ИСТРАЖУВАЊА ЗА ГЕНИТЕ И НИВНОТО ДЕЈСТВО ВО НАСЛЕДУВАЊЕТО НА СВОЈСТВАТА КАЈ ТУТУНОТ (Nicotiana tabacum L.) (RESEARCH FOR THE GENES AND THEIR ACTIVITIES IN INHERITANCE OF PROPERTIES IN TOBACCO (Nicotiana tabacum L.)

Korubin - Aleksoska, Ana and Risteski, Ilija (2010) ИСТРАЖУВАЊА ЗА ГЕНИТЕ И НИВНОТО ДЕЈСТВО ВО НАСЛЕДУВАЊЕТО НА СВОЈСТВАТА КАЈ ТУТУНОТ (Nicotiana tabacum L.) (RESEARCH FOR THE GENES AND THEIR ACTIVITIES IN INHERITANCE OF PROPERTIES IN TOBACCO (Nicotiana tabacum L.). Списание на трудови на ДНУ (24/25). pp. 53-63.

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Abstract

Polygenes are group of genes which are carriers of quantitative traits, inherited from parental genotypes to their progenies. Gene action is estimated through diallel analysis. The paper presents investigations of genes for inheritance of stalk height, leaf number and green mass yield per stalk in four pairs of parents (Prilep P 12-2/1, Pobeda P-2, Yaka YV 125/3 and Forchheimer orgodowni – FO) and their six F1 and six F2 hybrids. Crossings where made in 2004 and 2005 and the trial was set up in 2006, at a Trial field of Tobacco lnstitute - Prilep, in a randomized block design with four replications. The aim of the paper is to define the inheritance of traits by estimating of effective factors number of genes (k) and their additive (d) and dominant (h) effects, which will be a significant contribution to the quantitative genetics of tobacco. Analyses and assessment were made according to methods and mathematical models developed by B.I. Hayman, K. Mather and J.J. Jinks. The additive gene action in all variants is greater than the dominant one, indicating domination of additive genes in inheritance of the traits. Values of the effective factors are very low and insufficient for their estimation. The highest gene action was recorded in YV 125/3 for the trait area of the middle belt leaves. Positive values of dominant gene actions for inheritance of leaf number, middle belt leaf area and green mass yield per stalk in both generations investigated, and also for dry mass yield per stalk in F2 generation indicate domination of the stronger parent. On the other hand, negative values for stalk height in both generations and for dry mass yield per stalk in F2 generation show a dominance of the weaker parent. The results obtained are of great interest for genetics and tobacco breeding, and the methods are applicable for many other crops.

Item Type: Article
Uncontrolled Keywords: tobacco (Nicotiana tabacum L.), diallel analysis, inheritance, genotype components, effective factors, additive and dominant gene actlon.
Subjects: Scientific Fields (Frascati) > Agricultural Sciences > Agriculture, forestry and fisheries
Divisions: Scientific Tobacco Institute
Depositing User: Prof. d-r. Ana Korubin - Aleksoska
Date Deposited: 11 Apr 2020 14:49
Last Modified: 11 Apr 2020 14:49
URI: http://eprints.uklo.edu.mk/id/eprint/4929

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