Results 51 to 60 of about 6,845 (132)
A century of theories of balancing selection
Biological Reviews, Volume 101, Issue 2, Page 804-825, April 2026.ABSTRACT Traits that affect organismal fitness are often highly genetically variable. This genetic variation is vital for populations to adapt to their environments, but it is also surprising given that nature – after all – ‘selects’ the best genotypes at the expense of those that fall short.
Filip Ruzicka +10 more
wiley +1 more source
Journal of Phycology, Volume 62, Issue 2, Page 427-453, April 2026.Abstract The invasion of the red macroalga Gracilaria vermiculophylla provided an opportunity to investigate the influence of benthic habitats on the reproductive mode, population structure, and colonization dynamics in haploid‐diploid life cycles.
Alexis P. Oetterer +3 more
wiley +1 more source
Potential Drivers of Successful Biocontrol: A Perspective on Parasitoids
New Zealand Journal of Zoology, Volume 53, Issue 1, March 2026.Parasitoids are central to classical biological control, yet predicting their long‐term effectiveness post release remains challenging. In Aotearoa New Zealand, three Microctonus (Hymenoptera: Braconidae) species have been used against pest weevils, but key aspects of their biology remain poorly understood.
Meeran Hussain +3 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
doaj
Autopolyploidization‐Induced Chromatin Remodeling Regulates Leaf Size Variation in Brassica rapa
Advanced Science, Volume 13, Issue 9, 13 February 2026.This study demonstrates that monoploid, diploid, and autotetraploid Brassica rapa lines derived from the same genome exhibit distinct leaf morphology. Ploidy changes remodel chromatin accessibility and histone modifications to regulate gene expression, while key transcription factors BrGRF13 and BrARF11 control leaf size and polarity, driving ...
Haoyuan Dong +17 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
Plastic Germination, Temporal Niche Partitioning and Emergent Assortative Mating in Annual Plants
Ecology Letters, Volume 29, Issue 2, February 2026.Temporal environmental fluctuations can drive genetic diversity and species coexistence via the storage effect. Using eco‐evolutionary models of annual plants, we show that adaptive plasticity in seed germination readily evolves and promotes genetic diversification by facilitating temporal niche partitioning, and in sexual populations can initiate ...
Max Schmid +3 more
wiley +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
doaj
Structure of 5S rDNA sequence of the gibel carp (Carassius gibelio) with 2n=100 chromosomes
Frontiers in Marine Science, 2015 In vertebrate, the 5S ribosomal DNA (rDNA) consists of a conserved coding (transcriptional) unit of 120 bp (5S), which is separated from the next unit by a nontranscribed spacer (NTS). The coding sequence and the NTS together form a repeat unit which can
Lech Kirtiklis
doaj +1 more source
Diploid Male Production of Two Amazonian Melipona Bees (Hymenoptera: Apidae)
Psyche: A Journal of Entomology, 2012 The diploid male has already been recorded for Melipona Illger, and herein, in Melipona seminigra merrillae Cockerell and Melipona interrupta manaosensis Schwarz.
Izaura Bezerra Francini +2 more
doaj +1 more source