Results 111 to 120 of about 73,694 (231)

RAPD PCR Confirms Absence of Genetic Variation Between Insecticide Resistant Variants of the Green Peach Aphid, \u3ci\u3eMyzus Persicae\u3c/i\u3e (Homoptera: Aphididae) [PDF]

open access: yes, 2017
Previous allozyme analysis has revealed an apparent absence of enzyme variability in the green peach aphid, Myzus persicae (Sulzer). We are interested in determining the genetic relatedness of individual M persicae clones carrying different numbers of ...
Al-Aboodi, A., Ffrench-Constant, R. H
core   +2 more sources

Increase of blaOXA-23-like in Acinetobacter baumannii at a tertiary care center in Lebanon between 2007 and 2013

open access: yesJournal of Infection in Developing Countries, 2018
Introduction: The multi-drug resistant nature of Acinetobacter baumannii isolates have rendered many broad-spectrum antimicrobial agents ineffective against them.
Souha S Kanj   +11 more
doaj   +1 more source

Development of microsatellite markers for identifying Brazilian coffee arabica varieties [PDF]

open access: yes, 2010
Microsatellite markers, also known as SSRs (Simple Sequence Repeats), have proved to be excellent tools for identifying variety and determining genetic relationships.
Vieira, E.S.N.   +4 more
core   +2 more sources

Biparental inbreeding depression, genetic relatedness and progeny vigor in a wind-pollinated treeline species in Argentina [PDF]

open access: yes, 2009
Spatially restricted gene flow and resulting spatial genetic structure are generally considered as being the primary controlling factors in the dynamics of biparental inbreeding depression in a wide range of plant species.
Cocucci, Andrea Aristides   +7 more
core   +2 more sources

Analysis of the genetic diversity of Hepatacodium miconioides at different altitude in Tiantai mountain in Zhejiang Province and its relationship with environmental factors(浙江天台山不同海拔高度七子花种群遗传多样性及其与环境因子的相关性分析)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2005
采用RAPD技术对浙江天台山3个海拔高度的七子花(Heptatcodium miconioides)天然种群的遗传多样性、遗传分化以及与环境因子的相关性进行了研究.12种随机引物在60株个体中共检测到122个可重复的位点.3个种群多态位点百分率为18.85% ~23.77%,平均为21.86%,表明各种群的遗传多样性水平比较低.3个种群Shannon和Nei指数平均为0.132 9、0.092 5,其值较低.虽然3个种群所分布的地理范围小,但种群间存在明显的遗传分化 ...
JINZe-xin(金则新)   +1 more
doaj   +1 more source

The effects of gibberellic acid on Allium cepa root tip meristematic cells

open access: yesBiologia Plantarum, 2019
Gibberellic acid (GA) is a natural plant growth regulator (PGR) which stimulates germination, vegetative growth, flowering, and fruit formation. However, when high concentrations of GA are used, it inhibits plant growth and development and causes ...
B. Tütünoğlu   +3 more
doaj   +1 more source

Anatomy, photochemical activity, and DNA polymorphism in leaves of dwarf tomato irradiated with X-rays

open access: yesBiologia Plantarum, 2017
The response of higher plants to ionising radiation depends on factors related to both radiation properties and plant features including species, cultivar, age, and structural complexity of the target organ.
C. Arena   +6 more
doaj   +1 more source

Assessment of Genetic Diversity in Cultivated Tomato (Solanum Lycopersicum L.) Genotypes Using Rapd Primers

open access: yesJournal of Horticultural Research, 2013
Random Amplified Polymorphic DNA (RAPD) analysis was carried out on 19 Azerbaijan tomato genotypes, both cultivars and local populations. A total of 26 amplified products were revealed by 6 primers. The genetic similarity among evaluated genotypes ranged
Sharifova Saida   +3 more
doaj   +1 more source

Breakdown of scavina resistance in Bahia caused by the evolution of Moniliophthora perniciosa [PDF]

open access: yes, 2012
Resistant clones to witches' broom disease of cacao (WBD), caused by the basidiomycete fungus Moniliophthora perniciosa (Mp) is the most practical and cost efficient strategy for WBD management, but their use is currently restricted to very limited ...
Clément, Didier   +8 more
core  

Genetic variability of elite barley genotypes for brazilian savanna irrigated systems based on RAPD markers

open access: yesBioscience Journal, 2014
The objective of this work was to characterize and quantify the genetic variability of 39 barley elite genotypes from a Brazilian working collection belonging to Embrapa, using RAPD (Random Amplified Polymorphic DNA) molecular markers.
Renato Fernando Amabile   +5 more
doaj  

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