Results 61 to 70 of about 3,086 (187)

Relevance of unilateral and bilateral sexual polyploidization in relation to intergenomic recombination and introgression in Lilium species hybrids [PDF]

Sexual polyploids were induced in diploid (2n = 2x = 24) interspecific F1 hybrids of Longiflorum × Asiatic (LA) and Oriental × Asiatic (OA) Lilium hybrids by backcrossing to Asiatic (AA) parents as well as by sib-mating of the F1 LA hybrids.
Arens, P.F.P., Barba Gonzalez, R., Nadeem Khan, M., Ramanna, M.S., Tuyl, J.M., van, Visser, R.G.F.   +5 more
core   +3 more sources

Bulbil formation in stress: Crucial role of triploid fitness in mixed ploidy dynamics in Costus speciosus

Plant Species Biology, Volume 41, Issue 1, January 2026.
Upon prolonged waterlogging, a Costus speciosus plant developed bulbils at stem node. Karyotype analysis, nucleolar staining, and anatomical study revealed its triploid status and developmental aspects. Prevalence of tetraploid, abundance, and unique reproductive fecundity of the triploid, indicates its determinant role in coexistence of the multiple ...
Surochita Basu, Uttam Deb, Reecha Das, Supriya Adhikari   +3 more
wiley   +1 more source

The evolutionary significance of polyploidy [PDF]

, 2017
Polyploidy, or the duplication of entire genomes, has been observed in prokaryotic and eukaryotic organisms, and in somatic and germ cells. The consequences of polyploidization are complex and variable, and they differ greatly between systems (clonal or ...
A Amores, A Hoshino, A Kaya, A Madlung, A Rode, A Salman-Minkov, AA Myburg, AC Gerstein, AH Yona, AJ Poustka, AM Diallo, AM Selmecki, AM Session, AR Leitch, AS Mason, AV Borodkina, AV Markov, AY Kuznetsova, BA Edgar, BC Husband, BD Marchant, BK Mable, BK Mable, BP Oswald, BR Mardin, BR Ruhfel, C Berthelot, C Lange, C Parisod, C Parisod, CB Foster, CH Huang, CM Caldwell, D Dikovskaya, D Vekemans, DC Tank, DE Soltis, DE Soltis, DE Soltis, DE Soltis, DE Soltis, DE Soltis, DG Bock, DJ Gordon, DY Chao, E Pierazzo, E van den Bergh, EA Kellogg, EC de Bruin, EH Cho, EJ Edwards, ES Sollars, Eshchar Mizrachi, EW McCarthy, EW McCarthy, F Vergara, FM Robertson, G Hu, GC Conant, GC Conant, GL Stebbins, H Visscher, H Zhang, I Mayrose, I Mayrose, IA Hurley, J Cai, J Coward, J Ramsey, J Ramsey, J Soppa, J Soppa, JA Birchler, JA Fawcett, JE Barrick, JE Bowers, JF Schmitz, JJ Doyle, JL Olsen, JM Kreiner, JP Gallagher, JS Taylor, JT Clarke, JV Bredeson, K Bomblies, K Gross, K Tanaka, K Vanneste, K Vanneste, K Vanneste, K Voordeckers, KA Segraves, Kathleen Marchal, KC Oberlander, KD Crow, KH Wolfe, KL Glennon, KP Schoenfelder, L Comai, L De Veylder, L Lv, L Yant, L Yant, LA Meyers, LM Corrochano, M Ceccarelli, M Freeling, M Freeling, M Iorizzo, M Ruiz, M te Beest, M Wille, MA Campbell, MA Hahn, MC Estep, ME Schranz, MJ Yoo, MK Pandit, ML Ainouche, MS Barker, MS Barker, MS Barker, N Arrigo, N De Storme, NJ Kenny, NL Fowler, P Dehal, PM Yang, PP Edger, PP Singh, PP Singh, PR Renne, PS Soltis, PS Soltis, PS Soltis, Q Song, R De Smet, R Lohaus, R Ming, RF Furlong, RJ Hijmans, S Breuert, S Kagale, S Lien, S Maere, S Magallon, S Ohno, S Santaguida, S Theodoridis, SB Cannon, SK Maciver, SM Dewhurst, SM Hovick, SP Otto, SV Petersen, SV Scarpino, T Davoli, T Fujiwara, T Makino, TE Wood, TL Orr-Weaver, UC Lavania, V Pecoraro, W Zhou, WM Kurschner, X Shi, Y Jiao, Y Nakatani, Y Pecrix, Y Van de Peer, Y Van de Peer, Y Van de Peer, Y Yu, Yves Van de Peer, Z Fang, Z Li, Z Li   +176 more
core   +1 more source

Repeated Independent Formation of Triploid Lineages Contributes to Clonal Diversity in Heteronotia binoei Parthenogens

Molecular Ecology, Volume 35, Issue 2, January 2026.
ABSTRACT Parthenogenesis, or all‐female clonal reproduction, is rare among vertebrates. This is often attributed to the selective disadvantages of assumed reduction of genetic diversity in the absence of sex. However, parthenogenetic vertebrates have highly complex evolutionary histories, with most arising through hybridisation and many being polyploid.
Kate E. O'Hara, Stephen M. Zozaya, Erin E. Hahn, Clare E. Holleley, Craig Moritz   +4 more
wiley   +1 more source

Unreduced gamete formation in plants: mechanisms and prospects [PDF]

, 2017
Polyploids, organisms with more than two sets of chromosomes, are widespread in flowering plants, including many important crop species. Increases in ploidy level are believed to arise commonly through the production of gametes that have not had their ...
Brownfield, Lynette, Köhler, Claudia
core  

Abnormal chromosome behavior during meiosis in the allotetraploid of Carassius auratus red var. (♀) × Megalobrama amblycephala(♂) [PDF]

, 2014
BACKGROUND: Allopolyploids generally undergo bivalent pairing at meiosis because only homologous chromosomes pair up. On the other hand, several studies have documented abnormal chromosome behavior during mitosis and meiosis in allopolyploids plants ...
Jing Dai, Juan Wang, Qinbo Qin, Shaojun Liu, Yude Wang, Yun Liu   +5 more
core   +1 more source

Polyploid Arabidopsis species originated around recent glaciation maxima [PDF]

, 2018
Polyploidy may provide adaptive advantages and is considered to be important for evolution and speciation. Polyploidy events are found throughout the evolutionary history of plants, however they do not seem to be uniformly distributed along the time axis.
Hohmann, Nora, Novikova, Polina, Van de Peer, Yves   +2 more
core   +2 more sources

The second highest chromosome count among vertebrates is observed in cultured sturgeon and is associated with genome plasticity [PDF]

, 2016
Additional file 1: Table S1. Genotyping results with highlighted private dam and sire microsatellite alleles observed at all analysed loci for parental individuals, and for pentaploid (5n) and heptaploid (7n) full ...
Dmytro Bytyutskyy, Martin Flajšhans, Miloš Havelka, Petr Ráb, Radka Symonová   +4 more
core   +4 more sources

Introgression of Leptosphaeria maculans Resistance From Hexaploid Brassica Into Brassica napus

Plant Pathology, Volume 75, Issue 1, January/February 2026.
Blackleg resistance was introgressed from resistant hexaploid Brassica. Phenotyping and genotyping was conducted to determine the presence of known resistance genes. The absence of resistance following phenotyping and genotyping suggests that novel resistance may have been introgressed from hexaploid Brassica.
Keval Shah, Duoduo Wang, Liang Zhao, Sakaria Liban, W. G. Dilantha Fernando, Curt A. McCartney, Claudio Stasolla, Robert W. Duncan   +7 more
wiley   +1 more source

Introgression in interspecific hybrids of lily [PDF]

, 2002
In order to introduce new desirable characters into the cultivar assortment of lily a range of interspecific crossing barriers has to be overcome. By using various pollination and embryo rescue techniques pre- and postfertilization barriers were overcome
Lim, K.B., Maas, I.W.G.M., Tuyl, J.M., van   +2 more
core   +2 more sources