Sex-Linked and Maternal Effects in the Diallel Cross

The diallel cross has been used frequently in plant experiments to partition the genetic variation into general and specific combining abilities of inbred lines. The statistical models developed for analysis of diallel crosses in plants have been used in a number of studies of diallel crosses in mammals and poultry, without due consideration to the presence and effect of the sex chromosomes.

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Estimation of general and specific combining abilities from a diallel cross of three inbred lines of Fayoumi chicks

Genetics Selection Evolution ◽

10.1186/1297-9686-9-3-387 ◽

1977 ◽

Vol 9 (3) ◽

pp. 387

Author(s):

M Soltan ◽

FH Abdou ◽

M Abd-Ellatif ◽

H Ayoub

Keyword(s):

Diallel Cross ◽

Inbred Lines ◽

Combining Abilities

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Genetic variability in time to germination of sugar-beet clusters

The Journal of Agricultural Science ◽

10.1017/s0021859600015598 ◽

1971 ◽

Vol 76 (1) ◽

pp. 27-32 ◽

Cited By ~ 7

Author(s):

J. P. Battle ◽

W. J. Whittington

Keyword(s):

Genetic Variation ◽

Genetic Variability ◽

Sugar Beet ◽

Maternal Effects ◽

Diallel Cross ◽

Wild Form ◽

Maternal Parent ◽

Germination Characteristics ◽

Heritability Estimates

SUMMARYAn analysis of germination characteristics of progeny from a diallel cross between five sugar-beet plants showed that the genotype of the maternal parent controlled to a marked extent the behaviour of the progeny. This may be related to the presence in the fruits of inhibitory substances.Some evidence was found for genie and maternal interactions but these were always of less importance than the maternal effects. Heritability estimates from parent, off spring regression and analysis of half-sib family variances demonstrated that genetic variation for germination characteristics had not been eliminated during the improvement of sugar beet from the wild form.

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Combining Abilities for Seven Elite Yellow Maize Inbred Lines in a Half - Diallel Cross

Egyptian Journal of Plant Breeding ◽

10.12816/0011662 ◽

2013 ◽

Vol 17 (6) ◽

pp. 53-62

Author(s):

S. A. M. Shaboon ◽

A. A. Abd El-Mottalb ◽

W. M. El-Sayed ◽

M. A. A. Mostafa

Keyword(s):

Diallel Cross ◽

Inbred Lines ◽

Combining Abilities ◽

Maize Inbred Lines ◽

Half Diallel

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Combining Abilities for Yield and Yield Components in Diallel Crosses of Six New Yellow Maize Inbred Lines

International Journal of Plant Breeding and Genetics ◽

10.3923/ijpbg.2015.86.94 ◽

2015 ◽

Vol 9 (2) ◽

pp. 86-94

Author(s):

M.A. Abdel- Moneam ◽

M.S. Sultan ◽

S.E. Sadek ◽

M.S. Shalof

Keyword(s):

Yield Components ◽

Inbred Lines ◽

Diallel Crosses ◽

Combining Abilities ◽

Maize Inbred Lines ◽

Yield And Yield Components

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Combining ability of maize inbred lines evaluated in three environments in Brazil

Scientia Agricola ◽

10.1590/s0103-90162000000100021 ◽

2000 ◽

Vol 57 (1) ◽

pp. 129-134 ◽

Cited By ~ 10

Author(s):

Luciano Lourenço Nass ◽

Marlene Lima ◽

Roland Vencovsky ◽

Paulo Boller Gallo

Keyword(s):

Combining Ability ◽

Agronomic Traits ◽

Diallel Cross ◽

Inbred Lines ◽

Environment Interaction ◽

Yield Data ◽

Diallel Crosses ◽

Lattice Design ◽

Grain Moisture ◽

Tropical Areas

For tropical areas like Brazil, genotype x environment interaction is an important source of variation. Our objectives were to examine the combining abilities and their interaction with environments in ten selected maize (Zea mays L.) inbred lines in diallel crosses and to identify candidates for promising hybrid combinations. Crosses and checks were evaluated through a 7 x 7 triple lattice design at three locations during the 1984/85 season. Several agronomic traits were evaluated, but here only data on ear yield are discussed. Yield data were adjusted for stand variation (correction to 50 plants per plot) and grain moisture (15.5%). Data for ear yield were analysed using an adaptation of Griffing’s method IV for complete diallel crosses, and experiments were repeated in several environments. The means of the crosses over all environments ranged from 6.6 t/ha to 10.3 t/ha. The combining ability analysis of diallel data across environments showed highly significant (P<0.01) effects for environment, general combining ability (GCA), specific combining ability (SCA), and GCA x environment interaction. The SCA x environment interaction was not significant. Results showed that both GCA and SCA were important for this diallel cross. Considering the 13 hybrids that showed higher yields than the commercial hybrid controls, contributions by GCA and SCA effects were 56% and 44%, respectively. On the other hand, selecting only the best five hybrids, SCA effects were always more important than GCA effects for each environment and over all environments.

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Combining abilities and genetic resemblance of maize inbred lines

Acta Agronomica Hungarica ◽

10.1556/aagr.54.2006.3.8 ◽

2006 ◽

Vol 54 (3) ◽

pp. 337-342 ◽

Cited By ~ 3

Author(s):

J. Srdić ◽

S. S. Mladenović-Drinić ◽

Z. Pajić

Keyword(s):

Molecular Markers ◽

Genetic Distance ◽

Rapd Markers ◽

Genetic Parameters ◽

Diallel Cross ◽

Inbred Lines ◽

Protein Markers ◽

Heterotic Groups ◽

Combining Abilities ◽

Maize Inbred Lines

A diallel cross between ten maize inbred lines was carried out to estimate genetic parameters for grain yield and determine the heterosis and combining abilities of the inbreds and their crosses. Highly significant values for both GCA and SCA were found concerning this trait. The genetic distance (GD) of ten inbreds was evaluated using protein and RAPD markers. The GD based on protein markers ranged from 0.094, found between two lines of the same origin, up to 0.359 between two pairs of inbreds originating from different heterotic groups. Similar results were obtained with RAPD, where both extremes were found among the same F1 combinations. The reliability of the application of molecular markers was confirmed by the highly significant values of the correlations between GD/heterosis and GD/SCA, especially based on RAPD.

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