RELATIONSHIP BETWEEN COLEOPTILE LENGTH AND CULM LENGTH IN BARLEY

1980 ◽  
Vol 60 (2) ◽  
pp. 687-693 ◽  
Author(s):  
S. CECCARELLI ◽  
M. T. PEGIATI ◽  
F. SIMEONI
Keyword(s):  
Major Gene ◽  
Genetic System ◽  
Pleiotropic Effect ◽  
Selection Experiment ◽  
New Combinations ◽  
Coleoptile Length ◽  
Culm Length ◽  
Degree Of Association ◽  
The Relationship

Coleoptile length and culm length in barley (Hordeum sativum Jess.) appeared to be strictly associated in a number of F6 lines derived from a two-way selection experiment for culm length. When the relationship between the two characters was studied in six cultivars and six F2 populations, the degree of association was variable depending upon the parental cultivars. In one F2 population, the two traits were largely independent while in the two F2 populations used in the selection experiment, coleoptile length and culm length were associated, though a small number of plants with new combinations of the two traits were recovered. The presence of a major gene with pleiotropic effect on culm and coleoptile length and closely associated to the genetic system for culm length is suggested to explain the observed results.

Inheritance of Coleoptile Length and Culm Length in Crosses Involving Olesen's Dwarf Spring Wheat 1

Crop Science ◽  
1973 ◽  
Vol 13 (2) ◽  
pp. 181-184 ◽  
Author(s):  
J. C. Hoff ◽  
B. J. Kolp ◽  
K. E. Bohnenblust
Keyword(s):  
Spring Wheat ◽  
Coleoptile Length ◽  
Culm Length

High Frequency Recombination During the Sexual Cycle of Dictyostelium discoideum

Genetics ◽  
1998 ◽  
Vol 148 (4) ◽  
pp. 1829-1832 ◽  
Author(s):  
David Francis
Keyword(s):  
Dictyostelium Discoideum ◽  
Genetic Map ◽  
High Frequency ◽  
Cell Biology ◽  
Physical Map ◽  
Genetic System ◽  
Sexual Cycle ◽  
Chromosome 2 ◽  
New Combinations ◽  
Restriction Sites

Abstract Analysis of Dictyostelium development and cell biology has suffered from the lack of an ordinary genetic system whereby genes can be arranged in new combinations. Genetic exchange between two long ignored strains, A2Cycr and WS205 is here reexamined. Alleles which differ in size or restriction sites between these two strains were found for seven genes. Six of these are in two clusters on chromosome 2. Frequencies of recombinant progeny indicate that the genetic map of the two mating strains is colinear with the physical map recently worked out for the standard nonsexual strain, NC4. The rate of recombination is high, about 0.1% per kilobase in three different regions of chromosome 2. This value is comparable to rates found in yeast, and will permit fine dissection of the genome.

scholarly journals The identity of the oriental leafhopper genera Cyrta Melichar and Placidus Distant (Hemiptera: Cicadellidae: Stegelytrinae), with description of a new genus

Zootaxa ◽  
2008 ◽  
Vol 1793 (1) ◽  
pp. 1 ◽  
Author(s):  
CONG WEI ◽  
M. D. WEBB ◽  
YALIN ZHANG
Keyword(s):  
New Species ◽  
Host Plants ◽  
New Genus ◽  
New Combinations ◽  
Senior Synonym ◽  
The Relationship

The identities of the Oriental leafhopper genera Cyrta Melichar and Placidus Distant are reviewed, and Cyrta is placed as a senior synonym of Placidus. The following new combinations and new species are proposed for Cyrta: C. brunnea (Kuoh) comb. n.; C. dentata (Zhang & Wei) comb. n.; C. flosifronta (Zhang & Wei) comb. n.; C. furcata (Li & Zhang) comb. n.; Cyrta hornei (Distant) comb. n.; C. incurvata (Wei & Zhang) comb. n.; C. longwanshensis (Li & Zhang) comb. n.; C. nigrocupulifera (Zhang & Wei) comb. n.; C. orientalis (Schumacher) comb. n.; C. striolata (Zhang & Wei) comb. n.; C. testacea (Kuoh) comb. n.; C. vicina (Dlabola) comb. n.; C. tiantaishanensis sp. n.; C. spinosa sp. n.; C. conduplicata sp. n.; C. coalita sp. n. and C. fujianensis sp. n. A new genus, Paracyrta gen. n., is erected to accommodate the following species previously included in Cyrta: P. blattina (Jacobi) comb. n.; P. recusetosa (Zhang & Wei) comb. n.; P. setosa (Zhang & Sun) comb. n.; P. banna (Zhang & Wei) comb. n.; P. bicolor (Zhang & Wei) comb. n.; P. longiloba (Zhang & Wei) comb. n.; P. dentata (Zhang & Wei) comb. n.; P. bimaculata (Zhang & Sun) comb. n.; P. parafrons (Zhang & Wei) comb. n. A key is provided for the above species of Cyrta and the relationship between Cyrta and Paracyrta and other Oriental stegelytrine genera is given. The host plants and mud-puddling behaviour of the representatives of this subfamily are discussed.

The Gray Correlation Research on the Sustainable Development of Beijing and Industrial Structure Based on 3EDSS

2011 ◽  
Vol 361-363 ◽  
pp. 1153-1156 ◽  
Author(s):  
Li Luan You ◽  
Mo Yu Wang ◽  
Wen Yan Guo ◽  
Xiao Liu Shen
Keyword(s):  
Sustainable Development ◽  
Industrial Structure ◽  
The Sustainable Development ◽  
Sulfur Dioxide Emissions ◽  
Analysis Theory ◽  
Gray Correlation ◽  
Grey Correlation Analysis ◽  
Data Inquiry ◽  
Degree Of Association ◽  
The Relationship

This paper will research the relationship between the Beijing industrial structure and the sustainable development through the 3EDSS which provides an all-round, multi-level international index data inquiry, statistics, analysis and computation function and grey correlation analysis theory, analysis the degree of association between each industry and GDP, energy consumption elasticity coefficient, sulfur dioxide emissions of Beijing, thus putting forward some suggestions for Beijing to the sustainable development and industrial structure optimization.

scholarly journals The Relationship between Training and Employee Performance: The Case of Mutare City Council, Zimbabwe

2014 ◽  
Vol 4 (4) ◽  
pp. 61 ◽  
Author(s):  
Wehnam Peter Dabale ◽  
Nelson Jagero ◽  
Mentline Nyauchi
Keyword(s):  
Human Resources ◽  
Business Strategy ◽  
Employee Performance ◽  
Human Resources Management ◽  
Sampling Technique ◽  
City Council ◽  
And Performance ◽  
Degree Of Association ◽  
The Relationship ◽  
And Training

The Success of failure of an organization depends on the quality of its human resources and training being an integral part of the strategy to integrate human resources management with an organizations business strategy, coming at the age where employees are beginning to realize that employers have the potential to be much more dynamic and beneficial to the organization. Hence, this study was aimed to determine the relationship between training and employee performance in Mutare City Council, Zimbabwe. Correlational research design was used in this study, with an attempt describe and measure the degree of association between performance and training. A total of one hundred and thirty two (132) respondents (91 males and 41 females) were selected from the employees (population), purposive sampling technique and structured questionnaire were used in data collection. Data was analyzed using quantitative techniques, including inferential statistics. It was established that there was strong positive relationship between training and performance of employees.  It was recommended that all stakeholders, be involved in one way or the other in training to enhance employee knowledge, skills, ability, competencies and behaviour. 

The Relationship between Expressed and Experienced Emotion in Depression

1983 ◽  
Vol 12 (1) ◽  
pp. 29-41 ◽  
Author(s):  
Serena-Lynn Brown
Keyword(s):  
Expressed Emotion ◽  
Depression Scale ◽  
Self Report ◽  
Facial Electromyography ◽  
Self Rating ◽  
Degree Of Association ◽  
The Relationship ◽  
Experienced Emotion

Sixty right-handed adult subjects, divided equally into three groups (mildly depressed, normal, and “low normal”) on the basis of the Zung Self-Rating Depression Scale, were exposed for forty seconds each to forty-eight imagery items designed to reflect happy, sad, angry, and fearful situations. Expressed emotion (facial electromyography) and experienced emotion (self-report) were measured. Results replicated and extended previous findings, suggesting both a “dissociation” between expressed and experienced happiness and an abnormal degree of “association” between expressed and experienced sadness for depressives and possibly “low normals.”

scholarly journals Variation in Plasma Concentration of Insulin-like Growth Factor-l and its Covariation with Liveweight in Mice

1987 ◽  
Vol 40 (3) ◽  
pp. 287 ◽  
Author(s):  
H T Blair ◽  
SN McCutcheon ◽  
DDS Mackenzie ◽  
PD Gluckman ◽  
JE Ormsby
Keyword(s):  
Genetic Variation ◽  
Plasma Concentration ◽  
Growth Factor ◽  
Litter Size ◽  
Genetic Factors ◽  
Plasma Concentrations ◽  
Early Age ◽  
Selection Experiment ◽  
Insulin Like Growth Factor ◽  
The Relationship

Three experiments were undertaken to examine the degree and causes of variation in plasma concentrations of insulin-like growth factor-l (IOF-I) in mice. The relationship between IOF-l concentrations and liveweight was also examined. In all three experiments, a number of non-genetic factors were found to contribute significantly to the variation in IOF-l concentrations, the most important of these being sex and litter size. In one experiment, where pups from 16 litters were cross-fostered to avoid the confounding of maternal and direct genetic effects, a heritability of 0'40 � 0�27 was estimated for plasma IOF-l concentration at 35 days of age. To examine further the existence of genetic variation in plasma concentrations of IOF-l and the genetic covariation between plasma IOF-l levels and other body traits, a selection experiment with mice has been initiated. Moderate to strong phenotypic correlations between IOF-l concentrations and weight at an early age have been found in all three experiments.

scholarly journals Phenotypic relationships between gestation length and preweaning litter traits in rabbits.

2021 ◽  
Vol 31 (2) ◽  
pp. 154-160
Author(s):  
O. N. Durunna ◽  
U. E. Ogundu
Keyword(s):  
Litter Size ◽  
Average Daily Gain ◽  
Gestation Length ◽  
Litter Weight ◽  
Litter Traits ◽  
Degree Of Association ◽  
High Degree ◽  
The Relationship ◽  
Daily Gain ◽  
Size At Birth

A total of 135 kittens from 22 kindlings were used to determine the relationship between gestation length (GL) and some preweaning litter traits alongside the weight of their 12 dams. Average daily gain at 21 days (ADG21), average litter weight at birth (ALWB), kindling to weaning viability (KWV), litter size at birth{L.SB), litter size at 21 days (LS21), litter weight at 21 days(LW21), litter weight at birth (LWAB), and still birth number (SBN) when subjected to multiple regression analysis revealed non-significant t-test value with GL. However, Average litter weight at 21 days (ALW21) was highly significant (P<0.01) suggesting that such can be used to predict GL. Weight of doe (WOD) was highly significant (P<0.01) showing that such parameter is important for predicting GL. A high R2 value was obtained indicating that the variability in GL is explained by the linearity of the preweaning litter traits and WOD. However the correlation coefficient R, (0.89) revealed a high degree of association between the preweaning litter traits in the rabbits and the weight of doe in a linear form. The F-value was significant at P<0.05 indicating that WOD and the preweaning litter traits in rabbits have significant contribution to the variation in GL. The correlations among traits were positive and significant for majority of the traits, which include live birth number (LBN), ADG21, ALW21, KWV, LS21, and LW21. However SBN had negative correlation with other traits.

scholarly journals Author Cooperation Network in Biology and Chemistry Literature during 2014-2018: Construction and Structural Characteristics

Information ◽  
2019 ◽  
Vol 10 (7) ◽  
pp. 236
Author(s):  
Zhang ◽  
Yang ◽  
Hu ◽  
Li
Keyword(s):  
Structural Characteristics ◽  
Analytical Data ◽  
Complex Network Theory ◽  
Cooperative Relationships ◽  
System A ◽  
Specific Analysis ◽  
Cooperation Network ◽  
Cooperative Relationship ◽  
Degree Of Association ◽  
The Relationship

How to explore the interaction between an individual researcher and others in scientific research, find out the degree of association among individual researchers, and evaluate the contribution of researchers to the whole according to the mechanism and law of interaction, is of great significance to grasp the overall trend of the field. Scholars mostly use bibliometrics to solve these problems and analyze the citation and cooperation among academic achievements from the dimension of "quantity". However, there is still no mature method for scholars to explore the evolution of knowledge and the relationship between authors; this paper tries to fill this gap. We narrow down the scope of research and focus the research content on the literature in biology and chemistry, collect all the papers from PubMed system (a very comprehensive authoritative database of biomedical papers) during 2014–2018, and take year as a specific analysis unit so as to improve the accuracy of the analysis. Then, we construct the author cooperation networks. Finally, through the above methods and steps, we identify the core authors of each year, analyze the recent cooperative relationships among authors, and predict some changes in the cooperative relationship among the authors based on the networks’ analytical data, evaluating and estimating the role that authors play in the overall field. Therefore, we expect that the cooperative authorship networks supported by the complex network theory can better explain the author's cooperative relationship.

A review of the Aphodiinae (Coleoptera: Scarabaeidae) of southern South America

Zootaxa ◽  
2007 ◽  
Vol 1458 (1) ◽  
pp. 1-80 ◽  
Author(s):  
ANDREW B.T. SMITH ◽  
PAUL E. SKELLEY
Keyword(s):  
South America ◽  
Endemic Species ◽  
Native Species ◽  
Valid Species ◽  
New Combinations ◽  
Study Region ◽  
Southern South America ◽  
Study Material ◽  
The Status ◽  
The Relationship

The 27 Aphodiinae (Coleoptera: Scarabaeidae) species that occur in southern South America are reviewed. This study region consists of the southern parts of Argentina and Chile including the Central Chilean, Patagonian, and Subantarctic biogeographical provinces. Keys, illustrations, and distributional records with maps for all species are presented. Seventeen species are native to southern South America, nine species are introduced, and the status of one species could not be determined due to a lack of study material. Nine of the 17 native species are endemic to southern South America, and the relationship between these endemic species and similar Australian groups is discussed. A number of classification and nomenclatural changes are made. Paranimbus Schmidt and Pseudopodotenus Dellacasa are considered to subgenera of Podotenus Schmidt. As a result, the following new combinations are created: Podotenus (Paranimbus) longitarsis (Harold), Podotenus (Paranimbus) penai (Petrovitz), Podotenus (Paranimbus) peruanus (Erichson), Podotenus (Paran- imbus) zoiai (Dellacasa), and Podotenus (Pseudopodotenus) fulviventris (Fairmaire and Germain). Ataenius chilensis (Solier) is removed from synonymy with Ataenius gracilis (Melsheimer) and is considered a valid species. Ataenius modestus Schmidt is synonymized under Ataenius chilensis (Solier). Psammobius indefensus Schmidt is transferred to the genus Leiopsammodius and Leiopsammodius chilensis Rakovic is placed in synonymy with this name. Lectotypes are designated for the following names: Aphodius chilensis Solier (now Ataenius chilensis), Aphodius reflexus Schmidt (now Orodaliscoides reflexus), Ataenius modestus (now a synonym of Ataenius chilensis), and Psammobius indefensus Schmidt (now Leiopsammodius indefensus). A neotype is designated for Aphodius angustus Philippi and Philippi, a synonym of Pleurophorus caesus (Panzer). Records considered to be erroneous for several Aphodiinae species in southern South America are also discussed.

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