scholarly journals Genetic Analysis of Quantitative Characters by Diallel Cross in Cotton

2002 ◽  
Vol 12 (2) ◽  
pp. 213-218
Keyword(s):  
Genetic Analysis ◽  
Diallel Cross ◽  
Quantitative Characters

Establishment and genetic analysis of complete diallel cross families of pearl oyster (Pinctada fucata)

2010 ◽  
Vol 34 (1) ◽  
pp. 26-31
Author(s):  
Long-chun GU ◽  
Jin-bi LI ◽  
Da-hui YU ◽  
Gui-ju HUANG ◽  
Jian-ye LIU
Keyword(s):  
Genetic Analysis ◽  
Diallel Cross ◽  
Pearl Oyster ◽  
Pinctada Fucata ◽  
Complete Diallel Cross

Genetic Analysis of Half Diallel Matting with Different Methods and their Comparisons for Yield and its Associated Traits in Sunflower under Saline Soil Stress Conditions

Helia ◽  
2017 ◽  
Vol 40 (66) ◽  
Author(s):  
Mohamed Ali Abd El-Satar
Keyword(s):  
Genetic Analysis ◽  
Agricultural Research ◽  
Saline Soil ◽  
Block Design ◽  
Diallel Cross ◽  
Head Diameter ◽  
Physiological Maturity ◽  
Randomized Complete Block Design ◽  
Soil Stress ◽  
Half Diallel

AbstractA half diallel cross between five divergent sunflower genotypes was evaluated under two contrast locations of Kafr El-Hamam (fovourable soil as a control) and Tag Al-Ezz (as salt affected soil) Agricultural Research Stations using randomized complete block design with three replications. High significance variation among genotypes and their components was detected for all studied traits at both and combined locations. Selection in early generations would be effective at both locations for improving days to 50 % flowering, days to physiological maturity, plant height, head diameter, No. of green leaves plant

scholarly journals The Dawn of the Age of Multi-Parent MAGIC Populations in Plant Breeding: Novel Powerful Next-Generation Resources for Genetic Analysis and Selection of Recombinant Elite Material

Biology ◽  
2020 ◽  
Vol 9 (8) ◽  
pp. 229 ◽  
Author(s):  
Andrea Arrones ◽  
Santiago Vilanova ◽  
Mariola Plazas ◽  
Giulio Mangino ◽  
Laura Pascual ◽  
...  
Keyword(s):  
Genetic Analysis ◽  
Plant Breeding ◽  
Complex Traits ◽  
Genetic Recombination ◽  
Phenotypic Diversity ◽  
Recombinant Inbred Lines ◽  
Plant Genetic Resources ◽  
Diallel Cross ◽  
Genetic Mosaic ◽  
Selection Of

The compelling need to increase global agricultural production requires new breeding approaches that facilitate exploiting the diversity available in the plant genetic resources. Multi-parent advanced generation inter-cross (MAGIC) populations are large sets of recombinant inbred lines (RILs) that are a genetic mosaic of multiple founder parents. MAGIC populations display emerging features over experimental bi-parental and germplasm populations in combining significant levels of genetic recombination, a lack of genetic structure, and high genetic and phenotypic diversity. The development of MAGIC populations can be performed using “funnel” or “diallel” cross-designs, which are of great relevance choosing appropriate parents and defining optimal population sizes. Significant advances in specific software development are facilitating the genetic analysis of the complex genetic constitutions of MAGIC populations. Despite the complexity and the resources required in their development, due to their potential and interest for breeding, the number of MAGIC populations available and under development is continuously growing, with 45 MAGIC populations in different crops being reported here. Though cereals are by far the crop group where more MAGIC populations have been developed, MAGIC populations have also started to become available in other crop groups. The results obtained so far demonstrate that MAGIC populations are a very powerful tool for the dissection of complex traits, as well as a resource for the selection of recombinant elite breeding material and cultivars. In addition, some new MAGIC approaches that can make significant contributions to breeding, such as the development of inter-specific MAGIC populations, the development of MAGIC-like populations in crops where pure lines are not available, and the establishment of strategies for the straightforward incorporation of MAGIC materials in breeding pipelines, have barely been explored. The evidence that is already available indicates that MAGIC populations will play a major role in the coming years in allowing for impressive gains in plant breeding for developing new generations of dramatically improved cultivars.

scholarly journals Genetic analysis for panicle characters in diallel cross of rice

1970 ◽  
Vol 33 (4) ◽  
pp. 631-638
Author(s):  
KM Iftekharuddaula ◽  
MA Newaz ◽  
MA Salam ◽  
Khaleda Akter
Keyword(s):  
Genetic Analysis ◽  
Genetic Model ◽  
Branch Length ◽  
Diallel Cross ◽  
Primary Branch ◽  
Secondary Branch ◽  
Components Of Variance ◽  
Genetic Components ◽  
Recessive Genes ◽  
Dominant Genes

An experiment was carried out to study the genetic components for eight panicle characters in rice using an 8-parent half diallel cross excluding reciprocals during Transplant Aman season, 2003. The parental genotypes used in the study were BRRI dhan29, BR4828-54-4-l-4-9, BRR1 dhan28, 1R8, Amol3, 1R65610-38-2-4-2-6-3, Minikit and ZhongYu7, which were chosen for their diversity in panicle characters. Hayman's analysis of variance (ANOVA) indicated importance of both additive and non-additive genetic components for all the panicle characters except dominance component for filled grains/secondary branches. The ANOVA showed unidirectional dominance for the characters viz, primary branch length, secondary branch length, primary branches/panicle, secondary branches/panicle and filled grains/primary branch, asymmetrical gene distribution for all the panicle traits except filled grains/secondary branch and residual dominance effects for all the panicle characters studied. Two out of eight panicle characters viz., primary branches/panicle and unfilled grains/ secondary branch followed the simple additive-dominance genetic model. The rest of the panicle characters showed nonallelic gene interaction or epistasis. According to Vr-Wr graph, partial dominance was involved in the action of genes governing the inheritance of primary branches/panicle, while complete dominance was involved in the inheritance of unfilled grains/secondary branch. Most of the dominant genes for primary branches/panicle belonged to other hand, 1R8 possessed most of the dominant genes, while 1R65610-38-2-4-2-6-3 possessed most of the recessive genes for unfilled grains/secondary branch. The estimates of components of variance demonstrated involvement of both additive and dominant components in the inheritance of primary branches/panicle and unfilled grains/secondary branch. The distribution of dominant and recessive genes was unequal in the parents for these two characters also. There was drastic influence of environment on these two panicle characters following simple additive-dominance genetic model. Heritability in narrow sense (h2 ns) was very high for primary branches/panicle and unfilled grains/secondary branch. Key Words: Genetic analysis, diallel cross, panicle characters, rice. doi: 10.3329/bjar.v33i4.2307 Bangladesh J. Agril. Res. 33(4) : 631-638, December 2008

DIALLEL ANALYSIS OF THE INHERITANCE OF QUANTITATIVE CHARACTERS IN CABBAGE (BRASSICA OLERACEA L. VAR. CAPITATA L.)

1969 ◽  
Vol 11 (1) ◽  
pp. 103-109 ◽  
Author(s):  
Morgan S. Chiang
Keyword(s):  
Inner Core ◽  
Diallel Analysis ◽  
Diallel Cross ◽  
Effective Factors ◽  
Quantitative Characters ◽  
Equatorial Diameter ◽  
Equal Importance ◽  
Days To Maturity ◽  
Polar Diameter ◽  
Brassica Oleracea L

Additivity of inheritance of length of inner core and days to maturity appeared to be rather important in this diallel cross of cabbage. Equal importance of additivity and dominance was observed in polar diameter and equatorial diameter of cabbage heads. Dominance contributed a large portion of genetic variation in yield while number of wrapper leaves varied with environment. However, there were indications that overdominance was also involved in all characters except polar diameter and days to maturity. The effective factors controlling each character ranged from one to three. The heritability values were high for polar diameter and days to maturity, moderate for number of wrapper leaves and length of inner core, and low for equatorial diameter and yield.

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