Augmented Partial Diallel Cross Based on Circulant Sample

Abstract: The objective of this work was to evaluate the potential per se of male-sterile and fertility-restorer lines of sweet sorghum (Sorghum bicolor), as well as to detail the heterosis manifested for some traits directly or indirectly related to ethanol production, accumulation rate, and predictability. Evaluations were performed for 20 genotypes, of which 4 are fertility-restorer lines (R), 3 are male-sterile lines (A), and 12 are experimental hybrids (H) resulting from the partial diallel cross between lines A and R, besides a commercial hybrid CV198 used as a check, in four harvest seasons. The experiments were carried out in the municipalities of Lavras and Sete Lagoas, in the state of Minas Gerais, Brazil. The measured traits were plant height, green mass production, juice extraction, total soluble solids content, and megagrams of Brix per hectare. The male-sterile A1 and the fertility-restorer R1 and R3 lines show the best potential per se, considering all traits and their accumulation rate and predictability over harvest times. Heterosis is significant for all traits. The H11, H13, H14, H21, H22, and H33 hybrids are promising because of their better performance per se and higher heterosis.

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The augmented partial diallel cross

Heredity ◽

10.1038/hdy.1980.30 ◽

1980 ◽

Vol 44 (3) ◽

pp. 327-331 ◽

Cited By ~ 6

Author(s):

D G Pederson

Keyword(s):

Diallel Cross ◽

Partial Diallel

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Variance component analysis for viability in an isolated population of Drosophila melanogaster

Genetics Research ◽

10.1017/s0016672300021662 ◽

1983 ◽

Vol 42 (2) ◽

pp. 207-217 ◽

Cited By ~ 7

Author(s):

Hidenori Tachida ◽

Muneo Matsuda ◽

Shin-Ichi Kusakabe ◽

Terumi Mukai

Keyword(s):

Drosophila Melanogaster ◽

Genetic Variance ◽

Balancing Selection ◽

Additive Genetic Variance ◽

Diallel Cross ◽

Variance Component Analysis ◽

Logarithmic Scale ◽

Dominance Variance ◽

Diversifying Selection ◽

Partial Diallel

SUMMARYUsing the 602 second chromosome lines extracted from the Ishigakijima population of Drosophila melanogaster in Japan, partial diallel cross experiments (Design II of Comstock & Robinson, 1952) were carried out, and the additive genetic variance and the dominance variance of viability were estimated. The estimated value of the additive genetic variance is 0·01754±0·00608, and the dominance variance 0·00151±0·00114, using a logarithmic scale. Since the value of the additive genetic variance is much larger than expected under mutation–selection balance although the dominance variance is compatible with it, we speculate that in the Ishigakijima population some type of balancing selection must be operating to maintain the genetic variability with respect to viability at a minority of loci. As candidates for such selection, overdominance, frequency-dependent selection, and diversifying selection are considered, and it is suggested that diversifying selection is the most probable candidate for increasing the additive genetic variance.

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Additive and Heterotic Genetic Effects in the Haplo-diploid Honeybee Apis Mellifera

Australian Journal of Biological Sciences ◽

10.1071/bi9870057 ◽

1987 ◽

Vol 40 (1) ◽

pp. 57 ◽

Cited By ~ 3

Author(s):

BP Oldroyd ◽

C Moran

Keyword(s):

Apis Mellifera ◽

Analysis Of Variance ◽

Combining Ability ◽

Diallel Cross ◽

Genetic Effects ◽

Reciprocal Effects ◽

Combining Ability Analysis ◽

Additive Genetic Effects ◽

Partial Diallel

Nine lines of honeybees were used to form a 9 x 9 partial diallel cross. Hamuli number was determined for samples of worker offspring. One set of workers was reared in non-maternal colonies which had been made uniform, as far as possible, with respect to colony strength (number of workers), while another set was sampled directly from the combs of each maternal colony. Combining ability analysis of variance revealed significant additive and non-additive genetic effects for both sets of data, regardless of whether inbred parentals were included or excluded from the analysis. Uniform rearing removed average heterosis and reciprocal effects.

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PARTIAL DIALLEL CROSS ANALYSIS AMONG THREE BREEDS OF PIG FOR PRODUCTIVE AND REPRODUCTIVE TRAITS

Jurnal Sains dan Teknologi Indonesia ◽

10.29122/jsti.v12i1.846 ◽

2012 ◽

Vol 12 (1) ◽

Author(s):

Edy Kurnianto ◽

Mukh Arifin ◽

Prasetyo Nugroho

Keyword(s):

Litter Size ◽

Combining Ability ◽

Reproductive Traits ◽

Diallel Cross ◽

General Combining Ability ◽

Partial Diallel

Suatu penelitian telah dilakukan untuk mengevaluasi general combining ability (GCA) dan specific cobining ability (SCA) untuk sifat produksi dan reproduksi pada babi. Materi yang digunakan adalah catatan keturunan hasil persilangan tiga bangsa babi (Duroc, Landrace, Yorkshire) sebanyak 573 anak babi yang berasal dari 13 pejantan dan 65 induk. Formula yang digunakan untuk menganalisis parameter adalah Partial Diallel Cross Metode II dari Griffings. Parameters yang diamati pada anak adalah litter size, bobobt lahir, jumlah puting, pertambahan bobot badan (PBB) sebelum dan sesudah sapih dan bobot sapih. Hasil penelitian menunjukkan bahwa GCA Duroc lebih tinggi dibandingkan Yorksire and Landrace, yang nilai GCA untuk litter size, bobot lahir, jumlah puting, jumlah anak pada saat sapih, bobot sapih, PBB sebelum sapih, PBB setelah sapih dan bobot badan pada umur 42 hari masing-masing -0,18; -0,02; -0,52; -0,13; -0,21; -0,01; 0,01 dan 0,03. Persiilangan antara Duroc x Yorkshire menunjukkan SCA paling tinggi untuk bobot lahir (0.30), jumlah puting (3.60), bobot sapih (1.10) dan PBB sebelum sapih (0.04). Persilangan antara Yorkshire x Landrace menghasilkan SCA paling tinggi untuk litter size (2.47), jumlah anak waktu sapih (2.23), PBB sebelum sapih (0.04), PBB setelah sapih (0.06) and bobot badan pada umur 42 hari (2.30). Kesimpulan penelitian ini adalah nilai paling baik untuk GCA ditunjukkan oleh Duroc, sementara itu SCA oleh persilangan antara Yorkshire x Landrace.

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