Summary
The nature of gene action and of maternal influence governing cottonseed oil attributes were determined with four lines, two each with high and low seed-oil percentage. For this purpose, P1, P2, F0, F1, F2 and alternative sets of BC1 and BC2 generations were analysed in six cross-combinations and their reciprocals. Marginal extents of heterosis for seed-oil percentage were noticeable in F1, with inbreeding depression in F2. Data from reciprocal backcrosses provided evidence in favour of maternal rather than cytoplasmic effects of seed-oil development. Relatively higher extents of heterosis, sizeable inbreeding depression and reciprocally unequal F2 averages were characteristic of the seed index trait, which often showed a reversal of effects from F1 to F2. Reverse reciprocal backcrosses exhibited some differences, including greater resemblance between the types, (A/B)A and (B/A)A, in addition to variable dose effects in seed index. Thus, the differences between F1 seed index values were not due to cytoplasmic influence. Positive heterotic effects for seed-oil index, especially among the backcrosses, ranged between 16.08% and 47.29% over midparent averages. Genetic component estimates from analysis of similar sets of crosses differing only in reciprocal backcrosses, and also from sets of reciprocal crosses between any two parental combinations, were inconsistent. Scaling tests detected presence of epistasis within and between a majority of cross-combinations. Despite reciprocal differences, additive gene effects for seed-oil percentage were significant in 7 out of 24 crosses, representing high x low, low x high and low x low seed-oil parents. Those were, however, accompanied by significant dominance effects of higher order. In crosses involving low seed-oil percentage parents SA1060 and SA229, all six components were detected significant, with opposite effects of dominance and dominance x dominance epistatic components. Significant additive components were also detected for seed index and seed-oil index in 7 and 5 out of 24 crosses, respectively. In the inheritance of seed index and seed-oil index, dominance effects were more important. Epistatic components of additive x additive, and to a lesser extent, those of dominant x dominant were found significant.
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References
Abdel-Bary AA, Bishr MA, El-Ashry MM, El-Fawal MA (1975) Genetic analysis of Egyptian cottonseed quality. Egypt J Genet Cytol 4:250–261
Al-Rawi KM, Kohel RJ (1969) Diallel analysis of yield and other agronomic characters in Gossypium hirsutum. L. Crop Sci 9:779–783
Altman DW, Thomas MD (1985) Chloroplst DNA analysis of diploid and tetraploid species and races. In: Brown JM (ed) Proc Beltwide Cotton Production Res Conf. New Orleans, National Cotton Council of America, Memphis/TN, pp 250–261
Bains SS, Murty BR, Joshi AB, Nanda GS (1982) Genetics of lint yield, boll weight, boll number and seed index in Gossypium hirsutum. Indian J Genet Plant Breed 42:134–139
Christiansen MN, Lewis CF (1973) Reciprocal differences in tolerance to seed-hydration chilling in F1 progeny of Gossypium hursutum L. Crop Sci 13:210–212
Dani RG (1984a) Genetic studies of seed-oil development in some cultivars of Gossypium hirsutum L. Seeds Farms 9:25–29
Dani RG (1984b) Effects of harvest time on oil and fibre development in some Indian cottons. Indian J Agric Sci 54:1084–1087
Dani RG (1984c) Heterosis in Gossypium hirsutum L. for seed oil and lint characteristics. Coton Fibres Trop 39:55–60
Dani RG (1985) Character association and intraseasonal variation in oil and lint development in cotton Gossypium hirsutum L. Ann Agric Res 6:60–67
Dani RG (1989) Genetic research of cottonseed: a review. Coton Fibres Trop 44 (in press)
Dani RG, Kohel RJ (1987) Effects of time of boll set on seed-oil content in upland cotton. Indian J Agric Sci 57:391–394
Garwood DL, Weber EJ, Lambert RJ, Alexander DE (1970) Effect of different cytoplasms on oil, fatty acids, plant height and ear height in maize Zea mays L. Crop Sci 10:39–41
Hayman BI (1958) The separation of epistatic from additive and dominance variation in generation means. Heredity 12:371–390
Heerden van HG (1969) Analysis of seed components in upland cotton and their associations with lint percentage. Ph D Diss, Texas A and M University, College Station
Kashalkar PD, Weginwar DG, Dani RG (1988) Variability of oil and lint traits and effects of harvest in upland cotton (Gossypium hirsutum L.) Indian J Agric Sci 58:554–555
Kohel RJ (1968) Effect of genotype and heterozygosity of pollen source and method of pollination on seed set and fibre development in cotton. Crop Sci 8:293–295
Kohel RJ (1978) Survey of Gossypium hirsutum L. germplasm collections for seed-oil percentage and seed characteristics. USDA-ARS-S-187, p 38
Kohel RJ (1980) Genetic studies of seed oil in cotton. Crop Sci 20:784–787
Kohel RJ, Cherry JP (1983) Variation in cottonseed quality with stratified harvests. Crop Sci 23:1119–1124
Mather K (1949) Biometrical genetics. Methuen, London
Meredith WR Jr (1984) Quantitative genetics. In: Kohel RJ, Lewis CF (eds) Cotton. Agronomy Monograph No. 24. American Society of Agronomy, Madison/WI, pp 131–150
Meredith WR Jr, Bridge RR (1972) Heterosis and gene action in cotton, Gossypium hirsutum L. Crop Sci 12:304–310
Meredith WR Jr, Bridge RR, Chism JF (1970) Relative performance of F1 and F2 hybrids from doubled haploids and their parent varieties in upland cotton, Gossypium hirsutum L. Crop Sci 10:295–298
Mosjidis JA, Yermanos DM (1984) Maternal effects and cytoplasmic inheritance of oleic and linoleic acid contents in sesame. Euphytica 33:427–432
Ramey HH (1963) Gene action in the inheritance of lint index in upland cotton. Crop Sci 3:32–33
Ramos LCDS (1985) A genetic study of cottonseed oil content associated with glanded and glandless strains. Ph D Diss, Texas A and M University, College Station
Ramos LCDS, Kohel RJ (1987) Seed-oil content of glanded and glandless cottons. J Am Oil Chem Soc 64:1337–1340
Singh M, Singh TH, Chahal GS (1985) Genetic analysis of some seed quality characters in upland cotton Gossypium hirsutum L. Theor Appl Genet 71:126–128
White WH, Jenkins JN, Parrot WL, McCarty JC, Collum DH, Hedin PA (1982) Generation mean analysis of various allelochemics in cotton. Crop Sci 22:1046–1049
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Communicated by B. R. Murty
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Dani, R.G., Kohel, R.J. Maternal effects and generation mean analysis of seed-oil content in cotton (Gossypium hirsutum L.). Theoret. Appl. Genetics 77, 569–575 (1989). https://doi.org/10.1007/BF00274282
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DOI: https://doi.org/10.1007/BF00274282