, Volume 109, Issue 1, pp 1–7 | Cite as

Inheritance of bolting tendency in lettuce Lactuca sativa L.

  • E.C. Silva
  • W.R. Maluf
  • N.R. Leal
  • L.A.A. Gomes


Resistance to early flowering is an important attribute of lettuce cultivars adapted to tropical conditions. Lettuce cultivars may vary widely in the number of days necessary from sowing to inflorescence formation and flowering. In this paper, we report on the polygenic inheritance of the number of days to flowering in two crosses among contrasting lettuce cultivars – Vitória × Brasil-303 and Babá × Elisa. F1 and F2 seed were obtained for each cross, and used to estimate broad sense heritabilities. F3 families were obtained from randonly sampled F2 plants, and used to estimate narrow sense heritabilities based on parent-offspring regression. Trials were carried out in plastic greenhouses in Campos dos Goytacazes, in the Northern part of the State of Rio de Janeiro, Brazil. Broad and narrow sense heritabilities for days to first anthesis were 0.737 and 0.489 for the cross Vitória × Brasil-303, and 0.818 and 0.481 respectively, for the cross Babá × Elisa. In both crosses, both early and late-flowering transgressive segregants were obtained. Genetic gains based on selection of late flowering transgressive segregants in the F2's were estimated to be 10.2 days in Vitória × Brasil-303 cross, and 8.7 days in the Babá × Elisa cross.

bolting heat resistance inflorescence formation inheritance late flowering lettuce breeding transgressive segregation 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. Collicchio, E., M.A. Silveira & P.R. Gonçalves, 1993. Comportamento de quatro cultivares de alface sob túnel alto de plástico no estado do Tocantins. In: Congresso da Pós-graduação na Esal, 6. Anais. Lavras, Associação de Pós-Graduação/Coordenadoria de Pós-Graduação. pp. 107-108.Google Scholar
  2. Costa, C.P. & N. Silva, 1976. Melhoramento da alface para resistência múltipla ao calor e ao mosaico. Revista de Oliricultura 15: 26-27.Google Scholar
  3. Christopher, E.P., 1958. Introductory Horticulture. McGraw-Hill Book Company Inc., New York. 482 pp.Google Scholar
  4. Federer, W.T., 1956. Augmented (or hoonuiaku) designs. Hawaiian Planters Record 18: 191-208.Google Scholar
  5. Kempthorne, O., 1957. An introduction to genetic statistics. The Iowa State University Press, Ames. 595 pp.Google Scholar
  6. Lindqvist, K., 1960. Inheritance studies in lettuce. Hereditas 46: 387-470.CrossRefGoogle Scholar
  7. Mather, K. & J.L. Jinks, 1977. Introduction to Biometrical Genetics. Cornell Univ. Press, Ithaca, NY. 237 pp.Google Scholar
  8. Nagai, H. & A.S. Costa, 1972. Resistência ao calor e ao mosaico numa variedade nova de alface tipo manteiga. Revista de Olericultura 12: 30.Google Scholar
  9. Nagai, H. & A.S. Costa, 1973. Seleção de novas linhagens de alface resistentes ao mosaico e ao calor. Revista de Olericultura 13: 27-28.Google Scholar
  10. Nagai, H., 1979. Obtenção de novos cultivares de alface (Lactuca sativa L.) resistente ao mosaico e ao calor-Brasil 48, 202 e 221. Revista de Olericultura 17: 129-137.Google Scholar
  11. Nagai, H. & R.S. Lisbão, 1980. Observação sobre resistência ao calor em alface (Lactuca sativa L.). Revista de Olericultura 18: 7-13.Google Scholar
  12. Nagai, H., 1980. Obtenção de novos cultivares de alface (Lactuca sativa L.) resistente ao mosaico e ao calor-Brasil-303 e 311. Revista de Olericultura 18: 14-21.Google Scholar
  13. Nagai, H., 1983. Caracterização de resistência ao calor em alface (Lactuca sativa L.). In: Congresso Brasileiro de Olericultura, 23. Resumos. Vitória, Sociedade de Olericultura do Brasil, 133 pp.Google Scholar
  14. Ramalho, M.A.P., J.B. Santos & M.J.O. Zimmermann, 1994. Genética Quantitativa em plantas autógamas-Aplicações no melhoramento do feijoeiro. Universidade Federal de Goiás, Goiânia-GO, Brasil, 279 pp.Google Scholar
  15. Robinson, H.F., R.E. Comstock & P.H. Harvey, 1949. Estimates of heritability and the degree of dominance in corn. Agron J 41: 353-359.CrossRefGoogle Scholar
  16. Robinson, R.W., J.D. McCreigt & E.J. Ryder, 1983. The genes of lettuce and closely related species. In: J. Janick (Ed), Plant Breeding Reviews. v. 1. AVI Publishing Co., Westport. 379 pp.Google Scholar
  17. Ryder, E.J., 1979. Leafy salad vegetables. AVI Publishing Co., Westport. 266 pp.Google Scholar
  18. Ryder, E.J., 1986. Lettuce breeding. In: M. Basset (Ed), Breeding Vegetable Crops. AVI Publishing Co., Westport, pp. 433-474.Google Scholar
  19. Ryder, E.J., 1988. Early flowering in lettuce as influenced by a second flowering time gene and seasonal variation. J Amer Soc Hort Sci 113: 456-460.Google Scholar
  20. Silva, E.C., 1997. Estudos genéticos relacionados à adaptação da alface (Lactuca sativa L.) sob altas temperaturas em cultivo protegido na região Norte Fluminense. Campos dos Goytacazes, Universidade Estadual do Norte Fluminense, Brasil. 70 pp. (Doctoral Thesis)Google Scholar
  21. Smith, J.D. & M.L. Kinman, 1965. The use of parent-offspring regression as an estimator of heritability. Crop Sci 5: 595-596.CrossRefGoogle Scholar
  22. Thompson, R.C., 1944. Lettuce varieties and culture. USDA Farmer's Bulletin No. 1953, Washington, 38 pp.Google Scholar
  23. Van der Pahlen, A. & J. Crnko, 1965. El virus del mosaico de la lechuga (Marmor lactua Holmes) en Mendoza y Buenos Aires. Rev Invest Agropec Ser 2(5): 25-31.Google Scholar
  24. Viggiano, J., 1990. Produção de sementes de alface. In: P.D. Castellane, W.M. Nicolosi & M. Hasegawa (Eds), Produção de Sementes de Hortaliças. FCAV/FUNEP, Jaboticabal-SP-Brasil, pp. 1-15.Google Scholar
  25. Waycott, W., 1995. Photoperiodic response of genetically diverse lettuce accessions. J Amer Soc Hort Sci 120(3): 460-467.Google Scholar
  26. Wiebe, H.J. & H. King, 1985. Influence of daylength on development and growth of lettuce. Gartenbauwissenschaft 50: 202-206.Google Scholar

Copyright information

© Kluwer Academic Publishers 1999

Authors and Affiliations

  • E.C. Silva
    • 1
  • W.R. Maluf
    • 2
  • N.R. Leal
    • 1
  • L.A.A. Gomes
  1. 1.Universidade Estadual do Norte Fluminense (UENF), Campos dos Goytacazes amp;Brazil
  2. 2.Departamento de AgriculturaUniversidade Federal de Lavras (UFLA)Lavras – MG –Brazil

Personalised recommendations