2. Articole
Permanent URI for this collectionhttps://msuir.usm.md/handle/123456789/13419
Browse
2 results
Search Results
Item Temporal gene expression patterns during microsporogenesis in sunflower [Articol](Editura USM, 2025) Port, AngelaThe objective of this study was to characterize the transcriptional variation of a selected set of genes in fertile sunflower (Helianthus annuus) anthers by quantifying their expression levels using Ral-time PCR across four stages of microsporogenesis. The results reveal that over 90% of the analyzed genes exhibit dynamic or oscillatory expression patterns, reflecting stage-specific regulatory responses. A moderate increase in gene expression variability during the tetrad and microspore stages, compared to the earlier phases of microsporogenesis, such as pachytene and meiotic division, was observed. The prevalence of dynamic expression highlights complex transcriptional regulation required for maintaining physiological homeostasis during microsporogenesis. These results contribute to the functional validation of candidate genes and offer insights into the genetic and physiological mechanisms underlying male fertility in sunflower.Item Performanţa hibrizilor de floarea-soarelui în diverse condiţii de mediu ale Republicii Moldova(CEP USM, 2024-10-07) Duca, Maria; Port, Angela; Clapco, Steliana; Mutu, Ana; Burcovschi, IonThe rising frequency of suboptimal temperatures and early droughts hinder the genetic potential realization of sunflower hybrids, posing challenges in achieving stable harvest yields. It was analyzed the harvest of 21 hybrids grown in 5 localities of the Republic of Moldova in correlation with the annual amount of precipitation from 2015-2020. The variation of the yield according to the genotype of the studied hybrids and the impact of the conditions in the growing environment were highlighted.