of physiological traits related to salt tolerance in young rice seedlings

Sabouri¹,

Rezai²,

Moumeni³

et al. 2009

Biologia plant.

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Oryza sativa L. F 2 population and F 2:3 derived from a cross between salt tolerance cv. Tarommahali and salt sensitive cv. Khazar were used in this study. A linkage map based on F 2 population was constructed (74 SSR markers on 192 individuals), which covered a total of 1231.50 cM with an average two locus interval of 19.83 cM. Two QTLs related to Na + /K + ratio were found on chromosome 3 and 6. qDM-3 and qDM-8 (for dry mass of shoot) are major QTLs with very large effects explained 20.90 and 17.72 % of the total phenotypic variance, respectively. Major locus for DM (qDM-3) was bracketed by RM1022 -RM6283 spread over 13.6 cM on chromosome 3. Major part of the variability for standard tolerance ranking (STR) was explained by the qSTR-6 flanked by RM3727 -RM340 on chromosome 6, which exhibited phenotypic variance of 17.25 % and peak likelihood ratio (LR) of 17.51. The length of this QTL is 8.8 cM and identification of any tightly linked markers in this region will serve as a candidate gene for fine-mapping. qSTR-3 overlapped with qNA-3 and qNAK-3. The qSTR-3 may contain a new major gene for salt stress tolerance at seedling stage in rice. Major QTLs identified in this paper, after fine-mapping, could be used for marker assisted selection.

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Section: Discussionmentioning

confidence: 98%

QTLs mapping of physiological traits related to salt tolerance in young rice seedlings

Sabouri¹,

Rezai²,

Moumeni³

et al. 2009

Biologia plant.

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“…In high salinity stress, 15 dS/m, leaf area is the only trait that showed additive type of gene action, while all other traits exhibited non-additive type of gene action. It is evident from these results that both the additive and dominance effects were significant; therefore, the genetics of salt tolerance in tomato seems highly complicated as has also been reported for some other crops, e.g., rice (Moeljopawiro and Ikehashi, 1981), grain sorghum (Ratanadilok et al, 1978;Azhar and McNeilly, 1988) and chickpea (Waheed, 1996).…”

Section: Discussionmentioning

confidence: 78%

Genetic analysis of NaCl tolerance in tomato

Saeed

Shahid²,

Sa³

et al. 2011

Genet. Mol. Res.

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ABSTRACT. We attempted to find the suitable parents for the development of tomato hybrids for high salt soils by exploiting combining ability, gene action and heterosis. Six salt-tolerant and three salt-intolerant genotypes, along with their 18 F1 crosses, were evaluated at seedling stage under 10 and 15 dS/m (NaCl) salinity stress, compared to the control level of salinity. The experiment was laid out based on a two-way complete randomized design factorial arrangement with two replications; data on root and shoot length, fresh and dry weights, leaf /Na + concentrations were recorded. There was significant variation within genotypes, lines, testers, crosses, and line × tester interaction for all plant characters studied under normal and two salinity levels. Estimates of combining ability indicated that under low (10 dS/m) and high (15 dS/m) salinities, line BL1176 and tester LO2875 showed significant GCA effects for most of the traits studied. The cross-combinations 6233 × LO2875, CLN2498A x LO2875 and BL1176 × 17902 showed highest SCA values for most of the characters under 10 and 15 dS/m, respectively. Potence ratio showed that under low and high salinities, all the traits showed over dominant type of gene action except leaf area and K + concentration (in 10 dS/m) and shoot length, and leaf area (in 15 dS/m). The highest heterosis for most of the parameters was observed in cross-combinations BL1176 × LO2875 and CLN2498A x LO2875.

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“…Shannon (1985) suggested that there is evidence of a genetically complex trait, showing heterosis, dominance and additive effects. In diallel analysis the effects of salinity on the seedling stage and on sterility suggested both additive and dominance effects, some with high heritability (Moeljopawiro and Ikehashi, 1981;Akbar et al, 1985). Another inheritance study for salinity tolerance in rice by Mishra et al (1998) also inferred polygenic inheritance.…”

Section: Genetics Of Salt Tolerance In Ricementioning

confidence: 99%

“…Most inheritance studies indicated a normal distribution of the trait in different populations, indicating its polygenic inheritance. Moeljopawiro and Ikehashi (1981) did one of the earliest studies in rice using two crosses between two moderately tolerant parents and between two tolerant parents rather than the contrasting parents. They found a low genetic response to selection and a high degree of environmental fluctuations.…”

Section: Genetics Of Salt Tolerance In Ricementioning

confidence: 99%

“…According to Lin et al (2004) and Hu et al (2012), salt tolerance of rice is the genetics of quantitative characters, which is controlled by multiple genes, with the additive and dominant effects, the former playing a major role (Moeljopawiro and Ikehashi, 1981;Gregorio and Senadhira, 1993;Gu et al, 1999). Akbar et al (1985) reported that the dry matter weight of rice seedling under salt stress was affected by at least two groups of genes with additive effect, and no epistatic effect was detected.…”

Section: Genetics Of Salt Tolerance In Ricementioning

confidence: 99%

See 1 more Smart Citation

Genetic Improvement of Rice (Oryza sativa) For Salt Tolerance: A Review

2017

International Journal of Advanced Research in Botany

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Inheritance of salt tolerance in rice

Cited by 58 publications

References 5 publications

QTLs mapping of physiological traits related to salt tolerance in young rice seedlings

QTLs mapping of physiological traits related to salt tolerance in young rice seedlings

Genetic analysis of NaCl tolerance in tomato

Genetic Improvement of Rice (Oryza sativa) For Salt Tolerance: A Review

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