Resistance in Sorghum to Sorghum Shoot Fly (Diptera: Muscidae) Oviposition on Selected Cultivars

Raina, Ashok K.; Thindwa, H. Z.; Othieno, S. M.; Douglass, L. W.

doi:10.1093/jee/77.3.648

Cited by 9 publications

(5 citation statements)

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“…The present results also indicated that though oviposition non-preference is the primary component of resistance to shoot fly under multi-choice field conditions, it breaks down under no-choice conditions in the cage, a situation akin to large-scale planting of the resistant cultivar or very heavy shoot fly density during the delayed planting in the rainy season, and early planting during the postrainy season. The initial choice of cultivars, such as CSH 1 for oviposition was random, although the time spent by female shoot flies on resistant cultivars (IS 2146, IS 3962 and IS 5613) was short (Raina et al, 1984). Shoot fly females lay eggs on non-preferred cultivars only after laying several eggs on the seedlings of susceptible cultivars.…”

Section: Discussionmentioning

confidence: 99%

Mechanisms of resistance to shoot fly, Atherigona soccata in sorghum

et al. 2005

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SummarySorghum shoot fly, Atherigona soccata (Rondani) is an important pest of sorghum in Asia, Africa, and Mediterranean Europe, and host plant resistance is an important component for the management of this pest. The levels of resistance in the cultivated germplasm are low to moderate, and therefore, it is important to identify genotypes with different mechanisms of resistance to pyramid the resistance genes. We studied the antixenosis for oviposition, antibiosis, and tolerance components of resistance in a diverse array of shoot fly-resistant and -susceptible genotypes. The main plants and tillers of SFCR 151, ICSV 705, SFCR 125, and, IS 18551 experienced lower shoot fly deadhearts at 28 days after seedling emergence, produced more number of productive tillers. The insects fed on these genotypes also exhibited longer larval period (10.1-11.0 days compared to 9.3 days on Swarna), lower larval survival and adult emergence (54.7-67.8 and 46.7-52.2% compared to 73.3 and 60.6% on Swarna, respectively), and lower growth and adult emergence indices as compared to the susceptible check, Swarna. Physico-chemical traits such as leaf glossiness, trichome density, and plumule and leaf sheath pigmentation were found to be associated with resistance, and chlorophyll content, leaf surface wetness, seedling vigor, and waxy bloom with susceptibility to shoot fly and explained 88.5% of the total variation in deadhearts.Step-wise regression indicated that 90.4% of the total variation in deadhearts was due to leaf glossiness and trichome density. The direct and indirect effects, correlation coefficients, multiple and step-wise regression analysis suggested that deadhearts, plants with eggs, leaf glossiness, trichomes on the abaxial surface of the leaf, and leaf sheath pigmentation can be used as marker traits to select for resistance to shoot fly, A. soccata in sorghum.

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Section: Discussionmentioning

confidence: 99%

Mechanisms of resistance to shoot fly, Atherigona soccata in sorghum

et al. 2005

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“…On the other hand, under cage conditions, in the absence of preferred host, oviposition was equal on resistant and susceptible varieties Singh and Narayana, 1978). Sometimes, ovipositional non-preference was also operative in the absence of preferred host(s) (Jotwani et al, 1974;Wongtong and Patanakamjorn, 1975;Raina et al, 1984). Blum (1969b) concluded that ovipositional non-preference was apparent in the progenies of susceptible and resistant sorghums; and was most influenced by shootfly density (Singh and Jotwani, 1980a).…”

Section: Non-preference Iantixenosismentioning

confidence: 99%

“…Behavioural responses showed that initial choice of a susceptible cultivar, CSH 1 was random, but the female shootflies stay on IS 2146, IS 3962 and IS 5613 was brief (Raina et al, 1984). In addition, adult females laid eggs on non-preferred cultivars only after laying several eggs on alternate susceptible CSH 1 seedlings.…”

Section: Non-preference Iantixenosismentioning

confidence: 99%

Resistance in sorghum to the shootfly, Atherigona soccata Rondani

Singh

Rana

1986

Int. J. Trop. Insect Sci.

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The shootfly, Atherigona soccata Rondani, is a major seedling pest of sorghum in many areas of tropical Asia, Africa and Mediterranean Europe. A chronological review of the progress made in various programmes on the screening techniques (natural and artificial) with artificial diets, sources, stability and mechanisms of resistance, bases (physico-morphological and biochemical factors) of resistance, inheritance and breeding for resistance is made. Many resistant varieties have been identified and sources of resistance utilized in breeding programmes to transfer resistance in high yielding background are listed. In addition, the glossy and trichome traits identified is sorghum cultivars are also reported. Glossy leaf surface and trichomes are frequently associated with shootfly resistance.

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“…A population breeding approach as followed recently for grain mold resistance 54 may be a strategy for improving shoot fly resistance as it requires several cycles of crossing to combine resistance and yield. 55…”

Section: Discussionmentioning

confidence: 99%

Multi‐trait stability index for the identification of shoot fly (Atherigona soccata) resistant sorghum lines from a mini core collection

Madhusudhana

Padmaja

2023

Pest Management Science

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BACKGROUNDOn sorghum, shoot fly (Atherigona soccata Rondani) is the most destructive insect pest causing enormous economic losses. Breeding for host plant resistance is the best and economically viable strategy to control shoot fly damage. For improving resistance, there is a need to identify better donors with resistance, stability and adaptability. Sorghum mini core set representing global genetic diversity offers opportunity to understand genetic diversity of resistance component traits, their genotype × year (G × Y), and to identify better donors based on mean performance of multiple shoot fly resistance traits coupled with stability.RESULTSSignificant genetic variability and G × Y interaction was detected for all traits in the mini core set. Broad sense heritability and accuracy of selection for traits was high. Genetic correlation between deadhearts and leaf surface glossiness and with seedling height were negative while genetic correlation of deadhearts with oviposition was positive. The sorghum races did not establish any inherent relation with shoot fly resistance. Based on multiple trait stability index (MTSI), the study identified 12 stable resistant accessions. Selection differential and selection gains in the selected genotypes were positive for both glossiness and seedling height and were negative for deadhearts and Eggs.CONCLUSIONThe MTSI selected new sources of resistance may constitute a breeding population for providing a dynamic gene pool of different resistance mechanisms for improving shoot fly resistance in sorghum. © 2023 Society of Chemical Industry.

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Resistance in Sorghum to Sorghum Shoot Fly (Diptera: Muscidae) Oviposition on Selected Cultivars

Cited by 9 publications

References 0 publications

Mechanisms of resistance to shoot fly, Atherigona soccata in sorghum

Mechanisms of resistance to shoot fly, Atherigona soccata in sorghum

Resistance in sorghum to the shootfly, Atherigona soccata Rondani

Multi‐trait stability index for the identification of shoot fly (Atherigona soccata) resistant sorghum lines from a mini core collection

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