Results 11 to 20 of about 225 (136)

Viviparous mothers impose stronger glucocorticoid‐mediated maternal stress effects on their offspring than oviparous mothers

Ecology and Evolution, 2021
Maternal stress during gestation has the potential to affect offspring development via changes in maternal physiology, such as increases in circulating levels of glucocorticoid hormones that are typical after exposure to a stressor.
Kirsty J. MacLeod, Geoffrey M. While, Tobias Uller   +2 more
doaj   +1 more source

High Degree of Multiple Paternity and Reproductive Skew in the Highly Fecund Live-Bearing Fish Poecilia gillii (Family Poeciliidae)

Frontiers in Ecology and Evolution, 2020
Multiple paternity is a common phenomenon within the live-bearing fish family Poeciliidae. There is a great variety in brood sizes of at least two orders-of-magnitude across the family.
Myrthe L. Dekker, Andres Hagmayer, Karen M. Leon-Kloosterziel, Andrew I. Furness, Bart J. A. Pollux   +4 more
doaj   +1 more source

A Viviparous Pumpkin [PDF]

Science, 1884
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openaire   +3 more sources

The developmental and structural uniqueness of the embryo of the extremophile viviparous nematode, Tokorhabditis tufae

Frontiers in Physiology, 2023
Viviparity, a reproductive form that supplies nutrients to the embryo during gestation, has repeatedly and independently occurred in multiple lineages of animals.
Tatsuya Yamashita, Taisuke Ekino, Natsumi Kanzaki, Ryoji Shinya   +3 more
doaj   +1 more source

The complete mitochondrial genome of Eremias yarkandensis (Reptilia, Squamata, Lacertidae) from Kyrgyzstan

Mitochondrial DNA. Part B. Resources, 2022
The Yarkand racerunner, Eremias yarkandensis Blandford, 1875, is only distributed in China and Kyrgyzstan. Its complete mitogenome was determined by next-generation sequencing for the first time.
Song Wang, Jinlong Liu, Marina A. Chirikova, Bin Zhang, Xianguang Guo   +4 more
doaj   +1 more source

The complete mitochondrial genome of Eremias dzungarica (Reptilia, Squamata, Lacertidae) from the Junggar Basin in Northwest China

Mitochondrial DNA. Part B. Resources, 2021
The complete mitochondrial genome (mitogenome) of Eremias dzungarica from the Junggar Basin in Northwest China was determined for the first time by next-generation sequencing.
Song Wang, Jinlong Liu, Bin Zhang, Xianguang Guo   +3 more
doaj   +1 more source

Embryos of the viviparous dermapteran, Arixenia esau develop sequentially in two compartments: terminal ovarian follicles and the uterus.

PLoS ONE, 2013
Three main reproductive strategies have been described among insects: most common oviparity, ovoviviparity and viviparity. In the latter strategy, the embryonic development takes place within the body of the mother which provides gas exchange and ...
Waclaw Tworzydlo, Elzbieta Kisiel, Szczepan M Bilinski   +2 more
doaj   +1 more source

Harvest Season and Morphological Variation of Canistel (Pouteria campechiana) Fruit and Leaves Collected in Different Zones of Mexico

Horticulturae, 2023
Canistel (Pouteria campechiana (Kunth) Baehni; yellow sapote, canistel) is an edible fruit that is native to Mexico; the tree is used as an ornamental and medicinal plant.
Karen M. Granados-Vega, Silvia Evangelista-Lozano, Sandra L. Escobar-Arellano, Tomás Rodríguez-García, José F. Pérez-Bárcena, Juan G. Cruz-Castillo   +5 more
doaj   +1 more source

Anatomy of the female reproductive system and sperm storage of the viviparous caecilian Typhlonectes natans (Gymnophiona: Typhlonectidae)

Acta Biologica, 2018
Here, we describe the anatomy of the female reproductive system of the aquatic, viviparous caecilian Typhlonectes natans. We conducted our research on two adult females using light microscopy and reflected our results with the available literature data ...
Jakub Dymek, Anna Dymek, Artur Osikowski
doaj   +1 more source

Effects of maternal basking and food quantity during gestation provide evidence for the selective advantage of matrotrophy in a viviparous lizard. [PDF]

PLoS ONE, 2012
The evolution of matrotrophy (i.e., direct supply of nutrients by the mother during gestation) may be associated with high maternal energy availability during gestation. However, we lack knowledge about the selective advantages of matrotrophic viviparity
Keisuke Itonaga, Susan M Jones, Erik Wapstra   +2 more
doaj   +1 more source