Results 231 to 240 of about 1,124,248 (284)

Decreasing Sociality With Body Size in All‐Male Groups of Sperm Whales (Physeter macrocephalus)

open access: yesMarine Mammal Science, Volume 42, Issue 4, October 2026.
ABSTRACT The costs and benefits of group living can influence animal group size and social relationships, and these balance points may shift as animals mature. Young male sperm whales (Physeter macrocephalus) appear to form stable all‐male groups unrelated to direct defense of females or territories, but quantitative data on how sociality changes with ...
Hayao Kobayashi   +2 more
wiley   +1 more source

The cold case of state transition 7 (stt7) mutants of Chlamydomonas reinhardtii, solved by whole‐genome sequencing

open access: yesNew Phytologist, Volume 252, Issue 1, Page 145-162, October 2026.
Long‐read whole‐genome sequencing revealed extensive chromosomal rearrangements and aneuploidy in a widely used Chlamydomonas reinhardtii stt7‐1 mutant. The STT7 gene (shown in red) was found to be split between two rearranged chromosomes, providing a molecular explanation for the long‐standing failure of this mutant in genetic crosses.
Sandrine Bujaldon   +3 more
wiley   +1 more source

TipQuant: a robust algorithm for quantitative analysis of spatiotemporally dynamic activities in tip‐growing cells

open access: yesNew Phytologist, Volume 252, Issue 2, Page 926-935, October 2026.
Tip Quantification enables quantitative analyses over versatile selections of regions of interest. Summary Cell polarity and tip growth rely on the dynamic spatial organization of signaling and structural components. Quantitative characterization of these spatiotemporal dynamics is critical for understanding polarized cell growth, yet manual ...
Jingzhe Guo   +7 more
wiley   +1 more source

Cytochrome P450 enzymes in the phenylpropanoid pathway: CYP73 and CYP98 candidate genes in Chara braunii, Anthoceros agrestis, Marchantia polymorpha and Physcomitrium patens

open access: yesThe Plant Journal, Volume 128, Issue 1, October 2026.
SUMMARY CYP73 and CYP98 are two cytochrome P450 monooxygenase families present in bryophytes and tracheophytes, and they play key roles in the formation of phenolic compounds containing a caffeic acid moiety and more complex phenolic compounds. CYP73 encodes the second enzyme in the core phenylpropanoid pathway and is the first enzyme family in this ...
Christoph E. G. Aggarwal‐Kentrath   +1 more
wiley   +1 more source

Humanin ameliorates diabetes‐induced testicular damage in a streptozotocin‐induced mouse model

open access: yesExperimental Physiology, Volume 111, Issue 10, Page 4498-4506, 1 October 2026.
Abstract Diabetes mellitus is a major metabolic disorder closely associated with oxidative stress and male reproductive dysfunction. Humanin, a mitochondria‐derived peptide, has been reported to exert cytoprotective, anti‐apoptotic and antioxidant effects in various disease models; however, its role in diabetes‐induced testicular damage remains unclear.
Munevver Gizem Hekim   +2 more
wiley   +1 more source

Peer review of the pesticide risk assessment of the active substance Trichoderma afroharzianum (formerly harzianum) T‐22

open access: yesEFSA Journal, Volume 24, Issue 10, October 2026.
Abstract The conclusions of the European Food Safety Authority (EFSA) following the peer review of the initial risk assessments carried out by the competent authorities of the rapporteur Member State, Sweden, and co‐rapporteur Member State, Netherlands, for the pesticide active substance Trichoderma afroharzianum (formerly harzianum) T‐22 are reported.
European Food Safety Authority (EFSA)   +47 more
wiley   +1 more source

Male Alloparental Care in Franciscana Dolphins (Pontoporia blainvillei)

open access: yes
Marine Mammal Science, Volume 42, Issue 4, October 2026.
Marcos César de Oliveira Santos   +6 more
wiley   +1 more source

Sexual selection and sperm competition in reptiles

open access: yes, 1998
Madsen, T, Olsson, Mats,
core  

Psychological and Physiological Adaptations to Sperm Competition in Humans [PDF]

open access: yesReview of General Psychology, 2005
Postcopulatory competition between males, in the form of sperm competition, is a widespread phenomenon in many animal species. The extent to which sperm competition has been an important selective pressure during human evolution remains controversial ...
Todd K. Shackelford, Nicholas Pound
exaly   +8 more sources

Sperm competition and ejaculate economics

open access: yesBiological Reviews, 2010
Sperm competition was identified in 1970 as a pervasive selective force in post‐copulatory sexual selection that occurs when the ejaculates of different males compete to fertilise a given set of ova. Since then, sperm competition has been much studied both empirically and theoretically.
Tommaso Pizzari, Geoff Parker
exaly   +3 more sources

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