Results 31 to 40 of about 921 (179)

Evaluation of Growth and Immunological Indices of Allfemale Caspian salmon Salmo trutta caspius Induced by Gamma Irradiation

open access: yesBrazilian Archives of Biology and Technology, 2022
20 pieces of all-female (produces by using Gynogenesis process via gamma irradiation) Caspian salmon (Salmo trutta caspius) with dosage of 450, 600, 750, 900 and 1050 Gy by gamma irradiation (Co60) with average weight of 2.31 ± 0.22 in a randomized ...
Gholamreza Shahhosseini
doaj   +1 more source

Gene Expression and Antioxidant Characteristics of Rainbow Trout (Oncorhynchus mykiss) Eggs Used for Meiotic Gynogenesis

open access: yesFishes
Gynogenesis is a reproductive mode where offspring inherit exclusively maternal chromosomes. Gynogenetic development in fish may be induced intentionally by activating eggs with the UV-irradiated, inactive spermatozoa.
Konrad Ocalewicz   +6 more
doaj   +1 more source

Transcriptomic Analysis Reveals Functional Interaction of mRNA–lncRNA–miRNA in Steroidogenesis and Spermatogenesis of Gynogenetic Japanese Flounder (Paralichthys olivaceus)

open access: yesBiology, 2022
Teleost fishes exhibit extraordinary diversity, plasticity and adaptability with their sex determination and sexual development, and there is growing evidence that non-coding RNAs (ncRNAs) are emerging as critical regulators of reproduction.
Jie Cheng   +5 more
doaj   +1 more source

Studies on Gynogenesis Induction in Cassava (Manihot esculenta Crantz) Unpollinated Ovule Culture

open access: yesFrontiers in Plant Science, 2020
Cassava (Manihot esculenta Crantz) is an important crop for subsistence farming in tropical and subtropical regions. There is a need to increase the rate of genetic gain to develop varieties adapted to new environmental conditions affected by climate ...
Zaida Lentini   +4 more
doaj   +1 more source

Repeated Independent Formation of Triploid Lineages Contributes to Clonal Diversity in Heteronotia binoei Parthenogens

open access: yesMolecular Ecology, Volume 35, Issue 2, January 2026.
ABSTRACT Parthenogenesis, or all‐female clonal reproduction, is rare among vertebrates. This is often attributed to the selective disadvantages of assumed reduction of genetic diversity in the absence of sex. However, parthenogenetic vertebrates have highly complex evolutionary histories, with most arising through hybridisation and many being polyploid.
Kate E. O'Hara   +4 more
wiley   +1 more source

Obtaining doubled haploids of Cucurbita pepo L.

open access: yesОвощи России, 2021
Doubled haploids have been widely used worldwide in breeding programs and fundamental research as valuable homozygous material for about 100 years. The species Cucurbita pepo L.
E. A. Domblides   +2 more
doaj   +1 more source

Macro‐Hybrid and Micro‐Hybrid of Fish

open access: yesReviews in Aquaculture, Volume 18, Issue 1, January 2026.
ABSTRACT This study reviews the progress in fish breeding, focusing on distant hybridization and gynogenesis, and introduces the theory of macro‐hybrid and micro‐hybrid. The macro‐hybrid refers to the allo‐progeny derived from distant hybridization, including the allo‐progenies.
Qizhi Liu   +16 more
wiley   +1 more source

Evaluation of genetic stability of sugar beet (Beta vulgaris L.) plants obtained from unfertilized ovules using RAPD markers [PDF]

open access: yesJournal of Central European Agriculture, 2019
In order to improve the methods of embryo regeneration applied so far in in vitro cultures, a two-phased, innovative method was used. It involved using a liquid and solid media.
Magdalena Tomaszewska-Sowa   +1 more
doaj   +1 more source

Sexual conflict as a constraint on asexual reproduction: an empirical review

open access: yesBiological Reviews, Volume 100, Issue 6, Page 2681-2706, December 2025.
ABSTRACT Theory predicts that facultatively asexual animals, which can leverage the advantages of both sexual and asexual reproduction, should outcompete obligately sexual and obligately asexual animals. Yet, paradoxically, obligate sexual reproduction predominates in many animal lineages, while the most flexible form of facultative asexuality (i.e ...
Daniela Wilner   +2 more
wiley   +1 more source

Twenty years of cucurbit breeding research at the World Vegetable Center

open access: yesCrop Science, Volume 65, Issue 6, November/December 2025.
Abstract The contribution of cucurbit crops to global food and nutrition security is immense. They are economically and nutritionally important to smallholder farmers in Asia, who account for 81% of global cucurbit production. World Vegetable Center (WorldVeg) has been focused for 20 years on four species: bitter gourd (Momordica charantia), ridge ...
Narinder Pal Singh Dhillon
wiley   +1 more source

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