INHERITANCE OF LONG AND DENSE CAPSULE CHARACTERISTICS IN SESAME

Year 2017, Volume: 22 Issue: 1, 8 - 13, 28.03.2017

Engin Yol

https://doi.org/10.17557/tjfc.301888

Cited By: 1

Abstract

Long and dense capsule characteristics in sesame (Sesamum indicum L.) are associated with high seed yield. Therefore, inheritance of long and dense capsule and their genetic association were investigated in a cross of “Muganli-57 (♀)” with short and sparse capsule with “ACS 352 (♂)” having long and dense capsule. In the F1, long and dense capsule characteristics were dominant over short and sparse capsules. In the F2, 12:3:1 segregation ratio revealed that long capsule character had dominance with epistasis over dense capsule. The presence of the dominant Ln allele (long capsule) masked the effects of either Dn or dn alleles (dense capsule). The expected 12:3:1 segregation ratio in F2 was confirmed in F3. The results suggested that positive selection for long and dense capsule characteristics in sesame should be given high priority to reach ideal plant type with high seed yield potential.

Keywords

Capsule length, capsule density, epistasis, genetics, Sesamum indicum L.

INHERITANCE OF LONG AND DENSE CAPSULE CHARACTERISTICS IN SESAME

Abstract

Long and dense capsule characteristics in sesame (Sesamum indicum L.) are associated with high seed yield.
Therefore, inheritance of long and dense capsule and their genetic association were investigated in a cross of
“Muganli-57 (♀)” with short and sparse capsule with “ACS 352 (♂)” having long and dense capsule. In the F1,
long and dense capsule characteristics were dominant over short and sparse capsules. In the F2, 12:3:1
segregation ratio revealed that long capsule character had dominance with epistasis over dense capsule. The
presence of the dominant Ln allele (long capsule) masked the effects of either Dn or dn alleles (dense capsule).
The expected 12:3:1 segregation ratio in F2 was confirmed in F3. The results suggested that positive selection
for long and dense capsule characteristics in sesame should be given high priority to reach ideal plant type
with high seed yield potential. 

Keywords

Capsule density, capsule length, epistasis, genetics, Sesamum indicum L.

References

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• Ashri A. 1988. Sesame breeding-objectives and approaches. In: Oil Crops-Sunflower, Linseed and Sesame. Proceedings of the 4th Oil Crops Network Workshop, Njoro, Kenya, January 1988, IDRC-MR205e. Ottawa: IDRC, pp. 152–164.
• Ashri, A. 1989. Sesame. In: Oil Crops of the World: Their Breeding and Utilization, eds. Robbelen, G., Downey R.K. and Ashri A., 375-387, McGraw Hill Publ. Company