Now showing items 1-10 of 313
Differentiation of haploid and diploid fertilities in Gracilaria chilensis affect ploidy ratio
Abstract Background Algal isomorphic biphasic life cycles alternate between free-living diploid (tetrasporophytes) and haploid (dioicious gametophytes) phases and the hypotheses ...
Short-term storage of the oocytes affects the ploidy status in the yellowtail tetra Astyanax altiparanae
(Cambridge Univ Press, 2018-02-01)
In fish, many factors can affect reproduction during in vitro fertilization, therefore determination of the factors that affect affecting gamete quality is needed. However, few studies have focused on gamete quality and ...
Complex Geographical Distribution of Ploidy Levels in Polylepis australis (Rosaceae), an Endemic Tree Line Species in Argentina
(Univ Chicago Press, 2014-09)
Premise of research. The geographical distribution of ploidy levels provides insights into evolutionary pathways. For the subtropical tree line species Polylepis australis (Rosaceae), we tested the hypotheses that (1a) ...
DNA ploidy analysis in salivary gland tumours by image cytometry
(Blackwell PublishingOxfordInglaterra, 2007)
The effect of ploidy on the fatty acid profile during the reproductive cycle of female rainbow trout (Oncorhynchus mykiss)
Rainbow trout Oncorhynchus mykiss triploids are regularly produced in fish farms to improve growth because the triploid females do not develop ovaries during the reproductive cycle. In this study, the tissue fatty acid ...
DUCTAL CARCINOMA IN-SITU OF THE BREAST - HISTOLOGIC CATEGORIZATION AND ITS RELATIONSHIP TO PLOIDY AND IMMUNOHISTOCHEMICAL EXPRESSION OF HORMONE RECEPTORS, P53, AND C-ERBB-2 PROTEIN
Background. Ductal carcinoma in situ (DCIS) of the breast has been diagnosed increasingly since the advent of mammography. However, the natural history of these lesions remains uncertain. Ductal carcinoma in situ of the ...
Geographic variation in festuca rubra L. ploidy levels and systemic fungal endophyte frequencies
(Public Library of Science, 2016-11)
Polyploidy and symbiotic Epichloë fungal endophytes are common and heritable characteristics that can facilitate environmental range expansion in grasses. Here we examined geographic patterns of polyploidy and the frequency ...