Somaclonal variation in rice – Submergence tolerance and other agronomic characters

Adkins, S. W.; Shiraishi, Toshihiko; McComb, J.; Ratanopol, S.; Kupkanchanakul, T.; Armstrong, Leisa; Schultz, A. L.

doi:10.1111/j.1399-3054.1990.tb05692.x

Cited by 21 publications

(7 citation statements)

References 17 publications

(15 reference statements)

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“…The occurrence of morphological changes reaching frequencies as high as 72 and 76% has previously been reported among progenies of large populations of somatic tissue-derived plants (Sun et al 1983, Oono et al 1984. The morphological traits which exhibited a wide variation in this study were also found to be highly variable in other evaluations of progenies of rice gametoclones (Oono 1978, Schaeffer et al 1984, Yi 1991, somaclones (Sun et al 1983, Oono et al 1984, Adkins et al 1990) and protoclones (Abdullah et al 1989) as weU as in M2 populations derived from classical mutagenesis (Sharma 1986). The most dramatic drifts were observed for HD and PH, which are also known to be among the most easily modified traits through induced mutagenesis in rice (Maluszynski et al 1986).…”

Section: Discussionsupporting

confidence: 76%

“…Although occurrence of chlorophyll mutations in the R, generation appears to be a common feature in rice somaclones (Fukui 1983, Sun et al 1983, Oono et al 1984, Adkins et al 1990), no R] Une exhibiting chlorophyll deficiency was found in this study. On the other hand, 15% of the regenerated Ro plants were albino (Guiderdoni and Chair 1992).…”

Section: Discussioncontrasting

confidence: 76%

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Variation among progenies of diploid plants regenerated from haploid, microspore‐derived cell‐suspension protoplasts of rice (Oryza sativa L.)

Mezencev¹,

Clément

Guiderdoni³

1995

Plant Breeding

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Progenies of 110 diploid RQ plants regenerated from haploid protoplasts derived from microspore callus cell suspension culture of rice (cv. Miara) were evaluated for 6 traits, along with control lines, in a replicated field trial. Complementary post-harvest observations were carded out for four panicle or grain characters. A wide range of vadation was observed for all traits under study among the protoclonal lines. The mean ofthe protoclonal population was significantly different from that ofthe control for most traits and 64.5% ofthe lines differed from the control for at least one field-evaluated trait. A unidirectional shift towards later-maturing, taller, and lower-tillering lines was observed. Of all the lines, 39% were taller than the control by at least 10 cm, 31 % had flowering delayed by at least 5 days, and 13% exhibited significantly longer panicles (P = 0.05). As to the agronomical value of the lines, the vadation resulted in a global negative drift although favourable variations were found in a few lines. All but two lines were homogeneous, suggesting that most variations existed in a homozygous form in the RQ plants. Ro lines grown from seeds of 17 R, protoclonal lines stably inherited the changes and did not segregate, thereby confirming that variations are fixed.

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Section: Discussionsupporting

confidence: 76%

Section: Discussioncontrasting

confidence: 76%

Variation among progenies of diploid plants regenerated from haploid, microspore‐derived cell‐suspension protoplasts of rice (Oryza sativa L.)

Mezencev¹,

Clément

Guiderdoni³

1995

Plant Breeding

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“…Field evaluations of somaclones have identified a number of interesting agronomic variants in rice, wheat, potato, sorghum, aromatic grass and S. guianensis (Adkins et al, 1990;Bhaskaran et al, 1987;Evans et al, 1986;Godwin et al, 1990;Larkin et al, 1984;Mathur et al, 1988;Miller et al, 1992;Sun et al, 1983). Recently, Miller et al (1992) reported tissue culture-derived sorghum lines with improved acid soil stress tolerance and other agronomic traits.…”

Section: Guianensismentioning

confidence: 99%

“…In some species, somaclonal variation has been shown to be heritable (Larkin, 1987), a necessary condition for somaclonal variation to be useful as a tool for studies on genetic plant adaptation to the environment. However, very few reports exist on the use of somaclonal variation for plant adaptation to abiotic stress (Adkins et al, 1990;Bagley and Taylor, 1987;Conner and 'Meredith, 1985;McHughen and Swartz, 1984;Miller et al, 1992;Ojima and Ohira, 1988).…”

Section: Introductionmentioning

confidence: 99%

Somaclonal variation in plant adaptation to acid soil in the tropical forage legume Stylosanthes guianensis

et al. 1992

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Somaclonal variation offers the possibility to obtain changes in one or a few characters of an otherwise outstanding cultivar without altering the remaining, and often unique, part of the genotype. It has been shown to be heritable for some species. A check line of Stylosanthes guianensis (Aubl.) Sw., CIAT 2243 and 14 somaclones in the R 4 generation, selected after three generations from the original 114 plants regenerated from callus cultures, were used in a glasshouse trial. The main objective of the study was to evaluate the physiological basis of the differences in agronomic performance of certain somaclones over the check genotype when grown in a sandy loam acid soil at low or high fertility level. Measurements at the time of harvest (170 days of plant age) included dry matter distribution between shoot and roots, leaf area production, nutrient levels in soil and plant parts, and uptake of nutrients from soil. Somaclones differed with the check genotype in terms of (i) partitioning of fixed carbon between the shoot and roots; (ii) root biomass production and (iii) uptake of nitrogen and phosphorus. Positive relationships were found between total nitrogen uptake and total biomass, and total phosphorus uptake and total biomass, and total phosphorus uptake and total nitrogen uptake. The results of this study provide an insight into the potential use of somaclonal variation for the improvement of plant adaptation to acid soil conditions.

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“…More recently, heritable improved submergence tolerance (Adkins et al 1990), aluminium tolerance (Van Sint Jan 1992), drought tolerance (Adkins et al 1995) and chilling tolerance (Bertin et al 1995) have been reported. However, somaclonal variation for plant breeding purposes has not so far resulted in extensive application.…”

mentioning

confidence: 97%

Field evaluation and selection of rice somaclonal variants at different altitudes

et al. 1996

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A field experiment was designed to compare control with tissue culturederived plants of rice, and to study the effects of natural selection pressure applied to the first generation (RO) of in vitro plants on the performance of their progeny. Control-and RO in vitro plants of four rice varieties from middle altitude in Burundi, i.e. 'Facagro 57', 'Facagro 76', 'Kirundo 3' and 'Kirundo 9', were cultivated at four diflferent altitudes (800, 1380, 1650 and 1900 m). Several parameters concerning tillering capacity, plant height development and seed production were measured. The means for most measured parameters were higher in control plants than in the in vitro plants, while the higher variation coefficients and most extreme values were usually found in the in vitro plants. For each variety, the 20 control plants and 20 in vitro plants having the highest production were selected at each altitude of 1380 and 1650 m, and their progenies were cultivated on the same site at 1580 m. Among the plants arising from 1650 m, most maximum values, higher variation coefficients and, in some cases, higher means were found in the in vitro plants. In contrast, among the plants arising from 1380 m, higher means most usually corresponded to control plants, while the tendency for maximum values and variation coefficients were unclear. These results indicate the positive effect of natural selection pressure applied in the first generation to plants rising from tissue culture. They also demonstrate that considerable variation may be generated in vitro. The interest for plant breeding purposes is discussed.

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Somaclonal variation in rice – Submergence tolerance and other agronomic characters

Cited by 21 publications

References 17 publications

Variation among progenies of diploid plants regenerated from haploid, microspore‐derived cell‐suspension protoplasts of rice (Oryza sativa L.)

Variation among progenies of diploid plants regenerated from haploid, microspore‐derived cell‐suspension protoplasts of rice (Oryza sativa L.)

Somaclonal variation in plant adaptation to acid soil in the tropical forage legume Stylosanthes guianensis

Field evaluation and selection of rice somaclonal variants at different altitudes

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