Results 41 to 50 of about 24,129 (164)

A Novel Circular RNA circSPEF2 Regulates Testis Development in Crucian Carp

open access: yesBiology
Circular RNAs (circRNAs) exhibit significant sex- and development stage-specific expression patterns in the gonads of various fish species, yet their functions and regulatory mechanisms in male reproductive development remain largely unexplored in ...
Fang Gou   +5 more
doaj   +1 more source

Polyploid spermatozoa in Pityogenes chalcographus and Ips typographus (Coleoptera: Scolytidae)

open access: yesEuropean Journal of Entomology, 2004
Abnormal spermatogenesis in Pityogenes chalcographus (L.) and Ips typographus (L.) results in oversized spermatozoa in all the populations investigated. They can be identified by light microscopy and classified as 2n up to 16n polyploid.
Erwin FÜHRER
doaj   +1 more source

Analysis of Fish Diversity and Invasive Species in the Cuijiang River Based on Environmental DNA Metabarcoding

open access: yesBiology
eDNA metabarcoding provides distinct benefits—including non-invasiveness, cost-effectiveness, and high detection sensitivity—that make it particularly appropriate for aquatic ecosystem conservation and fisheries management.
Haiqi Li   +13 more
doaj   +1 more source

Lotus-fish co-culture reshapes pond microbiota and improves ecological stability relative to fish monoculture

open access: yesFrontiers in Microbiology
IntroductionThe lotus-fish co-culture ponds (LP) is a widely applied integrated aquaculture system in China. However, research on the micro-ecology of aquaculture in lotus ponds is still insufficient.
Shandong Chen   +14 more
doaj   +1 more source

Molecular Phylogenetics of Seven Cyprinidae Distant Hybrid Lineages: Genetic Variation, 2nNCRC Convergent Evolution, and Germplasm Implications

open access: yesBiology
Distant hybridization is key to trait innovation and speciation, with Cyprinidae hybrid phylogeny helping to clarify diversification mechanisms. Yet, a major gap persists in Cyprinidae studies: the stabilization mechanisms of interspecific distant hybrid
Ziyi Wang   +5 more
doaj   +1 more source

Mapping a Novel Black Spot Resistance Locus in the Climbing Rose Brite Eyes™ (‘RADbrite’)

open access: yesFrontiers in Plant Science, 2018
Rose black spot, caused by Diplocarpon rosae, is one of the most devastating foliar diseases of cultivated roses (Rosa spp.). The globally distributed pathogen has the potential to cause large economic losses in the outdoor cultivation of roses ...
Jason D. Zurn   +5 more
doaj   +1 more source

Polymorphisms and Expression Characteristics of the ZSWIM7 Gene Are Associated with the Fertility of Male Allotetraploid of Red Crucian Carp × Common Carp

open access: yesAnimals
Allotetraploid fish produced by distant hybridization are valuable germplasm for the mass production of sterile triploids. The allotetraploid crucian–carp hybrid (4nAT, 4n = 200) is derived from the intergeneric cross between a female red crucian carp ...
Tao Dai   +5 more
doaj   +1 more source

Polyploid Gene Expression and Regulation in Polysomic Polyploids

open access: yesAmerican Journal of Plant Sciences, 2019
Polyploidization is one of the most crucial pathways in introducing speciation and broadening biodiversity, especially in the Plant Kingdom. Although the majority of studies have focused only on allopolyploid or disomic polyploids, polysomic polyploid species have occurred frequently in higher plants.
openaire   +2 more sources

Multi-Omics Integration Reveals Synergistic Metabolic Rewiring Underpinning Growth Acceleration in a Hybrid Pompano “Chenhai No. 1”

open access: yesAnimals
The hybrid golden pompano “Chenhai No. 1” (CH), generated through distant hybridization [(♀ Trachinotus ovatus × ♂ T. blochii) × ♂ T. ovatus], exhibits significantly enhanced growth performance compared to its parental T. ovatus (TO).
Hongxuan Liang   +10 more
doaj   +1 more source

Integrated physiological and molecular insights into grass carp adaptation to eutrophic environments

open access: yesReproduction and Breeding
In recent years, freshwater fisheries have experienced rapid development worldwide. However, poor water management practices associated with intensive, high-density aquaculture systems may accelerate eutrophication within aquaculture systems—posing a ...
Fangyuan Peng   +10 more
doaj   +1 more source

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