Results 21 to 30 of about 225 (136)

Reproductive Mode and Conflict Shape the Evolution of Male Attributes and Rate of Speciation in the Fish Family Poeciliidae

Frontiers in Ecology and Evolution, 2021
Sexual conflict is caused by differences between the sexes in how fitness is maximized. These differences are shaped by the discrepancy in the investment in gametes, how mates are chosen and how embryos and young are provided for.
David N. Reznick, Joseph Travis, Bart J. A. Pollux, Andrew I. Furness   +3 more
doaj   +1 more source

On a viviparous ephemera [PDF]

Annals and Magazine of Natural History, 1896
n ...
openaire   +1 more source

An overview of sex and reproductive immunity from an evolutionary/anthropological perspective

Immunological Medicine, 2021
Mammalian pregnancy is a curious life phenomenon. Immunologically, the mechanism of pregnancy is difficult to explain because it involves the coexistence of an external foreign body (the embryo) and the host (the mother) for a period of time.
Yoshihiko Araki, Hiroshi Yoshitake, Kenji Yamatoya, Hiroshi Fujiwara   +3 more
doaj   +1 more source

Unraveling Metabolite Provisioning to Offspring Through Parental Fluids: A Case Study of the Brazilian Guitarfish, Pseudobatos horkelii

Frontiers in Physiology, 2022
Elasmobranchs have a very distinct metabolism, and many aspects related to the energetic dynamics of these animals remain poorly investigated. The reproductive period is particularly vulnerable for viviparous species, as part of the energy reserves of ...
Natascha Wosnick, Renata Daldin Leite, Eloísa Pinheiro Giareta, Danny Morick, Danny Morick, Danny Morick, Rachel Ann Hauser-Davis   +6 more
doaj   +1 more source

Genetic control of viviparity in common bean

Scientia Agricola
: In common bean (Phaseolus vulgaris) harvesting is carried out in the field. It is therefore necessary that cultivars be tolerant to viviparity, i.e., germination of grains still in the pods.
Laís Andrade Pereira, Magno Antonio Patto Ramalho, Ângela de Fátima Barbosa Abreu, Scheila Roberta Guilherme   +3 more
doaj   +1 more source

Embryos, cancers, and parasites: Potential applications to the study of reproductive biology in view of their similarity as biological phenomena

Reproductive Medicine and Biology, 2022
Background At present, there are so many living things on the earth. Most of these organisms have a reproductive strategy called sexual reproduction.
Yoshihiko Araki
doaj   +1 more source

Loss, persistence and reversal of phenotypic traits

Biological Reviews, EarlyView.
ABSTRACT The irreversibility of complex trait loss has long been a tenet of evolutionary biology. However, this idea is increasingly at odds with the numerous documented exceptions across the Tree of Life. We synthesise this growing body of evidence across a diverse array of taxa and traits, exploring the evolutionary conditions that enable ...
Giobbe Forni, Giuseppe Fusco, Filippo Nicolini, Heather Bruce, Andrea Luchetti   +4 more
wiley   +1 more source

First Report of Viviparity in Seeds of the Physically Dormant Species Hymenaea martiana (Fabaceae)

Seeds
Viviparity is rarely reported in species with seed physical dormancy. This is because physical dormancy, common in tropical trees, results from the impermeability of the seed tegument to water and regulates the timing of germination.
Joyce Naiara da Silva, Guilherme Vinícius Gonçalves de Pádua, Caroline Marques Rodrigues, Eduardo Luã Fernandes da Silva, Aline das Graças Souza, Edna Ursulino Alves   +5 more
doaj   +1 more source

Nothing in Evolution Makes Sense Except in the Light of Genomics: Read–Write Genome Evolution as an Active Biological Process

Biology, 2016
The 21st century genomics-based analysis of evolutionary variation reveals a number of novel features impossible to predict when Dobzhansky and other evolutionary biologists formulated the neo-Darwinian Modern Synthesis in the middle of the last century.
James A. Shapiro
doaj   +1 more source

Adaptive Immunity in Marsupials

Journal of Experimental Zoology Part A: Ecological and Integrative Physiology, EarlyView.
Comparison of the marsupial and eutherian adaptive immune systems. ABSTRACT Marsupials diverged from eutherian mammals 125–160 million years ago. Although evolutionarily distinct, both groups of mammals can produce complex adaptive immune responses to antigens with several key differences.
Cassandra L. Jol, Hayley J. Stannard, Julie M. Old   +2 more
wiley   +1 more source