Comparison of a radioresistant with a radiosensitive cultivar of Cicer arietinum L.—II. Differences in the number of chromosome aberrations at the same dose

Ahmad, Saeed; Godward, M. B. E.

doi:10.1016/0098-8472(81)90021-6

Cited by 12 publications

(4 citation statements)

References 24 publications

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“…Bridge formation can be attributed to the general stickiness of the chromosomes at mataphase stage or breakage and reunion of chromosomes. Similar bridges are reported by a number of workers after irradiation or (Aamer and Ali 1983, Aamer and Farah 1985, Grower 1985, Devadas et al 1986, Ahmad and Yasmin 1992. Radiation induced chromosome stickiness was reported to be the result of partial disas sociation of the nucleoprotein and alteration in their pattern of organization (Evans 1962).…”

Section: Discussionsupporting

confidence: 71%

“…Different types of meiotic abnormalities observed in the present study have also been reported by different workers in different plant materials after irradiation or chemical treatment (Sudhakaran 1971, Sinha and Godward 1972, Kaliyar 1978, Aamer and Farah 1979, Kaur and Grover 1985, Rabindra 1989, Ignacimuthu and Babu 1989, Soheir 1989, Ahmad and Yasmin 1992, Patel and Bhat 1992, Singh 1992). Higher percentages of multivalents and anaphase-I bridges were recorded in the present study as compared to other types of meiotic abnormalities.…”

Section: Discussionsupporting

confidence: 60%

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Meiotic Studies in Two Cultivars of Cicer arietinum L. after Gamma Irradiation.

Ahmad

1993

CYTOLOGIA

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Section: Discussionsupporting

confidence: 71%

Section: Discussionsupporting

confidence: 60%

Meiotic Studies in Two Cultivars of Cicer arietinum L. after Gamma Irradiation.

Ahmad

1993

CYTOLOGIA

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“…Mayuri that may in turn leads to the production of greater phenotypic variations and positive variations in the economic characters may be selected and can effectively be exploited for the improvement of this medicinally important crop. Such intervarietal differences have also been reported earlier by many workers (Evans and Sparrow 1961;Ahamad and Godward 1981).…”

Section: Resultssupporting

confidence: 87%

Comparative genotoxic potential of <i>γ</i> rays in two varieties of Isabgol (<i>Plantago ovata</i> Forsk.)

Mishra

Khan

2015

Chromosome Botany

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The present investigation deals with the mutagenic effects of six doses of γ rays viz., 15 kR, 30 kR, 45 kR, 60 kR, 75kR and 90 kR on pollen fertility and meiosis in M 1 generation of two varieties of Isabgol (Plantago ovata Forsk.) i.e., var. Mayuri and var. Niharika. These studies were carried out in control as well as in treated population of both the varieties. During the meiotic studies various types of chromosome aberrations were identified at different stages of meiosis in all the doses of γ rays. These anomalies were observed to be dose dependent and positively correlated with the doses of γ rays applied in both the varieties. The frequency of meiotic aberrations was maximum at metaphase followed by anaphase and telophase stages. Pollen fertility had also shown a gradual decrease with an increase in doses of γ rays in both the varieties. These collective observations had indicated that γ rays are more effective in var. Mayuri as it produced more chromosomal aberrations in var. Mayuri in comparison with var. Niharika, and equally suggested that var. Mayuri is more sensitive to the γ rays than the var. Niharika.

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“…Differences to radiosensitivity were also reported by Nerker ( 1976 ) in Lathyrus sativus . Ahmad and Godward ( 1981 ) reported radiosensitivity in nine cultivars of chickpea. Out of these nine, two cultivars CSIMF and F10 were identifi ed as the most radioresistant and radiosensitive, respectively.…”

Section: Mutagen Dose and Genotypic Sensitivitymentioning

confidence: 97%