<abstract xmlns="http://www.w3.org/1999/xhtml"><p> Morpho-phenological and meiotic studies were performed in twelve cultivars of Matthiola incana. All of the cultivars were diploid (2n = 2x = 14) with basic chromosome number x = 7. A number of aneuploid PMCs (n + 1) were observed in plants of two cultivars, named ‘Nobel’ (NB) and ‘Goddess’ (GD), at the diakinesis stage. Trisomic individuals with the frequency of 20% and 5% and (2n + 1 = 15) somatic chromosomes were observed in seeds obtained from single-flowered plants of the cultivars NB and GD, respectively. An additional chromosome was mostly observed in the form of a chain trivalent or a rod univalent. Various meiotic abnormalities were found in all the cultivars to different degrees. In these cultivars, the percentage of cells with meiotic abnormalities was higher in anaphase I. Cytomixis was observed for the first time in Matthiola incana. ANOVA tests revealed significant differences in morpho-phenological characteristics. ‘Nobel’ differs from the others in all of the vegetative features investigated in this study. All the cultivars studied except ‘Nobel’ and ‘Pacific Crimson’ possessed high pollen fertility (> 90%). Five groups of the cultivars based on morpho-phenological features disagree with the clustering of cultivars based on meiotic traits. It is thought that the various morpho-phenological features observed among the cultivars could be due to their different genetic background and not only to meiotic anomalies.</p></abstract>

Morpho-phenological and meiotic studies were performed in twelve cultivars of Matthiola incana. All of the cultivars were diploid (2n = 2x = 14) with basic chromosome number x = 7. A number of aneuploid PMCs (n + 1) were observed in plants of two cultivars, named ‘Nobel’ (NB) and ‘Goddess’ (GD), at the diakinesis stage. Trisomic individuals with the frequency of 20% and 5% and (2n + 1 = 15) somatic chromosomes were observed in seeds obtained from single-flowered plants of the cultivars NB and GD, respectively. An additional chromosome was mostly observed in the form of a chain trivalent or a rod univalent. Various meiotic abnormalities were found in all the cultivars to different degrees. In these cultivars, the percentage of cells with meiotic abnormalities was higher in anaphase I. Cytomixis was observed for the first time in Matthiola incana. ANOVA tests revealed significant differences in morpho-phenological characteristics. ‘Nobel’ differs from the others in all of the vegetative features investigated in this study. All the cultivars studied except ‘Nobel’ and ‘Pacific Crimson’ possessed high pollen fertility (> 90%). Five groups of the cultivars based on morpho-phenological features disagree with the clustering of cultivars based on meiotic traits. It is thought that the various morpho-phenological features observed among the cultivars could be due to their different genetic background and not only to meiotic anomalies.

Meiotic behaviour and morpho-phenological variation in cut stock (<italic>Matthiola incana</italic> L.) flower

Folia Horticulturae

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Meiotic behaviour and morpho-phenological variation in cut stock ( L.) flower

Morpho-phenological and meiotic studies were performed in twelve cultivars of Matthiola incana. All of the cultivars were diploid (2n = 2x = 14) with basic...

Meiotic behaviour and morpho-phenological variation in cut stock (Matthiola incana L.) flower

Article Category: Original Article

Publié en ligne: 28 juin 2017

Pages: 51 - 61

Reçu: 09 juil. 2016

Accepté: 16 mars 2017

DOI: https://doi.org/10.1515/fhort-2017-0006

Mots clés
aneuploidy, chiasma frequency, chromosome pairing, pollen fertility, vegetative and floral traits

© by Mostafa Arab

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Meiotic behaviour and morpho-phenological variation in cut stock (Matthiola incana L.) flower

Article Category: Original Article

Publié en ligne: 28 juin 2017

Pages: 51 - 61

Reçu: 09 juil. 2016

Accepté: 16 mars 2017

DOI: https://doi.org/10.1515/fhort-2017-0006

Mots clésaneuploidy, chiasma frequency, chromosome pairing, pollen fertility, vegetative and floral traits

© by Mostafa Arab

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Mots clés
aneuploidy, chiasma frequency, chromosome pairing, pollen fertility, vegetative and floral traits