scholarly journals Formation of Potential Heterotic Groups of Oat Using Variation at Microsatellite Loci

Plants ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 2462
Author(s):  
Michaela Havrlentová ◽  
Katarína Ondreičková ◽  
Peter Hozlár ◽  
Veronika Gregusová ◽  
Daniel Mihálik ◽  
...  
Keyword(s):  
Genetic Differentiation ◽  
Avena Sativa ◽  
Microsatellite Loci ◽  
Field Testing ◽  
Fixation Index ◽  
Heterotic Groups ◽  
Naked Oat ◽  
Extensive Field ◽  
Heterotic Grouping ◽  
Naked Oats

An evaluation of polymorphism at the microsatellite loci was applied in distinguishing 85 oat (Avena sativa L.) genotypes selected from the collection of genetic resources. The set of genotypes included oats with white, yellow, and brown seeds as well as a subgroup of naked oat (Avena sativa var. nuda Koern). Variation at these loci was used to form potential heterotic groups potentially used in the oat breeding program. Seven from 20 analyzed microsatellite loci revealed polymorphism. Altogether, 35 microsatellite alleles were detected (2–10 per locus). Polymorphic patterns completely differentiated all genotypes within the subgroups of white, brown, and naked oats, respectively. Only within the greatest subgroup of yellow genotypes, four pairs of genotypes remained unseparated. Genetic differentiation between the oat subgroups allowed the formation of seven potential heterotic groups using the STRUCTURE analysis. The overall value of the fixation index (Fst) suggested a high genetic differentiation between the subgroups and validated a heterotic grouping. This approach can be implemented as a simple predictor of heterosis in parental crosses prior to extensive field testing or development and implementation of more accurate genomic selection.

scholarly journals A comparison of husked and naked oats under Irish conditions

2018 ◽  
Vol 57 (1) ◽  
pp. 1-8 ◽  
Author(s):  
R. Hackett
Keyword(s):  
Grain Yield ◽  
Avena Sativa ◽  
Grain Quality ◽  
Nutritive Value ◽  
Field Experiments ◽  
Naked Oat ◽  
Oat Cultivars ◽  
Naked Oats ◽  
Kernel Yield

AbstractDuring the harvesting of husked oats (Avena sativa L.), the kernel remains tightly enclosed by a lignified lemma and palea, collectively termed the husk or hull. In naked oats, which are the same species as husked oats, the lemma is much less lignified and the kernel threshes free during harvesting. The absence of the largely indigestible husk increases the nutritive value of naked oats compared to that of husked oats, particularly for non-ruminants and poultry. There is little information regarding the potential of naked oats as an arable crop in Ireland. The objective of this study was to determine the productivity of naked oats under Irish conditions. Field experiments were carried out in the south east of Ireland to compare the grain yield and grain quality of both autumn-sown and spring-sown naked and husked oat cultivars. Grain yield of naked oat cultivars was significantly lower than that of husked oat cultivars, irrespective of whether they were autumn sown or spring sown. However, when the kernel yield of husked oat cultivars was estimated, differences in yield between the two types were much smaller, and in some cases, kernel yield of naked oat cultivars exceeded that of husked oat cultivars. Grain quality, as indicated by hectolitre weight and grain N concentration, was generally greater for naked oat cultivars than for husked oat cultivars. It is concluded that under Irish conditions, naked oats have the potential to produce kernel yields equivalent to husked oats. The grain produced is of high quality and may be particularly suited for the nutrition of non-ruminants.

scholarly journals The use of DNA markers for genetic differentiation of common (Avena sativa L.) and naked oat (Avena nuda L.)

2021 ◽  
Vol 22 (2) ◽  
pp. 329-340
Author(s):  
Barbara Pipan ◽  
Lovro Sinkovič ◽  
Romana Rutar ◽  
Vladimir Meglič
Keyword(s):  
Genetic Differentiation ◽  
Avena Sativa ◽  
Dna Markers ◽  
Naked Oat ◽  
Avena Nuda

Genetic Differentiation of the Round Goby (Neogobius melanostomus) from Certain Localities of the Black and Azov Sea Basin Using Microsatellite Loci

2021 ◽  
Vol 55 (3) ◽  
pp. 236-247
Author(s):  
S. I. Tarasjuk ◽  
V. V. Zamorov ◽  
O. V. Zaloilo ◽  
O. Iu. Bielikova ◽  
D. B. Radionov
Keyword(s):  
Genetic Differentiation ◽  
Microsatellite Loci ◽  
Round Goby ◽  
Neogobius Melanostomus ◽  
Azov Sea

scholarly journals Genetics of naked grain oats in crosses with Brazilian genotypes

2000 ◽  
Vol 23 (4) ◽  
pp. 851-854 ◽  
Author(s):  
Cândida Braga Cabral ◽  
Sandra Cristina Kothe Milach ◽  
Luiz Carlos Federizzi ◽  
Cristhiane Abegg Bothona ◽  
Ivone Taderka ◽  
...  
Keyword(s):  
Avena Sativa ◽  
Major Gene ◽  
Incomplete Dominance ◽  
Naked Oat ◽  
The Usa ◽  
Selection For

Six crosses between three naked oat (Avena sativa L.) germplasm sources from the USA and Australia and three Brazilian hulled genotypes were studied for the segregation of naked grain and multiflorous spikelet traits in the F2 and F3 generations. One major gene with incomplete dominance and expressivity for both traits was identified in all populations. The occurrence of intermediate types for naked grain varied with the population and did not depend on the germplasm source of naked grain used. The frequency of intermediate types varied among F2 populations indicating that selection for higher expressivity of naked grain could be used to develop Brazilian oat lines with naked grain.

scholarly journals MICROSATELLITE POLYMORPHISM WITHIN TWO LAKE BAIKAL OILFISH SPECIES (COMEPHORUS LACEPEDE, 1801)

2007 ◽  
Vol 5 (2) ◽  
pp. 50-57 ◽  
Author(s):  
Veronika I Teterina ◽  
Lubov V Sukhanova ◽  
Sergey V Kirilchik
Keyword(s):  
Genetic Polymorphism ◽  
Genetic Differentiation ◽  
Lake Baikal ◽  
Microsatellite Loci ◽  
Passive Transfer ◽  
Microsatellite Analysis ◽  
Microsatellite Polymorphism ◽  
Baikal Lake ◽  
Water Currents ◽  
Cottus Gobio

Intraspecific genetic polymorphism of a Baikal Lake endemic, big Baikal oilfish (Comephorus baicalensis Pallas, 1776), was evaluated based on microsatellite analysis. The obtained results have compared to the results received earlier for a little Baikal oilfish (C. dybowski Korotneff, 1905). Six microsatellite loci designed for the European sculpin, Cottus gobio, were used. Big Baikal oilfish samples were tested from the three Baikal trenches (southern, middle, northern). Average values of F<sub>ST</sub> and R<sub>ST</sub>indexes between the samples did not exceed 0,02 that point to weak intraspecific genetic differentiation. Big Baikal oilfish had the smaller allele variety, the greater deficit of heterozygotes and presence of low-molecular alleles in comparison with little Baikal oilfish. The values of genetic differentiation were equaled F<sub>ST</sub> = 0,138 and R<sub>ST</sub> = 0,244 for all loci between cumulative samples of little and big Baikal oilfish. Analysis of microsatellite polymorphism has showed that both a big and little Baikal oilfishes are represented by single populations. The factor promoting panmixia within the Baikal oilfish species is apparently a passive transfer of juvenile and adult fishes by water currents.

Genetic Differentiation of the Wolf Canis lupus L. Populations from Siberia at Microsatellite Loci

2020 ◽  
Vol 56 (1) ◽  
pp. 59-68 ◽  
Author(s):  
M. S. Talala ◽  
A. Ya. Bondarev ◽  
E. S. Zakharov ◽  
D. V. Politov
Keyword(s):  
Genetic Differentiation ◽  
Canis Lupus ◽  
Microsatellite Loci

Experience with Field Testings of SHE on Research Catchments

1984 ◽  
Vol 15 (4-5) ◽  
pp. 283-294 ◽  
Author(s):  
Børge Storm ◽  
K. Høgh Jensen
Keyword(s):  
New Zealand ◽  
Soil Water ◽  
Flow Model ◽  
Complete System ◽  
Field Testing ◽  
Practical Applications ◽  
Extensive Field ◽  
Soil Water Flow ◽  
Hydrologic System ◽  
The Individual

The development of the European Hydrologic System (SHE) has now reached such a stage, that it is ready for practical applications. Extensive field testings and associated developments have been carried out in recent years. The testings have included the complete system as well as the individual components. Particular emphasis has been given to the development and testing of the soil water flow model. The paper demonstrates results from a field testing of SHE on the Wye Catchment in Britain, as well as examples of applications on small experimental catchments in Germany and New Zealand.

scholarly journals Morphological and biochemical characterization of spikelet development in naked oats (Avena sativa)

1996 ◽  
Vol 134 (1) ◽  
pp. 5-12 ◽  
Author(s):  
HELEN J. OUGHAM ◽  
GALINA LATIPOVA ◽  
JOHN VALENTINE
Keyword(s):  
Avena Sativa ◽  
Biochemical Characterization ◽  
Naked Oats

scholarly journals Microbial induced acid corrosion from a field perspective - Advances in process understanding and construction material development

2018 ◽  
Vol 199 ◽  
pp. 02002
Author(s):  
Cyrill Grengg ◽  
Florian Mittermayr ◽  
Neven Ukrainczyk ◽  
Eddie Koenders ◽  
Günther Koraimann ◽  
...  
Keyword(s):  
Acid Corrosion ◽  
Construction Material ◽  
Environmental Parameters ◽  
Field Testing ◽  
Field Studies ◽  
Sustainable Building ◽  
Material Development ◽  
Process Understanding ◽  
Extensive Field ◽  
Corrosive Environments

Microbial induced acid corrosion is accounted for ~40 % of the degradation of subsurface wastewater infrastructure globally. While fundamental process understanding has increased significantly within the last decades, to date no sustainable building material exists, which meets the long-term requirements in such aggressive and corrosive environments. This work describes a novel model based on field studies, conducted in various Austrian sewer networks, intertwining biological, mineralogical and hydro-chemical factors. Additionally, an extensive field testing campaign over the duration of 18 months, conducted on different geopolymer concretes (GPC), particularly designed for the latter environments will be presented. Innovative GPCs were tested regarding their microstructural behavior, microbial accessibility and hydro-chemical alterations over time and compared to commercially produced cement based products, including OPC and CAC concretes. Additionally, the system specific environmental parameters, such as relevant gas concentrations (H2S, CO2, CH4), relative humidity and temperature were constantly monitored.

Effect of dietary level of naked oats (Avena nuda) on internal and sensory quality of eggs and on yolk lipid composition

1992 ◽  
Vol 72 (1) ◽  
pp. 147-153 ◽  
Author(s):  
N. A. Cave ◽  
E. E. Farnworth ◽  
L. M. Poste ◽  
G. Butler ◽  
V. D. Burrows
Keyword(s):  
Soybean Meal ◽  
Lipid Composition ◽  
Sensory Quality ◽  
Egg Quality ◽  
Control Diet ◽  
Internal Quality ◽  
Canola Meal ◽  
Yolk Lipid ◽  
Naked Oat ◽  
Naked Oats

The yolk lipid composition was determined and the sensory and internal quality evaluated for eggs obtained from hens at 8 and 15 m of age from two experiments. In exp. 1, in which naked oats replaced corn and soybean meal at levels of 0–800 g kg−1, there was a marked decrease in Roche yolk color at 8 mo, an increase in egg weight, and at 15 mo and a decrease in yolk flavor intensity with increasing level of oats. In exp. 2, there were four diets (0) a corn-soybean meal control, (876) a soybean-free naked oat alfalfa diet, (874) diet 876 supplemented with lysine and methionine and (691) diet 876 supplemented with canola meal. Haugh units were greater and yolk color less for supplemented naked oat diets versus the control diet. The yolk lipid content of sphingomyelin and sterols were higher than for the control diet. A yolk sulfury aroma was noted at 15 mo. At 8 mo, egg Haugh units were lower for the unsupplemented oat diet relative to the corn-soy diet. There were no other detrimental effects of oat diet on egg sensory quality. Other than a corrigible yolk color effect, egg quality traits do not limit the use of naked oats in poultry layer diets. Key words: Oats (naked), canola, egg internal quality, egg sensory quality, egg lipid composition, laying hen

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