Results 1 to 10 of about 35,825 (283)

Wider geographic distribution and higher diversity of hexaploids than tetraploids in Carassius species complex reveal recurrent polyploidy effects on adaptive evolution

Scientific Reports, 2017
Polyploidy roles on adaptive evolution and ecological novelty have been extensively studied in plants but remained unclear in vertebrates owing to the rare polyploidy incidences.
Jian-Feng Mao, Xiaoli Liu, Zhong-Wei Wang   +2 more
exaly   +4 more sources

ROOTING SHOOTS OF APPLE VARIETIES AND THEIR TETRAPLOIDS OBTAINED BY THE IN VITRO TECHNIQUE [PDF]

Acta Scientiarum Polonorum: Hortorum Cultus, 2019
For breeding purposes, the number of neo-tetraploids of apple cultivars have been derived by in vitro technique. The first attempts at rooting and acclimatization of tetraploid shoots failed.
Małgorzata Podwyszyńska, Mirosława Cieślińska   +1 more
doaj   +5 more sources

Tetraploids do not form cushions: association of ploidy level, growth form and ecology in the High Arctic Saxifraga oppositifolia L. s. lat. (Saxifragaceae) in Svalbard [PDF]

Polar Research, 2013
Saxifraga oppositifolia L. is a common circumpolar plant species that displays considerable morphological and genetic variation throughout its range. It is mainly diploid, but tetraploids are reported from several regions.
Pernille Bronken Eidesen, Eike Müller, Christian Lettner, Inger Greve Alsos, Morgan Bender, Martin Kristiansen, Bart Peeters, Froukje Postma, Koen Frans Verweij   +8 more
doaj   +5 more sources

Morphological, Transcriptome, and Hormone Analysis of Dwarfism in Tetraploids of Populus alba × P. glandulosa

International Journal of Molecular Sciences, 2022
Breeding for dwarfism is an important approach to improve lodging resistance. Here, we performed comparative analysis of the phenotype, transcriptome, and hormone contents between diploids and tetraploids of poplar 84K (Populus alba × P.
Yongyu Ren, Shuwen Zhang, Tingting Xu, X. Kang   +3 more
semanticscholar   +2 more sources

Different Patterns of Ecological Divergence Between Two Tetraploids and Their Diploid Counterpart in a Parapatric Linear Coastal Distribution Polyploid Complex

Frontiers in Plant Science, 2020
Polyploidization is a widespread mechanism of evolutionary divergence in flowering plants. Ecological divergence of polyploid lineages has been proposed as a key process shaping the distribution of cytotypes in nature (niche shift hypothesis); however ...
Mariana Castro, João Loureiro, Albano Figueiredo, Miguel Serrano, Brian C. Husband, Sílvia Castro   +5 more
doaj   +2 more sources

Variable but Inheritable: Colchicine-Induced Polyploidy in Phaseolus vulgaris Generates Physiological Variability with Limited Inheritance [PDF]

Plants
Polyploidy is widely used in plant breeding to increase phenotypic variation and potentially improve stress-related traits; however, its effects in common bean remain poorly characterized.
Vera Martínez-Barradas, Gabriela Olivo-Vidal, Rodrigo Mora-Sanhueza, Francisco Barco-Rubio, Gabriela Jarpa-Tauler, René Morales, Marjorie Reyes-Díaz, Ricardo Tighe-Neira, Claudio Inostroza-Blancheteau, Patricio Arce-Johnson   +9 more
doaj   +2 more sources

Transcriptomic Analysis Reveals the Growth Regulatory Mechanisms in Diploid, Triploid, and Tetraploid Pacific Oyster (Crassostrea gigas) [PDF]

Animals
Ploidy level exerts profound influences on the phenotypic and physiological traits of Crassostrea gigas. Compared to diploids, triploids exhibit desirable characteristics such as sterility, a faster growth rate, and improved meat quality.
Yuting Meng, Yousen Zhang, Weijun Wang, Yancheng Zhao, Daowen Qiu, Zan Li, Guohua Sun, Cuiju Cui, Qiang Wang, Zhongyi Liu, Jianmin Yang   +10 more
doaj   +2 more sources

Chromatid segregation of tetraploids and hexaploids. [PDF]

Genetics, 1949
Hilda Geiringer
exaly   +3 more sources

Genome Size Variation in Dianthus sylvestris Wulfen sensu lato (Caryophyllaceae)

Plants, 2022
Genome size (GS) is an important characteristic that may be helpful in delimitation of taxa, and multiple studies have shown correlations between intraspecific GS variation and morphological or environmental factors, as well as its geographical ...
Ana Terlević, Sandro Bogdanović, Božo Frajman, Ivana Rešetnik   +3 more
doaj   +1 more source

Morphological, ecological and geographic differences between diploids and tetraploids of Symphytum officinale (Boraginaceae) justify both cytotypes as separate species

AoB Plants, 2022
Polyploidization is generally considered to be an important evolutionary driver affecting the genetic diversity, that can alter the morphology, phenology, physiology or ecology of plants, which in turn may make the taxonomy of polyploids more difficult ...
L. Kobrlová, M. Duchoslav, M. Hroneš
semanticscholar   +1 more source