Genetic Diversity of Seed Orchard Crops

Ertekin, Murat

doi:10.5772/33802

Cited by 5 publications

(3 citation statements)

References 27 publications

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“…Seed orchards are basically established to achieve four significant purposes. These are; a) To obtain seeds with a high genetic and physiological value that will enable the formation of trees with superior genetic characteristics, b) To obtain trees that can adapt to certain regions with their superior genetic characteristics, c) To obtain genetically superior seeds, which enable the formation of trees with the desired genetic characteristics, in greater quantity and more economically, d) To ensure the protection of individuals belonging to species or races with superior genetic characteristics (El-Kassaby et al, 1989;Ertekin, 2012;Bilgen & Kaya, 2014).…”

Section: Conifer Seed Orchardsmentioning

confidence: 99%

“…The first clonal seed orchard was established on the island of Java/Netherlands in 1880 for the Cinchona ledgeriana species (Feilberg & Soegaard, 1975;Ertekin, 2012). In Türkiye, the first seed orchards were established in 1964 in Istanbul-Belgrad Forest with black pine and yellow pine species by the Istanbul University Faculty of Forestry Department of Silviculture and Afforestation (Tunçtaner, 2007).…”

Section: Conifer Seed Orchardsmentioning

confidence: 99%

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Microsatellite Markers: The Efficient Method for the Determination of Pollen Contamination in Conifer Seed Orchards

Bilgen,

Kaya

2023

IJIAAR

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Seed orchards are specialized forest plantations of genetically superior candidate parents selected to produce genetically superior seeds and/or seedlings. Pollen contamination is one of the most important factors affecting the yield, adaptation, and genetic quality of seeds produced from seed orchards in forest tree breeding programs. Potential pollen from forests surrounding the seed orchard is a major concern in tree breeding because it contributes to the loss in genetic gains expected from seed orchard crops.Microsatellite markers are among the most effective markers that are frequently used for creating genetic maps of many species, determining genetic diversity, identifying genetic diseases, population genetic studies, linkage analysis, fingerprint analysis, genotyping, and parental identification. In this study, a bibliometric analysis was performed to quantitatively and qualitatively evaluate the articles published in the last 25 years on seed orchards and pollen contamination. Searching the Web of Science (WOS) with the criteria of "forest trees" and "seed orchards" revealed that 820 articles were published in the last 25 years. It is seen that 77 of these articles are related to pollen contamination. Canada, China, Japan, Sweden, and the USA have been the top contributors to research on pollen contamination in seed orchards of forest trees in the last 25 years, respectively. According to the data obtained, it has been shown that the genetic contamination level of forest tree species in seed orchards is generally between 5% and 90%. It has been determined that microsatellite markers are more widely used in recent years to determine the degree of pollen migration and genetic contamination. It was concluded that studies on pollen contamination were carried out in only two Turkish red pine orchards in Türkiye, which has a total of 189 seed orchards, the majority of which belong to conifers, and that similar studies should be planned in other seed orchards.

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Section: Conifer Seed Orchardsmentioning

confidence: 99%

Section: Conifer Seed Orchardsmentioning

confidence: 99%

Microsatellite Markers: The Efficient Method for the Determination of Pollen Contamination in Conifer Seed Orchards

Bilgen,

Kaya

2023

IJIAAR

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“…According to Ertekin (2012), the genetic gain is directly related to the genetic diversity of the target population. Thus, plant variability is key to obtain a continuous gain in the development of superior genotypes.…”

Section: Introductionmentioning

confidence: 99%

Increasing genetic variability in black oats using gamma irradiation

Silveira¹,

Moliterno²,

Ribeiro³

et al. 2014

Genet. Mol. Res.

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ABSTRACT. The black oat (Avena strigosa Schreb) is commonly used for forage, soil cover, and green manure. Despite its importance, little improvement has been made to this species, leading to high levels of genotypic disuniformity within commercial cultivars. The objective of this study was to evaluate the efficiency of different doses of gamma rays [60 Co] applied to black oat seeds on the increase of genetic variability of agronomic traits. We applied doses of 0, 10, 50, 100, and 200 Gy to the genotype ALPHA 94087 through exposure to [ 60 Co]. Two experiments were conducted in the winter of 2008. The first aimed to test forage trait measurements such as plant height, dry matter yield, number of surviving tillers, and seedling stand. The second test assessed seed traits, such as yield and dormancy levels. Gamma irradiation seems not to increase seed yield in black oats, but it was 10333©FUNPEC-RP www.funpecrp.com.br Genetics and Molecular Research 13 (4): 10332-10340 (2014) Genetic variability in black oats effective in generating variability for the other traits. Tiller number and plant height are important selection traits to increase dry matter yield. Selection in advanced generations of mutant populations can increase the probability of identifying superior genotypes.

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