Results 31 to 40 of about 6,984 (172)

Polyploidy in tissues of plants in vitro of grape somaclones

BIO Web of Conferences, 2021
In vitro experimental plants obtained by clonal micropropagation of 9 grape somaclones of 5 original forms were the material for cytogenetic research. A biological microscope XSP-146TP was used for cytogenetic analysis.
Klimenko Viktor, Lushchay Ekaterina, Zlenko Valeryi   +2 more
doaj   +1 more source

Effects of ploidy level and haplotype on variation of photosynthetic traits: Novel evidence from two Fragaria species.

PLoS ONE, 2017
To reveal the effects of ploidy level and haplotype on photosynthetic traits, we chose 175 genotypes of wild strawberries belonging to two haplotypes at two types of ploidy levels (diploidy and tetraploidy) and measured photosynthetic traits. Our results
Song Gao, Qiaodi Yan, Luxi Chen, Yaobin Song, Junmin Li, Chengxin Fu, Ming Dong   +6 more
doaj   +1 more source

Genotyping of suspected partial hydatidiform moles – our experiences and future directions

Pathology and Oncology Research
This brief research report summarizes our experience with the molecular differential diagnosis of clinically or pathologically suspected partial hydatidiform moles and discusses practical diagnostic options when economic resources or laboratory ...
Lajos Gergely, Lajos Gergely, Vanda Repiska, Juraj Hutnik, Natalia Andova, Lubica Milosovicova, Miroslav Korbel, Miroslav Korbel, Liam McCullough, Liam McCullough, Alexandra Kristufkova, Ludovit Danihel, Ludovit Danihel, Helena Gbelcova, Petra Priscakova   +14 more
doaj   +1 more source

Mutagenesis by retroviral insertion in chemical mutagen-generated quasi-haploid mammalian cells

BioTechniques, 2007
Diploidy is a major obstacle to the mutagenic analysis of function in cultured mammalian cells. Here, we show that 6–8 rounds of chemical mutagenesis generates quasi-haploid cells that can be used as targets for insertional mutagenesis using a specially ...
Sung O. Kim, Soon-Duck Ha, Sangun Lee, Sarah Stanton, Bruce Beutler, Jiahuai Han   +5 more
doaj   +1 more source

Pollen heteromorphism in Schleichera Lour. (Sapindaceae), observed in surface soil samples from central India

Acta Palaeobotanica, 2021
Angiosperms display striking variation of pollen morphological features within and between populations of the same species, as well as within individual plants.
Md. Firoze Quamar, Biswajeet Thakur, Veeru Kant Singh, Santosh Kumar Pandey   +3 more
doaj   +1 more source

Applications of Genome Editing Technology in Research on Chromosome Aneuploidy Disorders

Cells, 2020
Chromosomal segregation errors in germ cells and early embryonic development underlie aneuploidies, which are numerical chromosomal abnormalities causing fetal absorption, developmental anomalies, and carcinogenesis.
Silvia Natsuko Akutsu, Kazumasa Fujita, Keita Tomioka, Tatsuo Miyamoto, Shinya Matsuura   +4 more
doaj   +1 more source

Comparative analysis of the complete chloroplast genome between tetraploidy and diploidy of Cyclocarya paliurus (Batal.) Iljinskaja

Mitochondrial DNA. Part B. Resources, 2021
Cyclocarya paliurus (Batal.) Iljinskaja, a monotypic species in Cyclocarya of Juglandaceae, is regarded as one of important medical plants in China.
Yinquan Qu, Qian Wang, Yanhao Yu, Xiangxiang Fu   +3 more
doaj   +1 more source

Is urbanisation a barrier to genetic diversity in the solitary specialist bee, Melissodes druriellus?

Insect Conservation and Diversity, EarlyView.
Bees are integral pollinators commonly found in and supported by urban green spaces; however, their eco‐evolutionary response to urbanisation varies interspecifically. While several studies have explored the population and landscape genetics of bees in response to urbanisation, few have examined solitary or specialist species which may be more ...
Anthony C. Ayers, Sargon Yousefian Dezag Tekkie, S. Eryn McFarlane, Sandra M. Rehan   +3 more
wiley   +1 more source

A single mutation results in diploid gamete formation and parthenogenesis in a Drosophila yemanuclein-alpha meiosis I defective mutant

BMC Genetics, 2010
Background Sexual reproduction relies on two key events: formation of cells with a haploid genome (the gametes) and restoration of diploidy after fertilization.
Capri Michèle, Rosset Roland, Delaage Michèle, Meyer Régis E, Aït-Ahmed Ounissa   +4 more
doaj   +1 more source

The consequences of partial clonality on the spatiotemporal genetic structure of the red alga Chondria tumulosa (Ceramiales, Rhodophyta)

Journal of Phycology, EarlyView.
Abstract The relative rates of sexual versus clonal reproduction partition genetic diversity, but the quantification of these rates remains limited in natural populations. This knowledge gap is particularly acute among tropical macroalgae. Chondria tumulosa is a red macroalga that has been documented at high abundance in the three northernmost atolls ...
Taylor M. Williams, Heather L. Spalding, Solenn Stoeckel, Brian B. Hauk, Jonathan Plissner, Randall K. Kosaki, Stacy A. Krueger‐Hadfield   +6 more
wiley   +1 more source