Results 61 to 70 of about 6,984 (172)
Pigment Cell &Melanoma Research, Volume 39, Issue 4, July 2026.Distinguishing proliferative nodules from melanoma in congenital melanocytic nevi remains challenging. While aCGH, sWGS, and methylation sequencing show high concordance for broad CNAs, higher‐resolution methods detect additional focal alterations that can lead to discordant classifications.
Anton Karelin +12 more
wiley +1 more source
Coevolution of Haplo-Diploidy and Sex Determination in the Hymenoptera [PDF]
Evolution, 1981 The Hymenoptera (ants, bees, wasps and sawflies) have long been known for their haplo-diploid genetic system. As early as 1845 Dzierzon proposed for honeybees that males arise from unfertilized eggs, females from fertilized eggs. The same principle is now thought to operate in nearly all sexual hymenopterans, many other arthropods, and some rotifers ...
openaire +3 more sources
Progress and Challenges in Phylogenomics and Genomics of Lophotrochozoa/Spiralia
Zoologica Scripta, Volume 55, Issue 4, Page 521-544, July 2026.ABSTRACT Lophotrochozoa is one of the three major bilaterian groups comprising more than half of the bilaterian phyla. Lophotrochozoa includes among others Mollusca, Annelida, Platyhelminthes and Rotifera. Despite representing such a large proportion of animal diversity, they are historically understudied and genomic resources have been scarce. However,
Torsten H. Struck
wiley +1 more source
Genetical evidence for diploidy in Phytophthora
Genetical Research, 1971 SUMMARYA spontaneous mutant of Phytophthora drechsleri, resistant to p-fluorophenyl-alanine and two induced mutants resistant to chloramphenicol have been selected and analysed. The pattern of inheritance of the mutant phenotypes was identical and conformed to that expected in a diploid organism.
David S. Shaw, Ikram A. Khaki
openaire +1 more source
Rapid sexual reproduction intensifies blooms of a mixotrophic dinoflagellate
Limnology and Oceanography, Volume 71, Issue 6, June 2026.Abstract Sexual reproduction is fundamental to the ecology and evolution of eukaryotes, yet its dynamics in microbial eukaryotes are often cryptic. Dinophysis are specialist mixotrophs that must balance prey capture, cell division, and sexual recombination during blooms, but relatively little is known about the occurrence and role of sex in their ...
Serena Sung‐Clarke +5 more
wiley +1 more source
A New Species of Arthropteris From Samoa
New Zealand Journal of Botany, Volume 64, Issue 2, June 2026.A new species, Arthropteris samoensis (Arthropteridaceae), recorded from the Samoan islands of Upolu and Savai‘i, is described and illustrated. In Samoa, the new species is distinguished from Arthropteris palisotii s.l. by its smaller stature and more delicate texture (laminae mostly < 3 cm wide vs.
Susan Fawcett +4 more
wiley +1 more source
Chromosome counts of some Zingiberaceous species from Thailand [PDF]
Songklanakarin Journal of Science and Technology (SJST), 2002 The data on chromosome numbers of 22 species belonging to 10 genera of Zingiberaceae distributed in Thailand were investigated. The somatic numbers range from 20 to 48 showing diploidy and polyploidy.
Ladda Eksomtramage +3 more
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Introgression and Divergence in a Young Species Group
Molecular Ecology, Volume 35, Issue 12, June 2026.ABSTRACT The process of speciation concerns often multiple diverging and interacting taxa, not only taxon pairs. Understanding the evolution of species' diversity and their persistence therefore requires insight into how gene flow and evolution of reproductive isolation shape groups of closely related species.
I. Satokangas +6 more
wiley +1 more source
Nuclear DNA Content of Fine Needle Aspirates of Invasive Ductal Carcinomas of the Breast
Analytical Cellular Pathology, 1997 Patients with aggressive breast cancers benefit from chemotherapy prior to surgery. If the biology of the breast cancers were better characterised pre‐operatively, more patients at risk could be offered chemotherapy.
Sudip Sarker +3 more
doaj +1 more source
Gayana: Botanica, 2006 Mitotic chromosome counts in Chilean pteridophytes confirm the diploidy described for Equisetum L. (2n = 216) and Blechnum L. (2n = 66), as well as the tetraploidy of Asplenium L. (2n = 144). Megalastrum spectabile (Kaulf.) A.R.Sm.
Pedro Jara-Seguel +2 more
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