Results 1 to 10 of about 4,193 (178)

Characterization and Gene Expression of Vitellogenesis-Related Transcripts in the Hepatopancreas and Ovary of the Red Swamp Crayfish, Procambarus clarkii (Girard, 1852), during Reproductive Cycle

Diversity, 2021
The major component of the animal egg yolk is the lipoglycoprotein vitellin, derived from its precursor vitellogenin (VTG), which is produced species-specifically in decapod crustaceans in the hepatopancreas and/or in the ovary of reproductive females ...
Chiara Manfrin, Moshe Tom, Massimo Avian, Silvia Battistella, Alberto Pallavicini, Piero Giulio Giulianini   +5 more
doaj   +1 more source

Unravelling the changes during induced vitellogenesis in female European eel through RNA-Seq: What happens to the liver?

PLoS ONE, 2020
The life cycle of European eel (Anguilla anguilla), a catadromous species, is complex and enigmatic. In nature, during the silvering process prior to their long spawning migration, reproductive development is arrested, and they cease feeding.
Francesca Bertolini, Michelle Grace Pinto Jørgensen, Christiaan Henkel, Sylvie Dufour, Jonna Tomkiewicz   +4 more
doaj   +1 more source

Ultrastructural aspects of vitellogenesis in Archegozetes longisetosus Aoki, 1965 (Acari, Oribatida, Trhypochthoniidae)

Soil Organisms, 2010
We studied the process of vitellogenesis in the oribatid mite Archegozetes longisetosus using light and electron microscopy. Both vitellogenesis and the formation of the first egg shell occur within the meroi of the ovary, starting after detachment from
Paavo Bergmann, Michael Laumann, Michael Heethoff   +2 more
doaj  

The archaeal class Nitrososphaeria is a key component of the reproductive microbiome in sponges during gametogenesis

mBio
Sponge-associated microbes play fundamental roles in regulating their hosts’ physiology, yet their contribution to sexual reproduction has been largely overlooked.
Marta Turon, Vasiliki Koutsouveli, María Conejero, Sergi Taboada, Aida Verdes, José María Lorente-Sorolla, Cristina Díez-Vives, Ana Riesgo   +7 more
doaj   +1 more source

Characterization of a native whitefly vitellogenin gene cDNA and its expression pattern compared with two invasive whitefly cryptic species

Journal of Integrative Agriculture, 2016
The whitefly Bemisia tabaci is a species complex, of which two invasive species, called MEAM1 and MED whiteflies, have invaded many parts of the world in the past 30 years and replaced native whitefly populations in many regions of invasions including ...
Jian-yang GUO, Yu-ping DU, Fang-hao WAN, Gong-yin YE   +3 more
doaj   +1 more source

Transcriptomic Analysis of the Kuruma Prawn Marsupenaeus japonicus Reveals Possible Peripheral Regulation of the Ovary

Frontiers in Endocrinology, 2020
Crustacean reproduction has been hypothesized to be under complex endocrinological regulation by peptide hormones. To further improve our understanding of the mechanisms underlying this complex regulation, knowledge is needed regarding the hormones not ...
Naoaki Tsutsui, Naoaki Tsutsui, Yasuhisa Kobayashi, Yasuhisa Kobayashi, Kouichi Izumikawa, Tatsuya Sakamoto   +5 more
doaj   +1 more source

Reproductive timing and fecundity in the Neotropical lizard Enyalius perditus (Squamata: Leiosauridae)

Acta Herpetologica, 2017
Enyalius perditus is a semi-arboreal lizard species whose reproduction is poorly known. Here, we combine information obtained from preserved and live specimens to describe the reproductive timing (vitellogenesis, gravidity, and egg-laying) and fecundity (
Serena Migliore, Henrique Braz, André Barreto-Lima, Selma Almeida-Santos   +3 more
doaj   +1 more source

The dynamic landscape of gene regulation during Bombyx mori oogenesis

BMC Genomics, 2017
Background Oogenesis in the domestic silkworm (Bombyx mori) is a complex process involving previtellogenesis, vitellogenesis and choriogenesis. During this process, follicles show drastic morphological and physiological changes.
Qiang Zhang, Wei Sun, Bang-Yong Sun, Yang Xiao, Ze Zhang   +4 more
doaj   +1 more source

Dietary Supplementation With Icariin Affects Estrogen Synthesis, Vitellogenesis, and Oocyte Development in the Chinese Mitten Crab, Eriocheir sinensis

Frontiers in Marine Science, 2020
In Eriocheir sinensis aquaculture, crabs feeding on an artificial diet without steroid hormones available in ice-fresh fish or snails show delayed ovarian maturation and late listing.
Xiaochuan Zheng, Wenbin Liu, Jiadai Liu, Caiyan Zhang, Ling Zhang, Fan Gao, Dingdong Zhang, Cheng Chi   +7 more
doaj   +1 more source

The F-box protein FBXL-5 governs vitellogenesis and lipid homeostasis in C. elegans

Frontiers in Cell and Developmental Biology
The molecular mechanisms that govern the metabolic commitment to reproduction, which often occurs at the expense of somatic reserves, remain poorly understood.
Peter C. Breen, Kendall G. Kanakanui, Martin A. Newman, Robert H. Dowen, Robert H. Dowen, Robert H. Dowen   +5 more
doaj   +1 more source