Results 81 to 90 of about 202,542 (217)

New data on known species of Hirschmanniella and Pratylenchus (Rhabditida, Pratylenchidae) from Iran and South Africa

Journal of Nematology, 2019
Hirschmanniella anchoryzae from Iran and Pratylenchus hippeastri from South Africa were recovered during a survey of plant-parasitic nematodes belonging to the family Pratylenchidae. Both species were studied using morphological and molecular techniques.
Shokoohi Ebrahim, Abolafia Joaquín, Mashela Phatu William, Divsalar Nafiseh   +3 more
doaj   +1 more source

Chromosomal differentiation among bisexual European species of Saga (Orthoptera: Tettigoniidae: Saginae) detected by both classical and molecular methods

European Journal of Entomology, 2009
We report the karyotype characteristics including chromosome numbers of Saga campbelli campbelli, S. c. gracilis, and S. rammei using the following classical cytogenetic methods: C-banding, silver staining, and fluorochrome staining DAPI and CMA3.
Elżbieta WARCHAŁOWSKA-ŚLIWA, Beata GRZYWACZ, Anna MARYAŃSKA-NADACHOWSKA, Tatjana V. KARAMYSHEVA, Nikolai B. RUBTSOV, Dragan P. CHOBANOV   +5 more
doaj   +1 more source

Species identification based on the fecal DNA samples of the Caprinae

Acta Biologica Sibirica
Fecal analysis is a useful tool for studying the species identity of rare mammals. The possibility of using non-invasive biological materials in molecular genetic studies of rare bovids is shown, using the example of the markhor and Siberian ibex of ...
Abdurakhim E. Kuchboev, Oybek O. Amirov, Makhamadi B. Abramatov, Bakhtiyor H. Ruziev, Mehmonjon Kh. Egamberdiyev, Rokhatoy R. Karimova   +5 more
doaj   +1 more source

Molecular phylogenetic analysis of a scale insect (Drosicha mangiferae; Hemiptera: Monophlebidae) infesting mango orchards in Pakistan

European Journal of Entomology, 2011
Mango orchards in Pakistan are attacked by the scale insect, Drosicha mangiferae (Hemiptera: Monophlebidae), commonly called the "mango mealybug". This insect is univoltine, active from December through May and targets multiple host plants.
Muhammad ASHFAQ, Jehan ARA, Ali Raza NOOR, Paul D.N. HEBERT, Shahid MANSOOR   +4 more
doaj   +1 more source

Meiotic cellular rejuvenation is coupled to nuclear remodeling in budding yeast. [PDF]

, 2019
Production of healthy gametes in meiosis relies on the quality control and proper distribution of both nuclear and cytoplasmic contents. Meiotic differentiation naturally eliminates age-induced cellular damage by an unknown mechanism.
Chetlapalli, Keerthana, Goodman, Jay S, Jorgens, Danielle M, King, Grant A, McDonald, Kent L, Schick, Jennifer G, Ünal, Elçin   +6 more
core   +1 more source

The significance of cytogenetics for the study of karyotype evolution and taxonomy of water bugs (Heteroptera, Belostomatidae) native to Argentina [PDF]

, 2013
Male meiosis behaviour and heterochromatin characterization of three big water bug species were studied. Belostoma dentatum (Mayr, 1863), B. elongatum Montandon, 1908 and B. gestroi Montandon, 1903 possess 2n = 26 + X1X2Y (male).
Bressa, Maria Jose, Chirino, Monica Gabriela, Papeschi, Alba Graciela   +2 more
core   +2 more sources

NEMATODES OF THE GENUS SETARIA VIBORG, 1795 (FILARIINA: SETARIDAE), THE PARASITES OF THE ANIMALS OF UZBEKISTAN: MORPHOLOGICAL AND MOLECULAR APPROACHES TO THEIR DIFFERENTIATION

Российский паразитологический журнал, 2016
Objective of research:   The purpose of  the  research is to study the species diversity of nematodes of the genus  Setaria, the  character of their distribution among the animals of Uzbekistan and morphologic  and genetic approaches to their ...
D. A. Azimov, K. A. Saparov, F. D. Akramova, A. E. Kuchboyev, M. E. Gaipova, V. I. Golovanov, U. A. Shakarbayev   +6 more
doaj  

DNA sequence evidence for speciation, paraphyly and a Mesozoic dispersal of cancellothyridid articulate brachiopods [PDF]

, 2002
Because the classification of extant and fossil articulate brachiopods is based largely upon shell characters observable in fossils, it identifies morphotaxa whose biological status can, in practice, best be inferred from estimates of genetic divergence.
Cohen, B.L., Luter, C.
core   +1 more source

Increased Ribosome Biogenesis and Increased Oxidative Stress in Blood Leukocytes of Patients With Catatonic Schizophrenia Compared With Paranoid Schizophrenia

Frontiers in Bioscience-Landmark
Background: Schizophrenia (SZ) is associated with chronic oxidative stress in the patient’s body. Previous studies revealed an increased copy number of genes for 47S pre-ribosomal RNA (pre-rRNA) in SZ patients. In this study, levels of
Elisaveta S. Ershova, Natalia N. Veiko, Oksana N. Agafonova, Andrey V. Martynov, Roman V. Veiko, Lev N. Porokhovnik, Tatyana A. Salimova, Georgy P. Kostyuk, Natalia V. Zakharova, Svetlana V. Kostyuk   +9 more
doaj   +1 more source

Cytogenetic relationships within the Maghrebian clade of Festuca subgen. Schedonorus (Poaceae), using flow cytometry and FISH

Anales del Jardín Botánico de Madrid, 2017
Festuca subgen. Schedonorus is a group of broad-leaved fescues, which can be divided into two clades: European and Maghrebian. We employed fluorescent in situ hybridization —FISH— with probes specific for 5S and 35S ribosomal DNA and genome size ...
David Ezquerro-López, David Kopecký, Luis Á. Inda   +2 more
doaj   +1 more source