Pollen morphology and variability of caprifig (Ficus carica var. caprificus) genetic resources in Turkey using multivariate analysis
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Date
2021
Journal Title
Journal ISSN
Volume Title
Publisher
Elsevier
Access Rights
info:eu-repo/semantics/closedAccess
Abstract
This research was carried out to determine pollen morphological characteristics of caprifig genetic resources known as gene center Anatolia. In this study, pollens from 24 individuals, including 20 caprifig genotypes sampled from the Adana, Hatay, Kahramanmaras, Mersin, and Osmaniye provinces in the eastern Mediterranean region, and four standard cultivars from Aydin in the Aegean region of Turkey were collected. Pollen size and shape, exine thickness, exine tissue, polar and equatorial views, numbers of porates and width, and colpus length and width were measured by using light microscopy (LM) and scanning electron microscopy (SEM). Polar length and equatorial diameter of pollens ranged from 9.99 to 12.60 mu m and 8.52 to 11.90 mu m, respectively. In 13 genotypes, the pollen shape was prolate-spheroidal, while in the others, it was subprolate. The mean number of porates was 1.92 to 2.56, with the double porate being the most common. All studied caprifigs had scabrate and psilate exine ornamentation. The highest abnormal pollen ratio was found in 'Ak.Ilek' (34.10%), whereas it was lowest in the Osmaniye10 (1.28%). According to the principal component analysis, polar length, equatorial diameter, colpus width, pollen shape, number of porates, porate width, exine thickness, and abnormal pollen ratio were the most important characteristics in the differentiation of caprifig genetic resources. These results showed that pollen morphology can be used to identify caprifigs, select caprifigs for caprification, and determine the paternal individuals for edible fig-breeding programs.
Description
Keywords
Caprifig, Pollen diversity, Abnormal pollen ratio, Principal components
Journal or Series
Scientia Horticulturae
WoS Q Value
Q1
Scopus Q Value
Q1
Volume
287
