Diallel crosses have been used in genetic research to determine the inheritance of important traits among a set of genotypes and to identify superior parents for hybrid or cultivar development. Conventional diallel analysis is limited to partitioning the total variation of the data into general combining ability (GCA) of each genotype and specific combining ability (SCA) of each cross. In this ...

Genus Morus includes more than 20 species, some of which are commercially important mulberries with different utilities. Even though these species propagated by rooting cuttings in practice, mulberry seeds importance for breeding studies and rootstock seedling propagation. For that reason, this study was conducted to know the seed performance germination emergence traits four varieties viz, V1,...

Ten tomato commercial and productive single cross hybrids extensively grown in Northern Transitional Zone of Karnataka were planted in the field at UAS, Dharwad following RBD design with three replications. A 10 x 10 diallel set was generated by crossing these single cross hybrids in all possible combinations (excluding reciprocals) and 45 double cross hybrids were planted during February, 2007...

Estimation of mating system parameters in plant populations typically employs family-structured samples of progeny genotypes. These estimation models postulate a mixture of self-fertilization and random outcrossing. One assumption of such models concerns the distribution of pollen genotypes among eggs within single maternal families. Previous applications of the mixed mating model to mating sys...

Multi-parent crossovers have been validated their outperformance on several optimization problems. However, there are two issues to be considered – the number of parents and the disruptiveness caused by multiple parents. This paper presents a tabu multi-parent genetic algorithm (TMPGA) to address these two issues by integrating tabu search into the mating of multi-parent genetic algorithms. TMP...

Monoterpene patterns of different larch species (Larix deci-dua, Larix kaempferi, Larix sibirica, Larix gmelinii). In: Results and future trends in larch breeding on the basis of provenance research. Abstract Procedures to analyze half-diallel mating designs using the SAS statistical package are presented. The procedure requires two runs of PROC VARCOMP and results in estimates of additive and ...

Heterosis over better parent for seed yield and its component traits were studied in 28 crosses derived from a diallel mating involving 8 diverse parents of lentil. For seed yield heterosis ranged from -1.73 to 48.35 (%). Twenty two crosses had positive and significant heterosis for seed yield, out of them 9 crosses viz., DPL 62 x K 75, PL 4 x K 75, B 18 x Lens 830, PL 4 x B 18, B 18 x K 75, PL...

In this study, conducted in two different seasons, we aimed to choose parents to obtain promising segregating populations for the extraction of black bean (Phaseolus vulgaris L.) lines that are superior in terms of disease resistance, plant architecture, and grain yield. Twelve parents were arranged in two groups to compose a partial diallel in a 5 x 7 scheme. Group 1 was composed of parents wi...

Many Drosophila species exhibit genetic variation in traits affecting mate choice (Scott & Richmond, 1988; MarõÂn, 1994; Aspi & Hoikkala, 1995). This variation forms the basis for sexual selection (exercised) by the females within a species and may also give rise to isolation between geographically separated populations (Markow, 1991). Studies on genetic variation in traits affecting mate choic...

Previous studies demonstrated that mitochondrial DNA (mtDNA) was uniparentally transmitted in laboratory crosses of the pathogenic yeast Cryptococcus neoformans. To begin understanding the mechanisms, this study examined the potential role of the mating-type locus on mtDNA inheritance in C. neoformans. Using existing isogenic strains (JEC20 and JEC21) that differed only at the mating-type locus...