Results 61 to 70 of about 3,514 (209)

Establishment and characterization of two human breast carcinoma cell lines by spontaneous immortalization: Discordance between Estrogen, Progesterone and HER2/neu receptors of breast carcinoma tissues with derived cell lines [PDF]

, 2012
Background: Breast cancer is one of the most common cancers among women throughout the world. Therefore, established cell lines are widely used as in vitro experimental models in cancer research.Methods: Two continuous human breast cell lines, designated
Akmal, S.N., Azari, S., Houshmand, M., Jafarzadeh, N., Kamalidehghan, B., Kamalidehghan, F., Rosli, R.   +6 more
core   +1 more source

Friends without benefits: Extensive cytotype sympatry and polyploid persistence in an African geophyte

American Journal of Botany, Volume 111, Issue 8, August 2024.
Abstract Premise Polyploidy is a major factor in plant adaptation and speciation. Multiple mechanisms contribute to autopolyploid frequency within populations, but uncertainties remain regarding mechanisms that facilitate polyploid establishment and persistence.
Damian Vaz de Sousa, Michelle Greve, Kenneth C. Oberlander   +2 more
wiley   +1 more source

Karyology Study of Ten Trifolium Species in Fars Province [PDF]

Journal of Genetic Resources, 2019
Chromosome information is an important key for taxonomy, phylogeny and genetic in Trifolium plants. Thus, ten Trifolium species namely T. grandiflorum, T. resupinatum, T. dasyurum, T. campestre, T. tomentosum, T. hirtum, T. scabrum, T.
Mehrnaz Riasat, Sara Sadeghian
doaj   +1 more source

Evidence for feminized genetic males in a flea beetle using newly identified X‐linked markers

Ecology and Evolution, Volume 14, Issue 8, August 2024.
This study investigates the highly female‐biased sex ratio in the flea beetle Altica lythri, examining potential mechanisms such as Wolbachia‐induced feminization of genetic males. Through transcriptomic analysis and the establishment of genotypic sex differentiation markers using the SEX‐DETector approach, we provide evidence that feminization of ...
Kim Rohlfing, Malte Grewoldt, Mathilde Cordellier, Susanne Dobler   +3 more
wiley   +1 more source

The Karyological Rewiev of Gymnosperms on the Base of Database of the Chromosome Numbers [PDF]

Журнал Сибирского федерального университета: Серия Биология, 2008
A review on karyology of modern gymnosperms with the use of database «Chromosomе numbers of gymnosperms» is done. At present the database includes information on 1036 species, 85 genera, 15 families, 10 orders and 4 classes of gymnosperms. Information on
Elena N. Muratova, Svetlana G. Knyazeva
doaj  

A new species of Astragalus L. sect. Sesamei DC. (Leguminosae) from the southeast of Spain: Astragalus castroviejoi

Anales del Jardín Botánico de Madrid, 2010
We describe a new species of Astragalus section Sesamei from the semiarid zone of SE Spain: Astragalus castroviejoi. Morphologically the new species resembles A. sesameus L. and A. stella L. and we provide a key to distinguish the three species.
Salvador Talavera Lozano, Pedro Sánchez-Gómez, David López García, Juan Francisco Jiménez Martínez, Juan Francisco Mota Poveda   +4 more
doaj   +1 more source

Dated phylogeny, phylogeography, and classification of Allium subgenus Amerallium (Amaryllidaceae) from the Old World, based on six DNA fragments

TAXON, Volume 73, Issue 4, Page 971-991, August 2024.
Abstract The present study aims to reveal phylogenetic and phylogeographical patterns of the Eurasian species of Allium subg. Amerallium, covering 75% of the species in the Mediterranean region and East Asia, as well as 12 North American species representing most sections of the monophyletic American part of the subgenus.
Nikolai Friesen, Tobias Herden, Mathias Leweke, Lisa Grützmacher, Ori Fragman‐Sapir, Herbert Hurka, Frank R. Blattner, Reinhard M. Fritsch   +7 more
wiley   +1 more source

Karyological analysis of the five native Macaronesian Festuca (Gramineae) grasses supports a distinct diploid origin of two schizoendemic groups

Anales del Jardín Botánico de Madrid, 2009
A karyological analysis has been conducted of all five native Macaronesian Festuca grasses belonging to fine-leaved F. subg. Festuca sect. Aulaxyper and broad-leaved F. subg. Drymanthele sect. Phaeochloa Loliinae lineages.
Miguel Menezes de Sequeira, Antonio Díaz-Pérez, Arnoldo Santos-Guerra, Juan Viruel, Pilar Catalán   +4 more
doaj   +1 more source

Occurrence of Chromosomal Polymorphism in a Striped Ichthyophid Caecilian (Amphibia: Gymnophiona) from Western Ghats of India [PDF]

, 2014
Mitotic and meiotic chromosomes prepared from specimens of Ichthyophis italics tricolor collected from either side of Palghat Gap from three different locations of Western Ghats revealed a diploid number (2n=42-44) with Fundamental Number (62-64 ...
Venu Govindappa, .
core  

Historical and contemporary processes driving the origin and structure of an admixed population within a contact zone between subspecies of a north temperate diadromous fish

Molecular Ecology, Volume 33, Issue 15, August 2024.
Abstract Hybridization between divergent lineages can result in losses of distinct evolutionary taxa. Alternatively, hybridization can lead to increased genetic variability that may fuel local adaptation and the generation of novel traits and/or taxa.
Amy Liu, Armando Geraldes, Eric B. Taylor   +2 more
wiley   +1 more source