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Evolutionary mechanisms and practical significance of reproductive success and clonal diversity in unisexual vertebrate polyploids
Unisexual reproduction is generally relevant to polyploidy, and unisexual vertebrates are often considered an evolutionary “dead end” due to the...
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Diversity and composition of mixed-ploidy unisexual salamander assemblages reflect the key influence of host species
Understanding processes that govern and sustain biological diversity is a central goal of community ecology. Unisexual complexes, where reproduction...
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Achiasmatic meiosis in the unisexual Amazon molly, Poecilia formosa
Unisexual reproduction, which generates clonal offspring, is an alternative strategy to sexual breeding and occurs even in vertebrates. A wide range...
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Reproduction-associated pathways in females of gibel carp (Carassius gibelio) shed light on the molecular mechanisms of the coexistence of asexual and sexual reproduction
Gibel carp ( Carassius gibelio ) is a cyprinid fish that originated in eastern Eurasia and is considered as invasive in European freshwater ecosystems....
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Unraveling the development behind unisexual flowers in Cylindropuntia wolfii (Cactaceae)
BackgroundIn certain unisexual flowers, non-functional sexual organs remain vestigial and unisexuality can be overlooked leading to the ambiguous...
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Structure and number of mating pheromone genes is closely linked to sexual reproductive strategy in Huntiella
BackgroundHuntiella resides in the Ceratocystidaceae, a family of fungi that accommodates important plant pathogens and insect-associated...
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The fertilization process in Lithocarpus dealbatus (Fagaceae) and its implication on the sexual reproduction evolution of Fagales
Main conclusionThe pistillate flowers of Lithocarpus dealbatus show two pollen tube (PT) arresting sites (the style-joining and micropyle) within...
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Comparative genome anatomy reveals evolutionary insights into a unique amphitriploid fish
Triploids are rare in nature because of difficulties in meiotic and gametogenic processes, especially in vertebrates. The Carassius complex of...
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Regain of sex determination system and sexual reproduction ability in a synthetic octoploid male fish
Polyploids in vertebrates are generally associated with unisexual reproduction, but the direct consequences of polyploidy on sex determination system...
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Morphology, mating system and taxonomy of Volvox africanus (Volvocaceae, Chlorophyceae) from Thailand
BackgroundThe oogamous green algal genus Volvox exhibits extensive diversity in mating systems, including heterothallism and homothallism with...
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An intensive study plot to investigate chestnut tree reproduction
Key messagePollination is a key step for fruit production. To provide a tool for future in-depth analysis of pollination in chestnut, we describe in...
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Reorganization of the ancestral sex-determining regions during the evolution of trioecy in Pleodorina starrii
The coexistence of three sexual phenotypes (male, female and bisexual) in a single species, ‘trioecy’, is rarely found in diploid organisms such as...
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Expression and function analyses of the MIKCC-type MADS-box genes in Akebia trifoliata (Lardizabalaceae) flower development
The evolutionary origin and diversification of flowers in angiosperms remain one of the great unsolved mysteries in plants, while the molecular...
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Embryology of some flowers of the Gardenieae complex (Rubiaceae)
Different breeding systems occur in the Gardenieae complex (Rubiaceae), from homoecy to dioecy which is present in two tribes, Gardenieae and...
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Meiosis and gametogenesis in hybrid, polyploid, and clonal fishes: case studies in the dojo loach Misgurnus anguillicaudatus
Hybrid, polyploid, and clonal fishes are found naturally in wild populations, but they can also be induced artificially by cross-breeding and...
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Studies on domestication of the true morel Morchella importuna in India
Morels are one of the tastiest and highly prized macrofungi available in nature. Their complete domestication is still an ongoing process. The true...
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Morphological and anatomical changes during floral bud development of the trioecious Idesia polycarpa Maxim
Idesia polycarpa Maxim is described as a dioecious species, in which flowers are female or male, but we have also found individuals with bisexual...
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Genetic detection and population structure of a non-native hybridogenic Poeciliopsis species in the Santa Cruz River of Arizona, USA
The Gila topminnow ( Poeciliopsis occidentalis ) has undergone population recovery actions since being extirpated from much of its historical range in...
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Development and application of haploid embryonic stem cells
Haploid cells are a kind of cells with only one set of chromosomes. Compared with traditional diploid cells, haploid cells have unique advantages in...
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Sex determination mechanisms and sex control approaches in aquaculture animals
Aquaculture is one of the most efficient modes of animal protein production and plays an important role in global food security. Aquaculture animals...