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Characterization of seed coat post harvest darkening in common bean (Phaseolus vulgaris L.)

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Abstract

Seed coat post harvest darkening (PHD) represents a problem for producers and consumers of several market classes of dry bean. There are three PHD phenotypes: (1) non-darkening (ND), (2) slow darkening (SD) and (3) regular darkening (RD). The inheritance of PHD was elucidated by evaluating populations derived from crosses among multiple RD, SD and ND genotypes. Results indicate that at least two unlinked major genes control the PHD trait in common bean. Recessive epistasis with three phenotypic classes explains the segregation ratios of populations from crosses between SD and ND parents. One gene, J, is responsible for whether a bean will darken as seeds from plants that are jj do not darken at all. Another gene, sd, influences how quickly a seed coat will darken with sdsd individuals darkening more slowly than those with the dominant Sd allele.

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References

  1. Bassett MJ (1996) The margo (mar) seedcoat colour gene is a synonym for the joker (j) locus in common bean. J Am Soc Hort Sci 121:1028–1031

  2. Bassett MJ, Lee R, Symanietz T, McClean PE (2002) Inheritance of reserve margo seedcoat pattern and allelism between the genes J and L for partly colored seed coat pattern in common bean. J Am Soc Hort Sci 127:56–61

  3. Junk-Knievel DC, Vandenberg A, Bett KE (2007) An accelerated post-harvest seedcoat darkening protocol for pinto beans grown across different environments. Crop Sci 47:694–702

  4. Junk-Knievel DC, Vandenberg A, Bett KE (2008) Slow darkening in pinto bean (Phaseolus vulgaris L.) seed coats is controlled by a single major gene. Crop Sci 48:189–193

  5. McClean PE, Lee RK, Otto C, Gepts P, Bassett MJ (2002) Molecular and phenotypic mapping of genes controlling seed coat colour in common bean (Phaseolus vulgaris). J Hered 93:148–152

  6. Park D, Maga JA (1999) Common bean (Phaseolus vulgaris L.) colour stability as influenced by time and moisture content. J Food Process Preserv 23:515–522

  7. Prakken R (1974) Inheritance of colours in Phaseolus vulgaris L. IV recombinations within the ‘complex locus C’. Meded. Landbouwhogeschool Wageningen 24:1–36

  8. Singh SP, Terán H, Lema M, Dennis MF, Hayes R (2006) Registration of slow darkening pinto bean germplasm line SDIP-1. Crop Sci 46:2726–2727

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Acknowledgments

Financial assistance for this project from the following is gratefully acknowledged: the Robert P. Knowles Scholarship Fund (HE), the Saskatchewan Pulse Growers Association and the Ontario Coloured Bean Growers Association. The authors also thank the Pulse Crop field crew at the CDC, University of Saskatchewan and Angela Nierop for technical assistance.

Author information

Correspondence to Kirstin E. Bett.

Additional information

Communicated by I. Rajcan.

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Elsadr, H.T., Wright, L.C., Peter Pauls, K. et al. Characterization of seed coat post harvest darkening in common bean (Phaseolus vulgaris L.). Theor Appl Genet 123, 1467–1472 (2011). https://doi.org/10.1007/s00122-011-1683-8

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Keywords

  • Seed Coat
  • Common Bean
  • Segregation Ratio
  • Inheritance Study
  • Expect Segregation Ratio