Polyploidy and radiosensitivity in wheat and barley

Bhaskaran, Shyamala; Swaminathan, M. S.

doi:10.1007/bf01816084

Cited by 13 publications

(5 citation statements)

References 119 publications

(44 reference statements)

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“…The effect of polyploidy on sensitivity to a wide range of X-rays and fast and thermal neutrons as measured by the frequency of chromosomal aberrations per unit length of chromosome, chromosomal aberrations at meiosis and DNA synthesis was reported in an earlier communication (BHASKARAN & SWAMINATHAN, 1960). SUMMARY 1.…”

Section: Materials 2nmentioning

confidence: 93%

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Polyploidy and radiosensitivity in wheat and barley

Bhaskaran

Swaminathan

1962

Genetica

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Section: Materials 2nmentioning

confidence: 93%

“…The species and varieties of diploid, tetraploid and hexaploid wheats and diploid and tetraploid barley and the mutagens used in the present study have already been described (BHASKARAN & SWAMINATHAN, 1960).…”

Section: Materialmentioning

confidence: 99%

Polyploidy and radiosensitivity in wheat and barley

Bhaskaran

Swaminathan

1962

Genetica

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“…2002). Conversely, the use of a variety of mutagenic treatments on common wheat did not result in the induction of waxy mutants (Bhaskaran and Swaminathan 1961, Rao and Sears 1964, Khvostova et al. 1965, Kao and Caldecott 1966, Goud 1967, Davies 1968).…”

Section: Discussionmentioning

confidence: 95%

Production of a fully waxy line and analysis ofwaxygenes in the allohexaploid crop, Japanese barnyard millet

Hoshino¹,

Nakamura

Seimiya³

et al. 2009

Plant Breeding

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Foxtail millet, common millet and Japanese barnyard millet have traditionally been important food sources in East Asian countries. Although waxy types of foxtail and common millet have been identified, a waxy mutant of the allohexaploid crop Japanese barnyard millet has not yet been reported. However, several Japanese landraces have been identified that have approximately half the level of amylose found in other varieties. We employed one of the low amylose landraces, 'Noge-Hie', to produce waxy Japanese barnyard millet using a c-radiation treatment. The seeds from a single M 2 plant stained red-brown with iodine solution, indicating the starch in the seeds lacked amylose. Colorimetric tests indicated that amylose was not present in endosperm tissue of the mutant, and analysis of starch granule bound proteins showed that waxy (Wx) protein was absent from the starch granules. The waxy trait was stably inherited in subsequent generations. Additionally, a PCR-based analysis demonstrated the presence of three separate waxy genes in the millet, and indicated that the low amylose landraces carry a deletion in one of these three genes.

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“…Among M 1 and F 1 M 1 populations, F 1 M 1 populations showed more mean value for plant height than their M 1 population. This negative shift in mean value in M 1 for this character may be related to physiological and biochemical disturbances [14,16,18], chromosome breakage [19], levels of ascorbic acid content, inhibition of DNA synthesis and impairment of energy [20].…”

Section: Resultsmentioning

confidence: 99%

The utility of chemical and radiation induced mutations in tetraploid wheat

Laxani¹,

Desai²,

Lohithaswa³

et al. 2013

Ind. Jrnl. Gen. Plnt. Bree.

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The present investigation was conducted with the main objective of studying the extent of genetic variability released through recombination, induced mutation and their combination for yield and its attributing traits in tetraploid wheat. The material consisted of segregating populations (F 2 , M 2 and F 2 M 2) developed from Triticum dicoccum wheat variety DDK1025 and T. durum wheat variety HD4502 after subjecting to EMS and γ γ γ γ γ-rays treatment. Among mutagen treated populations γ γ γ γ γ-rays induced more reduction in germination and survival percentage and mean plant height than EMS. Analysis of variance revealed highly significant differences among the populations for all the characters studied. An upper limit of range was more in M 2 compared to F 2 and F 2 M 2 populations for all the characters except for days to 50% flowering and number of productive tillers/ plant. In general, the γ γ γ γ γ-rays irradiated populations recorded highest PCV and GCV for all the characters except for plant height, spike length and spikelets/spike indicating greater scope for selection and improvement of these characters in desired direction. Most of the characters exhibited high heritability except spike length in all segregating populations. In general, the number of favorable correlations and higher strength of positive correlations were appeared to be more in F 2 M 2 populations than both F 2 and M 2 populations. The number of potential genotypes varied considerably across the traits and the populations. The F 2 M 2 (γ γ γ γ γ) population showed higher number of potential progeny lines compared to F 2 , F 2 M 2 (EMS) and M 2 populations. This indicated greater possibility of generation of potential genotypes through irradiation in heterozygous condition than EMS.

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Polyploidy and radiosensitivity in wheat and barley

Cited by 13 publications

References 119 publications

Polyploidy and radiosensitivity in wheat and barley

Polyploidy and radiosensitivity in wheat and barley

Production of a fully waxy line and analysis ofwaxygenes in the allohexaploid crop, Japanese barnyard millet

The utility of chemical and radiation induced mutations in tetraploid wheat

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