Results 61 to 70 of about 33,077 (304)

A genotyping protocol for multiple tissue types from the polyploid tree species Sequoia sempervirens (Cupressaceae). [PDF]

, 2015
Premise of the studyIdentifying clonal lineages in asexually reproducing plants using microsatellite markers is complicated by the possibility of nonidentical genotypes from the same clonal lineage due to somatic mutations, null alleles, and scoring ...
Dodd, Richard S, Narayan, Lakshmi, O'Hara, Kevin L   +2 more
core   +2 more sources

The frequency and importance of polyploidy in tropical rainforest tree radiations. [PDF]

New Phytol
Summary The presence of more than two copies of the genome in an organism, termed ‘polyploidy’, is a crucial force in plant evolution, generating genetic, phenotypic and ecological diversity. [Correction added on 22 January 2026, after first online publication: the preceding sentence has been corrected.] The Amazonian tree flora is the most species ...
Schley RJ, Piñeiro R, Nicholls JA, Gaynor ML, Lewis GP, Fonseca Pezzini F, Dexter KG, Kidner C, Pennington RT, Twyford AD.   +9 more
europepmc   +3 more sources

Chromosome numbers in some alien plant species of the Novosibirsk Region: post V

Turczaninowia, 2023
This paper presents the chromosome numbers (2n) for 13 alien species from the families Amaranthaceae, Asteraceae, Brassicaceae, Caryophyllaceae, Malvaceae, Poaceae, Polygonaceae, Rosaceae collected in the Novosibirsk Region.
Елена Юрьевна Зыкова, Татьяна Владимировна Панкова, Мария Николаевна Ломоносова   +2 more
doaj   +1 more source

The utility of NBS profiling for plant systematics: a first study in tuber-bearing Solanum species [PDF]

, 2008
Systematic relationships are important criteria for researchers and breeders to select materials. We evaluated a novel molecular technique, nucleotide binding site (NBS) profiling, for its potential in phylogeny reconstruction.
Berg, R.G., van den, Linden, G., van der, Vosman, B., Wang, M.   +3 more
core   +2 more sources

Impact of polyploidy on plant tolerance to abiotic and biotic stresses

Frontiers in Plant Science, 2022
Polyploidy, defined as the coexistence of three or more complete sets of chromosomes in an organism’s cells, is considered as a pivotal moving force in the evolutionary history of vascular plants and has played a major role in the domestication of ...
Vanesa E. Tossi, Vanesa E. Tossi, Leandro J. Martínez Tosar, Leandro J. Martínez Tosar, Leandro J. Martínez Tosar, Leandro E. Laino, Jesica Iannicelli, Jesica Iannicelli, José Javier Regalado, José Javier Regalado, Alejandro Salvio Escandón, Irene Baroli, Irene Baroli, Humberto Fabio Causin, Sandra Irene Pitta-Álvarez, Sandra Irene Pitta-Álvarez   +15 more
doaj   +1 more source

Genome-wide gene/genome dosage imbalance regulates gene expressions in synthetic Brassica napus and derivatives (AC, AAC, CCA, CCAA)

Frontiers in Plant Science, 2016
Gene/genome dosage balance is an essential evolutionary mechanism for organisms to ensure a normal function, but the underlying causes of dosage-imbalance regulation remain poorly understood.
Chen Tan, Qi Pan, Cheng Cui, Yi Xiang, Xianhong Ge, Zaiyun Li   +5 more
doaj   +1 more source

Ecological niches in the polyploid complex Linum suffruticosum s.l.

Frontiers in Plant Science, 2023
IntroductionThe high frequency of polyploidy in the evolutionary history of many plant groups occurring in the Mediterranean region is likely a consequence of its dynamic paleogeographic and climatic history.
Ana Afonso, Sílvia Castro, João Loureiro, Juan Arroyo, Albano Figueiredo, Sara Lopes, Mariana Castro   +6 more
doaj   +1 more source

Polyploidization and epigenetics [PDF]

Chinese Science Bulletin, 2011
The occurrence of polyploidy, or whole genome duplication, can result in instantaneous speciation. Because new polyploids are immediately reproductively isolated from their non-polyploid congeners, polyploidization has played an important role in the diversification of flowering plants and some vertebrates.
Li, ZhiHui, Lu, Xiang, Gao, Yun, Liu, ShaoJun, Tao, Min, Xiao, Heng, Qiao, YunQian, Zhang, YaPing, Luo, Jing   +8 more
openaire   +1 more source

Cytoplasmic p21 promotes stemness of colon cancer cells via activation of the NFκB pathway

Molecular Oncology, EarlyView.
Cytoplasmic p21 promotes colorectal cancer stem cell (CSC) features by destabilizing the NFκB–IκB complex, activating NFκB signaling, and upregulating BCL‐xL and COX2. In contrast to nuclear p21, cytoplasmic p21 enhances spheroid formation and stemness transcription factor CD133.
Arnatchai Maiuthed, Kerstin Huebner, Katharina Erlenbach‐Wuensch, Chuanpit Hampel, Daniela Thalheim, Adriana Vial‐Roehe, Bodee Nutho, Susanne Merkel, Arndt Hartmann, Pithi Chanvorachote, Regine Schneider‐Stock   +10 more
wiley   +1 more source

A simple and efficient approach to elucidate genomic contribution of transcripts to a target gene in polyploids: the case of hexaploid wheat (Triticum aestivum L.)

Frontiers in Plant Science, 2016
Common wheat (Triticum aestivum L.) is one of the most economically important crops in the world, however, gene functional studies in this crop have been lagging mainly due to the complexity of its polyploid genome, which is derived through two rounds of
Vijaya R. Chitnis, Tran-Nguyen Nguyen, Belay T. Ayele   +2 more
doaj   +1 more source