Effect of inbreeding and heritability of sperm competition in the bulb mite Rhizoglyphus robini

Article Abstract:

The heritability value for sperm competition success observed in the bulb mite Rhizoglyphus robini, within the range of heritability values for life-history traits under strong directional selection is reported. The results reveal that males produced by sib-mating (F=0.25) have a significant lower sperm competition success than outbred males.

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Inbreeding depression in fecundity and inbred line extinction in the bulb mite, Rhizoglyphus robini

Article Abstract:

Research has been co0nducted on inbreeding depression in fecundity in bulb mite Rhizoglyphus robini. The author suggests that the lack of purging in inbreeding depression may indicate that this depression has been caused either by detrimental genes or by the breaking down of overdominant relations between alleles.

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Yield stability in Coffea canephora from diallel mating design monitored for 14 years

Article Abstract:

Research has been conducted on Coffea canephora. The authors have investigated the genetic parameters of agronomic traits in this species in a triangular and partial diallels with different number of parents, and they report the results.

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