TY  - JOUR
AU  - Fotirić-Akšić, Milica
AU  - Cerović, Radosav
AU  - Ercisli, Sezai
AU  - Jensen, Martin
PY  - 2016
UR  - http://aspace.agrif.bg.ac.rs/handle/123456789/4113
AB  - The Oblacinska sour cherry (Prunus cerasus) is a mixture of different clones with similar tree and fruit characteristics that is indigenous to and widely planted in commercial orchards in Serbia. Sour cherry, including Oblacinska sour cherry clones, exhibits irregular meiosis which may contribute to low fruit set in some selections. The goal of this study was to examine the process of microsporogenesis and to determine if meiosis and its anomalies effect the in vitro pollen germination and pollen tube length in four 'Oblacinska' sour cherry clones that differ in fruit set and yields. All clones displayed varying degrees of chromosomal abnormalities in all meiosis sub-phases. The abnormalities became evident from late pachytene with more than half of the pollen mother cells (PMC) showing abnormal conjugation of chromosomes in metaphase I. The lowest number of PMCs with laggards was in clone III/9 and the highest in clone XIII/1. In second division, the univalent and multivalent association was observed at metaphase-II, the lagging and stickiness in anaphase-II, and the phenomenon persisted up to the microspore stage. In all four 'Oblacinska' clones, PMCs exhibited cytomixis phenomena, however, it was only observed in the second experimental year. Cytomixis differed among the four clones but was equally frequent in all stages of meiosis. The syncytia formed, most often consisted of 2-3 PMCs that were at the same phase of meiosis, and exhibited common cytoplasm and occasionally nuclear fusion. In vitro pollen germination and pollen tube length significantly differed between the clones. Most probably abnormalities during meiosis, regardless of the good results of pollen germination, influenced the reduced potential clones XI/3 and XIII/1.
PB  - Elsevier Gmbh, Munich
T2  - Flora
T1  - Microsporogenesis and meiotic abnormalities in different 'Oblacinska' sour cherry (Prunus cerasus L.) clones
EP  - 34
SP  - 25
VL  - 219
DO  - 10.1016/j.flora.2015.12.009
ER  - 

@article{
author = "Fotirić-Akšić, Milica and Cerović, Radosav and Ercisli, Sezai and Jensen, Martin",
year = "2016",
abstract = "The Oblacinska sour cherry (Prunus cerasus) is a mixture of different clones with similar tree and fruit characteristics that is indigenous to and widely planted in commercial orchards in Serbia. Sour cherry, including Oblacinska sour cherry clones, exhibits irregular meiosis which may contribute to low fruit set in some selections. The goal of this study was to examine the process of microsporogenesis and to determine if meiosis and its anomalies effect the in vitro pollen germination and pollen tube length in four 'Oblacinska' sour cherry clones that differ in fruit set and yields. All clones displayed varying degrees of chromosomal abnormalities in all meiosis sub-phases. The abnormalities became evident from late pachytene with more than half of the pollen mother cells (PMC) showing abnormal conjugation of chromosomes in metaphase I. The lowest number of PMCs with laggards was in clone III/9 and the highest in clone XIII/1. In second division, the univalent and multivalent association was observed at metaphase-II, the lagging and stickiness in anaphase-II, and the phenomenon persisted up to the microspore stage. In all four 'Oblacinska' clones, PMCs exhibited cytomixis phenomena, however, it was only observed in the second experimental year. Cytomixis differed among the four clones but was equally frequent in all stages of meiosis. The syncytia formed, most often consisted of 2-3 PMCs that were at the same phase of meiosis, and exhibited common cytoplasm and occasionally nuclear fusion. In vitro pollen germination and pollen tube length significantly differed between the clones. Most probably abnormalities during meiosis, regardless of the good results of pollen germination, influenced the reduced potential clones XI/3 and XIII/1.",
publisher = "Elsevier Gmbh, Munich",
journal = "Flora",
title = "Microsporogenesis and meiotic abnormalities in different 'Oblacinska' sour cherry (Prunus cerasus L.) clones",
pages = "34-25",
volume = "219",
doi = "10.1016/j.flora.2015.12.009"
}

Fotirić-Akšić, M., Cerović, R., Ercisli, S.,& Jensen, M.. (2016). Microsporogenesis and meiotic abnormalities in different 'Oblacinska' sour cherry (Prunus cerasus L.) clones. in Flora
Elsevier Gmbh, Munich., 219, 25-34.
https://doi.org/10.1016/j.flora.2015.12.009

Fotirić-Akšić M, Cerović R, Ercisli S, Jensen M. Microsporogenesis and meiotic abnormalities in different 'Oblacinska' sour cherry (Prunus cerasus L.) clones. in Flora. 2016;219:25-34.
doi:10.1016/j.flora.2015.12.009 .

Fotirić-Akšić, Milica, Cerović, Radosav, Ercisli, Sezai, Jensen, Martin, "Microsporogenesis and meiotic abnormalities in different 'Oblacinska' sour cherry (Prunus cerasus L.) clones" in Flora, 219 (2016):25-34,
https://doi.org/10.1016/j.flora.2015.12.009 . .