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Reduced and unreduced gametes combine almost freely in a multiploidy system
We examined the processes operating in mixed-ploidy populations using a general gametic model parameterized by a factorial hybridization experiment. We corroborate the hypothesis that unreduced gametes combining freely amon...
EF - Botanika
- 2016 •
- Jx •
- Link
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Výsledek na webu
Mating interactions between coexisting diploid, triploid and tetraploid cytotypes of Hieracium echioides (Asteraceae)
karyologically analysed plants. Unreduced egg cells production was detected in triploids and tetraploids, on the contrary, formation of unreduced pollen was recorded only in two cases in triploids. Triploid plants produced x, 2x an...
EF - Botanika
- 2006 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Enriching ploidy level diversity: the role of apomictic and sexual biotypes of Hieracium subgen. Pilosella (Asteraceae) that coexist in polyploid populations
mothers. The role of the high-polyploid hybrids, which arose from fertilized unreduced female gametes of apomicts, is pointed out. Such hybrids serve as important source......
EF - Botanika
- 2009 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Ploidy frequencies in plants with ploidy heterogeneity: fitting a general gametic model to empirical population data
of several parameters, namely the unreduced gamete proportions and fertilities of higher, and coexistenceof several ploidy levels, we developed a general gametic model for diploid......
EF - Botanika
- 2013 •
- Jx •
- Link
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Výsledek na webu
Hybridization between diploid Centaurea pseudophrygia and tetraploid C. jacea (Asteraceae): the role of mixed pollination, unreduced gametes, and mentor effects
, including triploids (originating from reduced gametes) and tetraploids (involving unreduced gametes of the diploids). In contrast, hybrids were almost absent among seeds......
EF - Botanika
- 2011 •
- Jx •
- Link
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Výsledek na webu
Defects in meiotic chromosome segregation lead to unreduced male gametes in Arabidopsis SMC5/6 complex mutants
is caused by a meiotic defect leading to the production of unreduced male gametes are maternally lethal. Upon fertilization with an unreduced pollen, the unbalanced maternal......
Cell biology
- 2021 •
- Jimp •
- Link
Rok uplatnění
Jimp - Článek v periodiku v databázi Web of Science
Výsledek na webu
Polyploidization as an opportunistic mutation: The role of unreduced gametes formation and genetic drift in polyploid establishment
a theoretical model in which autopolyploidization occurs through the production of unreduced gametes, a trait modelled as a quantitative trait that is allowed to vary through time......
Plant sciences, botany
- 2022 •
- Jimp •
- Link
Rok uplatnění
Jimp - Článek v periodiku v databázi Web of Science
Výsledek na webu
The novel expression of clonality following whole-genome multiplication compensates for reduced fertility in natural autopolyploids
of aneuploid progeny. All cytotypes, but particularly triploids, produced gametes of varying ploidy, including unreduced ones, that participated in frequent intercytotype......
Plant sciences, botany
- 2023 •
- Jimp •
- Link
Rok uplatnění
Jimp - Článek v periodiku v databázi Web of Science
Výsledek na webu
Hieracium subgen. Pilosella: Progenies diversity in facultative apomictic and sexual taxa.
Three progeny groups were analysed by flow cytometry seed screen. Progeny of apomictic hexaploid Hieracium bauhini and sexual hexaploid Hieracium pilosella were uniform. In progeny of pentaploid facultative apomictic Hieracium bauhini four different ...
EF - Botanika
- 2006 •
- D
Rok uplatnění
D - Stať ve sborníku
Origin, genetic structure and evolutionary potential of the natural hybrid Ranunculus circinatus × R. fluitans
Amplifed fragment length polymorphisms (AFLP) and flow cytometry were applied to determine the genetic and cytogenetic variation among 36 riverine populations of the hybrid Ranunculus circinatus × R. fluitans in Poland, male and female sterility of t...
Plant sciences, botany
- 2023 •
- Jimp •
- Link
Rok uplatnění
Jimp - Článek v periodiku v databázi Web of Science
Výsledek na webu
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