Results 11 to 20 of about 80,571 (261)

CLONAL VARIATION IN PARAMECIUM. I. PERSISTENT UNSTABLE CLONES [PDF]

Genetics, 1972
ABSTRACT Clones of Paramecium of identical serotype when cultured in test tubes may differ in their ability to give rise to subclones of this serotype. Characteristically, stable clones yield progeny indistinguishable from their parents, while from unstable clones diverse subclones with new serotypes can be isolated repeatedly.
I, Finger, C, Heller, L, Dilworth, C, Von Allmen   +3 more
openaire   +2 more sources

The Seagrass Methylome Is Associated With Variation in Photosynthetic Performance Among Clonal Shoots

Frontiers in Plant Science, 2020
Evolutionary theory predicts that clonal organisms are more susceptible to extinction than sexually reproducing organisms, due to low genetic variation and slow rates of evolution.
Alexander Jueterbock, Alexander Jueterbock, Christoffer Boström, James A. Coyer, James A. Coyer, Jeanine L. Olsen, Martina Kopp, Anusha K. S. Dhanasiri, Irina Smolina, Sophie Arnaud-Haond, Yves Van de Peer, Yves Van de Peer, Yves Van de Peer, Galice Hoarau   +13 more
doaj   +1 more source

Size‐selective predation accounts for intra‐ and inter‐specific variation of inducible morphological defense of Daphnia

Ecosphere, 2020
Inducible defense is adaptive when prey organisms cope with fluctuations of predation risk, and there exists ample variations of inducible defense both within a species and between species even in a single habitat. Daphnia, a freshwater zooplankton genus,
Mariko Nagano, Takehito Yoshida
doaj   +1 more source

Clonal Variation Based on Some Morphological and Micromorphological Characteristics in the Boyabat (Sinop/Turkey) Black Pine (Pinus nigra subsp. pallasiana (Lamb.) Holmboe) Seed Orchard

BioResources, 2023
Seed orchards with high hereditary qualities and the improvement studies used are of great importance. This study was carried out on individuals in a Boyabat grafted black pine seed orchard, Sinop. The morphological and micromorphological measurements of
Nurcan Yiğit, Ayşe Öztürk, Hakan Şevik, Halil Barış Özel, Fathi Elmabruk Ramadan Kshkush, Berkant Işık   +5 more
doaj   +2 more sources

Structure of O-Antigen and Hybrid Biosynthetic Locus in Burkholderia cenocepacia Clonal Variants Recovered from a Cystic Fibrosis Patient

Frontiers in Microbiology, 2017
Burkholderia cenocepacia is an opportunistic pathogen associated with chronic lung infections and increased risk of death in patients with cystic fibrosis (CF).
A.A. Hassan, Rita F. Maldonado, Sandra C. dos Santos, Flaviana Di Lorenzo, Alba Silipo, Carla P. Coutinho, Vaughn S. Cooper, Antonio Molinaro, Miguel A. Valvano, Isabel Sá-Correia   +9 more
doaj   +1 more source

Predictable and stable epimutations induced during clonal plant propagation with embryonic transcription factor.

PLoS Genetics, 2022
Clonal propagation is frequently used in commercial plant breeding and biotechnology programs because it minimizes genetic variation, yet it is not uncommon to observe clonal plants with stable phenotypic changes, a phenomenon known as somaclonal ...
Anjar Tri Wibowo, Javier Antunez-Sanchez, Alexander Dawson, Jonathan Price, Cathal Meehan, Travis Wrightsman, Maximillian Collenberg, Ilja Bezrukov, Claude Becker, Moussa Benhamed, Detlef Weigel, Jose Gutierrez-Marcos   +11 more
doaj   +1 more source

Effects of highland environments on clonal diversity in aquatic plants: An interspecific comparison study on the Qinghai-Tibetan Plateau

Frontiers in Plant Science, 2022
Clonal reproduction is one of the most distinctive characteristics of plants and is common and diverse in aquatic macrophytes. The balance between sexual and asexual reproduction is affected by various conditions, especially adverse environments. However,
Zhigang Wu, Zhong Wang, Zhong Wang, Dong Xie, Dong Xie, Huijun Wang, Huijun Wang, Aiwen Zhao, Aiwen Zhao, Yalin Wang, Yalin Wang, Hanling Wang, Xinwei Xu, Tao Li, Jindong Zhao, Jindong Zhao   +15 more
doaj   +1 more source

1H-NMR-based endometabolome profiles of Burkholderia cenocepacia clonal variants retrieved from a cystic fibrosis patient during chronic infection

Frontiers in Microbiology, 2016
During cystic fibrosis (CF) chronic lung infections, bacteria of the Burkholderia cepacia complex (Bcc) are exposed for several years to a stressful and changing environment.
Ana Sílvia Moreira, Artur Bastos Lourenço, Artur Bastos Lourenço, Isabel Sá-Correia   +3 more
doaj   +1 more source

Multiple Stressor Differential Tolerances: Possible Implications at the Population Level. [PDF]

PLoS ONE, 2016
The probability of the most sensitive genotypes being eliminated from a population due to a contaminant pulse--genetic erosion--is negatively associated to the within-genotype variation.
Cátia Venâncio, Rui Ribeiro, Amadeu Soares, Isabel Lopes   +3 more
doaj   +1 more source

Clonal reproduction and natural variation of Populus canescens patches [PDF]

Tree Physiology, 2010
Trees growing in their natural habitat represent a valuable resource for elucidating mechanisms of adaptation to environmental constraints. Along the Erqis river, there are various Populus forests, which provide 'natural laboratories' for studying tree ecophysiological responses to their habitat.
Caiyun He, Shuxing Zheng, Jianguo Zhang, Aiguo Duan, Yanfei Zeng, Kai Cui, Ron Sederoff   +6 more
openaire   +2 more sources