scholarly journals Unraveling the complex story of intergenomic recombination in ABB allotriploid bananas

2019 ◽  
Author(s):  
Cenci Alberto ◽  
Sardos Julie ◽  
Hueber Yann ◽  
Martin Guillaume ◽  
Breton Catherine ◽  
...  
Keyword(s):  
Developing Countries ◽  
Chromosome Structure ◽  
Snp Markers ◽  
Staple Food ◽  
Good Source ◽  
Ancestral Origin ◽  
Drought Tolerant ◽  
The Right ◽  
New Cultivars

AbstractBackground and AimsBananas (Musa spp.) are a major staple food for hundreds of millions of people in developing countries. The cultivated varieties are seedless and parthenocarpic clones of which the ancestral origin remains to be clarified. The most important cultivars are triploids with an AAA, AAB, or ABB genome constitution, with A and B genomes provided by M. acuminata and M. balbisiana, respectively. Previous studies suggested that inter-genome recombinations were relatively common in banana cultivars and that triploids were more likely to have passed through an intermediate hybrid. In this study, we investigated the chromosome structure within the ABB group, composed of starchy cooking bananas that play an important role in food security.MethodsUsing SNP markers called from RAD-Seq data, we studied the chromosome structure of 36 ABB genotypes spanning defined taxonomic subgroups. To complement our understanding, we search for similar events within nine AB hybrid genotypes.Key ResultsRecurrent Homoeologous Exchanges (HEs), i.e. chromatin exchanges between A and B subgenomes were unraveled with at least 9 founding events at the origin of the ABB bananas prior to the clonal diversification. The discovery of this nine founding events allows discussing the possible routes that led to the creation of the different subgroups and formulate new hypotheses. Based on our observations, we suggest different routes that gave rise to the current diversity in the ABB cultivars. Routes involving primary AB hybrids, routes leading to shared HEs and routes leading to a B excess ratio. Genetic fluxes took place between M. acuminata and M. balbisiana, particularly in India, where these unbalanced AB hybrids and ABB allotriploid originated and where cultivated M. balbisiana are abundant.ConclusionsThe result of this study clarifies the classification of ABB cultivars and leading possibly to the revision of the classification of this subgroup. This is an important step to unravel the origin of polyploid bananas, and contributes to possible scenarios on the origin. ABB bananas are hypothesized to be more drought tolerant. Knowing the origin of our current cultivars and so their potential parents will help breeders to make the right choices for future crosses. The M. balbisiana genome is a good source to create new cultivars able to answer the numerous challenges of banana breeding.

scholarly journals Unravelling the complex story of intergenomic recombination in ABB allotriploid bananas

2020 ◽  
Vol 127 (1) ◽  
pp. 7-20 ◽  
Author(s):  
Alberto Cenci ◽  
Julie Sardos ◽  
Yann Hueber ◽  
Guillaume Martin ◽  
Catherine Breton ◽  
...  
Keyword(s):  
Developing Countries ◽  
Food Security ◽  
Chromosome Structure ◽  
Snp Markers ◽  
Staple Food ◽  
Musa Spp ◽  
Ancestral Origin ◽  
Intergenomic Recombination ◽  
B Genome

Abstract Background and Aims Bananas (Musa spp.) are a major staple food for hundreds of millions of people in developing countries. The cultivated varieties are seedless and parthenocarpic clones of which the ancestral origin remains to be clarified. The most important cultivars are triploids with an AAA, AAB or ABB genome constitution, with A and B genomes provided by M. acuminata and M. balbisiana, respectively. Previous studies suggested that inter-genome recombinations were relatively common in banana cultivars and that triploids were more likely to have passed through an intermediate hybrid. In this study, we investigated the chromosome structure within the ABB group, composed of starchy cooking bananas that play an important role in food security. Methods Using SNP markers called from RADSeq data, we studied the chromosome structure of 36 ABB genotypes spanning defined taxonomic subgroups. To complement our understanding, we searched for similar events within nine AB hybrid genotypes. Key Results Recurrent homologous exchanges (HEs), i.e. chromatin exchanges between A and B subgenomes, were unravelled with at least nine founding events (HE patterns) at the origin of ABB bananas prior to clonal diversification. Two independent founding events were found for Pisang Awak genotypes. Two HE patterns, corresponding to genotypes Pelipita and Klue Teparod, show an over-representation of B genome contribution. Three HE patterns mainly found in Indian accessions shared some recombined regions and two additional patterns did not correspond to any known subgroups. Conclusions The discovery of the nine founding events allowed an investigation of the possible routes that led to the creation of the different subgroups, which resulted in new hypotheses. Based on our observations, we suggest different routes that gave rise to the current diversity in the ABB cultivars, routes involving primary AB hybrids, routes leading to shared HEs and routes leading to a B excess ratio. Genetic fluxes took place between M. acuminata and M. balbisiana, particularly in India, where these unbalanced AB hybrids and ABB allotriploids originated, and where cultivated M. balbisiana are abundant. The result of this study clarifies the classification of ABB cultivars, possibly leading to the revision of the classification of this subgroup.

Awareness and Decision Making in Professional Ethics

2000 ◽  
Vol 5 (1) ◽  
pp. 19-27 ◽  
Author(s):  
Ronny Swain
Keyword(s):  
Decision Making ◽  
Professional Ethics ◽  
Ethical Decision Making ◽  
Code Of Ethics ◽  
Professional Autonomy ◽  
Ethical Awareness ◽  
Ethical Decisions ◽  
The Right ◽  
Aid Decision

The paper describes the development of the 1998 revision of the Psychological Society of Ireland's Code of Professional Ethics. The Code incorporates the European Meta-Code of Ethics and an ethical decision-making procedure borrowed from the Canadian Psychological Association. An example using the procedure is presented. To aid decision making, a classification of different kinds of stakeholder (i.e., interested party) affected by ethical decisions is offered. The author contends (1) that psychologists should assert the right, which is an important aspect of professional autonomy, to make discretionary judgments, (2) that to be justified in doing so they need to educate themselves in sound and deliberative judgment, and (3) that the process is facilitated by a code such as the Irish one, which emphasizes ethical awareness and decision making. The need for awareness and judgment is underlined by the variability in the ethical codes of different organizations and different European states: in such a context, codes should be used as broad yardsticks, rather than precise templates.

Wadhwa, Charan D. and MukulG. Asher (eds.). ASEAN-SOUTH ASIA Economic Relations. Singapore: Institute of Southeast Asian Studies. 1985. ix+384pp.

1988 ◽  
Vol 27 (3) ◽  
pp. 336-338
Author(s):  
Muhammad Hussain Malik
Keyword(s):  
Developing Countries ◽  
South Asian ◽  
Southeast Asian ◽  
Asian Countries ◽  
Asian Studies ◽  
Economic Relations ◽  
Rigorous Research ◽  
Southeast Asian Studies ◽  
The Right ◽  
Policy Proposals

The need to enhance their economic relations with each other has long been felt by developing countries. However, their efforts in this regard have met with limited success. One of the reasons for this could be that not much serious work has been done to understand the complexities and possibilities of economic relations of developing countries. The complementarities which exist among the economies of these countries remain relatively unexplored. There is a lack of concrete policy proposals which developing countries may follow to achieve their often proclaimed objective of collective self-reliance. All this needs serious and rigorous research efforts. In this perspective, the present study can be considered as a step in the right direction. It examines trade and other economic relations of developing countries of two regions of Asia-South Asian countries and member countries of the Association of Southeast Asian Nations (ASEAN). The study also explores ways and means to improve economic relations among these countries

Role of laparoscopic in diagnosis and treatment of undescended testis in children at Viet Duc Hospital

2018 ◽  
Vol 8 (4) ◽  
Author(s):  
Viet Hoa Nguyen
Keyword(s):  
Laparoscopic Surgery ◽  
Undescended Testis ◽  
Correct Diagnosis ◽  
Diagnosis And Treatment ◽  
Highly Sensitive ◽  
The Mean ◽  
The Right ◽  
Time Of Operation

Abstract Introduction: Evaluating the role of laparoscopic for diagnosis and treatment of undescended testis in children. Material and Methods: Restrospective study, between 6/ 2014 and 6/2017. All the patients are aged from 1 to 16 years with undescended testis underwent laparoscopic surgery for diagnosis and treatment in Deparment of pediatric surgery – Viet Duc hospital enrolled. Results: Of 95 patiens in total had 106 undescended testis diagnosed and treated by laparoscopy. The mean age of patients was 7,5 ± 3,8 years. 44,2% undescended were on the left side, 44,2% were on the right and 11,6% were undescended bilateral. The correct diagnosis by ultrasound accounted in 79,4%. The locations of testis diagnosed by laparoscopic are : intra abdomen in 45,3%, deep inguinal orifice in 16,9%, extra inguinal orifice in 26,4%, no testicle found in 11,4%. The mean time of operation were 67,33± 28,01 pht. Scrotal positions were achieved 74,5%, remove atrophic testis accounted in 7,6%. Stephen- Flowler technique including step I were in 4,7%, step II in 1,9%. The outcome evaluated by testicular positions following 3 months after operation are : good in 79,2%, moderate 13,2%, poor in 7,6%; By classification of Aubert are : good in 81,1%, moderate in 11,3% and poor in 7,6 %. Conclusion: Laparoscopic surgery is not only a highly sensitive diagnostic method to find accurately the location and size of the testes, but also the most effective method to treat impalpable undescended testes.

Turkey in Crisis: Some Contradictions in the Kemalist Development Strategy

1983 ◽  
Vol 15 (1) ◽  
pp. 47-66 ◽  
Author(s):  
Özay Mehmet
Keyword(s):  
Economic Growth ◽  
Developing Countries ◽  
Economic System ◽  
Development Strategy ◽  
Growth Rates ◽  
Political System ◽  
Political Crisis ◽  
Half Century ◽  
The Right

The recent crisis in Turkey has been described primarily as a political crisis caused by an unworkable political system under attack from organized terrorism from both the right and the left. While this may be valid as an immediate cause, there are some structural and ideological contradictions in the Turkish economic system which must also be highlighted. These contradictions have evolved gradually over the last half century in the course of Turkey's efforts to achieve industrial and economic growth. They have been exacerbated in particular by a process of lopsided industrialization after 1960 which, as in most other developing countries, has resulted in increased poverty and unemployment while achieving overall growth rates of 6 percent or better.

scholarly journals DECISION TREE C4.5 ALGORITHM FOR TUITION AID GRANT PROGRAM CLASSIFICATION (CASE STUDY: DEPARTMENT OF INFORMATION SYSTEM, UNIVERSITAS TEKNOKRAT INDONESIA)

2020 ◽  
Vol 7 (1) ◽  
Author(s):  
Heni Sulistiani ◽  
Ahmad Ari Aldino
Keyword(s):  
Decision Tree ◽  
Classification Model ◽  
Grant Program ◽  
C4.5 Algorithm ◽  
Long Time ◽  
The Right ◽  
Short Time ◽  
Tuition Fee

In pandemic era, almost everyone struggles for their life. College students are such example. They have difficulty in paying tuition fee to continue their study. Based on this problematic situation, Universitas Teknokrat Indonesia grants the students who have good academic performance with tuition fee aid program. Many variables used for determining the grant made it hard to make a decision in a short time or even takes very long time. To make it easier for management to decide who is the right student to get grant, it needs classification model. The purpose of this study is the classification of grant recipients by using decision tree C4.5 algorithm. That can determine whether a potential student can be accepted as an awardee or not. Then, the results of the classification are validated with ten-fold cross validation with an accuracy, precision and recall with the score of 87 % for all part. It means the model perform quite well to be implemented into system.

scholarly journals A Review on Epilepsy and its Management

2020 ◽  
Vol 10 (3) ◽  
pp. 273-279
Author(s):  
V.V. Potnis ◽  
Ketan G. Albhar ◽  
Pritamsinh Arjun Nanaware ◽  
Vishal S. Pote
Keyword(s):  
Developing Countries ◽  
Neurological Disorders ◽  
Genetic Factors ◽  
Future Trends ◽  
Brain Infection ◽  
The World ◽  
Different Types ◽  
Patients With Epilepsy ◽  
The Brain

Today, people face various types of stress in everyday fast life and most people in the world suffer from various neurological disorder. Epilepsy is one of the most common neurological disorders of the brain, affecting about 50 million people around the world, and 90% of them are coming from developing countries. Genetic factors and brain infection, stroke, tumors and epilepsy cause high fever. It imposes a great economic burden on the health systems of countries associated with stigma and discrimination against the patient and also his family in the community, in the workplace, school and home. Many patients with epilepsy suffer from severe emotional stress, behavioral disorders and extreme social isolation. There are many different types of seizure and mechanisms by which the brain generates seizures. The two features of generating seizures are hyperexcitability of neurons and a hyper synchronousneural circuits. A variety of mechanisms alters the balance between excitation and inhibition in predisposing brain local or generalized hyperexcitability region and a hypersynchronia. Purpose of the review is to discuss the history, epidemiology, etiology, pathophysiology, classification of epilepsy, symtomps, diagnosis, management of epilepsy and future trends. Keywords: Anti-epileptic drugs, pathophysiology, seizures, epidemiology, hypersynchrony

scholarly journals MAIN ASPECTS OF THE ORGANIZATION OF ACCOUNTING AND ANALYTICAL SUPPORT AND COST MANAGEMENT OF THE ENTERPRISE

2021 ◽  
Author(s):  
Antonina Kosiak ◽  
Olena Lytovchenko
Keyword(s):  
Financial Reporting ◽  
Cost Management ◽  
International Standards ◽  
Production Costs ◽  
International Financial Reporting Standards ◽  
Reporting Standards ◽  
Financial Reporting Standards ◽  
Support Organization ◽  
The Right

One of the most important indicators of production and economic activity of enterprises, which has a direct impact on financial performance is costs. The article defines the economic meaning of the concept of "costs", "production costs". Features of accounting and analytical support, organization of accounting and cost management, cost classification are considered. Classification is one of the methods of cognition and study of phenomena, processes, objects, which consists in their division into classes on the basis of certain features, properties and patterns of relations between them. The classification of costs helps to assess the costs incurred, to find possible features to increase cost efficiency and make the right decisions about their management. Classification of costs is the basis of their accounting, analysis and planning in the enterprise. Cost management takes into account such components as rationing, planning, cost accounting, deviation control and cost analysis, cost management and decision making. The problem of cost management is quite relevant for Ukrainian enterprises. Today, all businesses face the problem of applying International Financial Reporting Standards. The peculiarities of cost reflection according to International Financial Reporting Standards and National Accounting Standards (standards) are studied and analyzed. Achieving a high or sufficient level of each of the production or management processes of financial activities of economic entities must be accompanied by certain costs, the economic content of which will vary depending on the object. However, the owners (managers) of the enterprise or its individual structural unit must be clearly aware of what exactly the costs contribute to the creation and maintenance of the organization and their timely optimization. The Conceptual Basis of Preparation and Submission of Financial Statements means true presentation, prevalence of substance over form, prudence, completeness. These requirements formed the basis for the formation of accounting principles in International Standards and, accordingly, in Ukraine.

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