scholarly journals Genetic divergence in grain amaranth (Amaranthus hypochondriacus L.)

Genetika ◽  
2011 ◽  
Vol 43 (1) ◽  
pp. 41-49 ◽  
Author(s):  
R.M. Pandey ◽  
Rekha Singh
Keyword(s):  
Genetic Divergence ◽  
Geographical Region ◽  
Diverse Group ◽  
Grain Amaranth ◽  
Amaranthus Hypochondriacus ◽  
Wide Range ◽  
Transgressive Segregants ◽  
Cluster Values ◽  
Clustering Pattern ◽  
Hybridization Programme

Extent and magnitude of genetic divergence for 14 characters among 98 genotypes of grain amaranth (Amaranthus hypochondriacus L.) were determined for the purpose of identifying more diverse parents which are expected to engender maximum variability. Based on genetic divergence D2 statistics, genotypes were grouped into 18 clusters in which cluster I contained maximum number of genotypes (42), Cluster II (11), Cluster III (7), Cluster IV and V (5 in each case) and Cluster VI has 4 genotypes. Cluster VII, VIII, IX, X have (3 in each), cluster XI, XII, XIII, XIV (2 in each) and clusters XV, XVI, XVII and XVIII (1in each case). The clustering pattern revealed that there was no relationship between genetic divergence and eco-geographical region. Intra cluster values ranged from 0.00 to 141.86 and cluster XI is most diverse group. The inter cluster values ranged from 133.08 to 1214.59. Maximum divergence was noticed between clusters VIII and XI (1214.59) followed by clusters XI and XV (982.16) and clusters II and XI (938.89). The diverse clusters derived could be used in hybridization programme to generate wide range of transgressive segregants in population to develop high yielding grain amaranth varieties.

scholarly journals Assessment of Genetic Diversity in Morphological Traits of Mango Genotypes Using D2 Statistics

2021 ◽  
pp. 31-42
Author(s):  
Swosti S. Das ◽  
K. Kishore ◽  
D. Lenka ◽  
D. K. Dash ◽  
K. C. Samal ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Genetic Divergence ◽  
Morphological Traits ◽  
Fruit Weight ◽  
Tropical Region ◽  
Wide Range ◽  
Cluster Distance ◽  
Breeding Programmes ◽  
Clustering Pattern ◽  
Hybridization Programme

An experiment was conducted during 2018-2020 to study the genetic diversity in 24 morphological traits using D2 statistics in mango genotypes of eastern tropical region of India. Present study reveals that the clustering pattern based on D2 statistics grouped 40 genotypes of mango into 7 clusters, out of which cluster VI (7397.45) shows the highest intracluster value followed by cluster III (5346.99) and cluster V (4130.4), indicating considerable genetic divergence among the accessions of this cluster. While maximum inter- cluster distance was observed between the cluster VI and VII (300180) followed by cluster II and VI (289267.7) and cluster I and VI (214380.5) indicated that the accessions belonging to these groups were genetically most diverse and can be used as a parent in hybridization programme. Wide range of genetic diversity observed among cluster VI and cluster VII, can either be utilized for breeding programmes for genetic improvement in mango or directly adopted as a variety. Fruit yield exhibited significant contribution towards the genetic divergence (60.77%) followed by fruit weight (26.79%), stone percentage (4.74%), peel percentage (2.31%) and pulp percentage (2.05%).

scholarly journals Genetic divergence studies in clusterbean [Cyamopsis Tetragoloba (L.) Taub.] genotypes for seed yield and gum content under rain-fed conditions

2017 ◽  
Vol 9 (1) ◽  
pp. 389-394
Author(s):  
Sukhdeep Singh ◽  
Baldeep Singh ◽  
Gajraj Singh
Keyword(s):  
Genetic Diversity ◽  
Genetic Material ◽  
Yield Potential ◽  
High Yield ◽  
Wide Range ◽  
Cluster Distance ◽  
Transgressive Segregants ◽  
Gum Content ◽  
Clustering Pattern ◽  
High Yield Potential

The genetic diversity among 33 cluster bean genotypes was evaluated under rain fed conditions during kharif 2012. The genetic material exhibited wide range of genetic diversity for all the twelve characters investigated. All the genotypes were grouped into seven different clusters. Cluster I was the largest comprising 11 genotypes followed by cluster II consisting of 8 genotypes, cluster V (5), cluster VI (4), cluster IV (2), cluster VII (2), cluster III (1). The clustering pattern indicated that there was lot of diversity among the genotypes and there was no relationship and independent. The intra cluster distance was highest at cluster VI followed by cluster I and II over others. The between the genetic and geographical diversity of the genotypes, but the distribution of the genotypes was random higher magnitude of inter-cluster distance were observed between cluster IV and VI (7.644) followed by cluster IV and cluster III and IV (5.861) and cluster II and V (5.834) indicating wider genetic diversity between the genotypes in V (7.582); cluster II and IV (6.802); cluster IV and VII (6.682); cluster I and IV (6.569); cluster II and VII (6.052); likely to produce more transgressive segregants. It is suggested that genotypes belonging to the clusters I, IV and VII these clusters. The uses of genotypes in hybridization from these clusters having most of the desirable characters are having diversified growth habit may be crossed with genotypes belonging to cluster II as they may be expected to produce good segregants with high yield potential.

GENETIC DIVERGENCE IN BABUL (ACACIA NILOTIKA)

2019 ◽  
Vol 25 (1) ◽  
Author(s):  
SUDHANSHU SHEKHAR ◽  
V.P. DWIVEDI ◽  
N.K. SRIVASTAVA
Keyword(s):  
Genetic Distance ◽  
Genetic Divergence ◽  
Acacia Nilotica ◽  
Hybridization Programme

Genetic divergence of Babul (Acacia nilotica) was assessed using Mahalanobis 0 statistics. They were grouped into eight clusters. Maximum genetic distance was recorded between III & VIII ciusters indicating greater distance between two clusters that showed maximum diversity amount the genotype and helps in hybridization programme.

scholarly journals Genetic Divergence in Indigenous Wild and Cultivated Rice Species of Manipur Valley

ISRN Genetics ◽  
2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
K. Medhabati ◽  
K. Rajiv Das ◽  
M. Rohinikumar ◽  
H. Sunitibala ◽  
Th. Dikash Singh
Keyword(s):  
Genetic Divergence ◽  
Wild Rice ◽  
Flag Leaf ◽  
Cluster Formation ◽  
Leaf Length ◽  
Cultivated Rice ◽  
And Performance ◽  
Flag Leaf Length ◽  
The Individual ◽  
Hybridization Programme

Genetic divergence of 32 indigenous rice germplasms and five wild rice of which three from Manipur and two wild rice procured from IRRI, Philippines was investigated using Mahalanobis, D2 statistic. Based on twelve agromorphological characters, the thirty-seven germplasms both wild and cultivated were grouped into five clusters based on the relative magnitudes of D2 values following Tocher's method of cluster formation. Based on the rank totals, the characters which contributed maximum towards genetic divergence in the present studies were grain yield/plant, spikelet/panicle, 100 grain weight, grain length, days to 50% flowering, ear bearing tillers/plant, and flag leaf length. In the present study, maximum intercluster distance was estimated between cluster III and (D2=14.09) which was closed followed by clusters II and V (D2=12.50). On the basis of their greater intercluster distance, high value of cluster mean according to the character to be improved and performance of the individual germplasms for the character, the germplasms could be used in hybridization programme for improvement of different plant characters in the rice germplasms of Manipur.

Who Was “Hitler” Before Hitler? Historical Analogies and the Struggle to Understand Nazism, 1930–1945

2018 ◽  
Vol 51 (2) ◽  
pp. 249-281
Author(s):  
Gavriel D. Rosenfeld
Keyword(s):  
World War Ii ◽  
Postwar Period ◽  
Diverse Group ◽  
Turn Of The Millennium ◽  
World War ◽  
Ongoing Debate ◽  
Wide Range ◽  
The World ◽  
Historical Analogy ◽  
Nazi Era

AbstractSince the turn of the millennium, major political figures around the world have been routinely compared to Adolf Hitler. These comparisons have increasingly been investigated by scholars, who have sought to explain their origins and assess their legitimacy. This article sheds light on this ongoing debate by examining an earlier, but strikingly similar, discussion that transpired during the Nazi era itself. Whereas commentators today argue about whether Hitler should be used as a historical analogy, observers in the 1930s and 1940s debated which historical analogies should be used to explain Hitler. During this period, Anglophone and German writers identified a diverse group of historical villains who, they believed, explained the Nazi threat. The figures spanned a wide range of tyrants, revolutionaries, and conquerors. But, by the end of World War II, the revelation of the Nazis' unprecedented crimes exposed these analogies as insufficient and led many commentators to flee from secular history to religious mythology. In the process, they identified Hitler as Western civilization's new archetype of evil and turned him into a hegemonic analogy for the postwar period. By explaining how earlier analogies struggled to make sense of Hitler, we can better understand whether Hitler analogies today are helping or hindering our effort to understand contemporary political challenges.

Health, sustainability, and climate change

2020 ◽  
pp. 382-392
Author(s):  
David Pencheon ◽  
Sonia Roschnik ◽  
Paul Cosford
Keyword(s):  
Climate Change ◽  
Sustainable Development ◽  
Diverse Group ◽  
Policy And Practice ◽  
System P ◽  
Wide Range ◽  
Care Systems ◽  
Barriers To Implementation ◽  
People Skills ◽  
Cross System

This chapter will help you understand the importance of, and the relationships between, health, health and care systems, sustainable development, and climate change, and to do so locally and globally. The specific objectives of the chapter are to help you: make the case for action by understanding how science, law, policies, and values can be framed and translated into specific and system wide actions; translate what is known and what protects and creates health into policy and practice, and help address barriers to implementation and quality improvement in health and care systems; engage a wide range of stakeholders to ensure appropriate cross-system action involving a diverse group of people, skills, and influences across the health and care system.

Health, sustainability, and climate change

2013 ◽  
pp. 548-555
Author(s):  
David Pencheon ◽  
Sonia Roschnik ◽  
Paul Cosford
Keyword(s):  
Public Health ◽  
Climate Change ◽  
Health Care ◽  
Public Health Practice ◽  
Climate Science ◽  
Diverse Group ◽  
Policy And Practice ◽  
Carbon Reduction ◽  
Wide Range ◽  
Good For

This chapter will help you understand the relationships between health, health care, sustainability, climate change, and carbon reduction, locally and globally. The specific objectives of the chapter are to help you make the case for action by showing how health, health care, sustainable development, and climate change are linked positively such that what is good for mitigating climate change is also good for health and health care today, translate science into policy and practice and help move research and action about climate science into policy and practice, and engage a wide range of stakeholders and appreciate that, as in much public health practice, appropriate action comes from involving a diverse group of people through genuine engagement.

Isidore of Seville's Taxonomy of Magicians and Diviners

Traditio ◽  
2003 ◽  
Vol 58 ◽  
pp. 59-90 ◽  
Author(s):  
William E. Klingshirn
Keyword(s):  
Diverse Group ◽  
Detailed Classification ◽  
Wide Range

In Etymologies 8.9, Isidore presents a detailed classification of the diverse group of ritual experts he calls magi. Well organized, erudite, flexible enough to include a wide range of specialists, and, as its record of influence demonstrates, enormously useful as a template for later medieval classifications, the “De Magis” offers what can rightly be called the first definitive western Christian taxonomy of unauthorized practitioners. Although Isidore relied heavily on a wide range of pagan and Christian sources for the contents of the chapter, their selection, revision, and arrangement—the elements of his taxonomy—were all his own.

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