Results 71 to 80 of about 1,661 (164)

Towards the conservation of the crucian carp in Europe: Prolific hybridization but no evidence for introgression between native and non‐native taxa

Molecular Ecology, Volume 33, Issue 19, October 2024.
Abstract Hybridization plays a pivotal role in evolution, influencing local adaptation and speciation. However, it can also reduce biodiversity, which is especially damaging when native and non‐native species meet. Hybridization can threaten native species via competition (with vigorous hybrids), reproductive resource wastage and gene introgression ...
Daniel L. Jeffries, Lori Lawson‐Handley, Dunja K. Lamatsch, K. Håkan Olsén, Carl D. Sayer, Bernd Hänfling   +5 more
wiley   +1 more source

Evidence for feminized genetic males in a flea beetle using newly identified X‐linked markers

Ecology and Evolution, Volume 14, Issue 8, August 2024.
This study investigates the highly female‐biased sex ratio in the flea beetle Altica lythri, examining potential mechanisms such as Wolbachia‐induced feminization of genetic males. Through transcriptomic analysis and the establishment of genotypic sex differentiation markers using the SEX‐DETector approach, we provide evidence that feminization of ...
Kim Rohlfing, Malte Grewoldt, Mathilde Cordellier, Susanne Dobler   +3 more
wiley   +1 more source

Gynogenesis and sex determination in Atlantic halibut (Hippoglossus hippoglossus)

, 2006
Gynogenesis refers to a process of uniparental inheritance whereby the resulting offspring retain only maternal DNA. It has been used to identify sex-determining mechanisms in fish and to produce all-female populations for aquaculture.
Reith, Michael, Benfey, Tillmann J., McGowan, Colin, Martin-Robichaud, Deborah J., Tvedt, Harald B.   +4 more
core   +1 more source

Full-Length Transcriptome Reveals Heterologous Sperm Fragments in Natural Gynogenetic Grass Carp

Fishes
Grass carp (Ctenopharyngodon idella) is one of the most economically important cyprinid species cultured in China. The diploid gynogenetic grass carp (2nGGC, 2n = 48) was generated from the hybrid of female grass carp (GC, 2n = 48) and male topmouth ...
Lang Qin, Yuxiang Wang, Ming Wen, Jinhui Huang, Xu Huang, Qian Chen, Dan Peng, Yang Wu, Qianye Wei, Fangzhou Hu, Kaijun Gong, Chun Zhang, Qinbo Qin, Chang Wu, Shaojun Liu   +14 more
doaj   +1 more source

Pengaruh lama radiasi sperma terhadap keberhasilan gynogenesis meiosisikan mas (Cyprinus Carpio)

, 2001
ABSTRAK Dalam Budidaya ikan mas unggul secara gynogenesis, faktor lama radiasi sperma memegang peranan yang sangat penting. Sehingga perlu dicari lama radiasi sperma yang optimal dalam proses gynogenesis meiosis.
Hani, Ahmad
core  

DEVELOPMENT OF ABNORMAL FLOWERS IN GENERATION OF DOUBLED HAPLOIDS OF SUMMER SQUASH (CUCURBITA PEPO L.)

Овощи России, 2018
The culture of unpollinated ovules in vitro in summer squash was used to develop fully homozygous breeding lines with the aim of the speeding-up breeding program.
E. A. Domblides, N. A. Shmykova, G. A. Khimich, I. B. Korotseva, A. S. Domblides   +4 more
doaj   +1 more source

A gynogenesis-based screen for maternal-effect genes in the zebrafish, Danio rerio

, 1999
In vertebrates, analysis of maternal factors governing development relies much more on embryological and overexpression studies rather than on genetic approaches. In the zebrafish, Danio rerio, the role of maternal determinants is largely unknown, and in
Pelegri, F., Schulte-Merker, S. ; https://orcid.org/   +1 more
core   +1 more source

Efficient Haploid Production on 'Wilking' Mandarin by Induced Gynogenesis

, 2012
International audienceSeedlessness is a major criterion for the citrus fresh fruit market. Therefore, triploidy breeding appears very promising for the selection of new citrus cultivars. CIRAD has developed a method to produce triploid hybrids by somatic
Ollitrault, Patrick, Kamiri, Mourad, Jedidi, Emna, Poullet, Thibaut, Froelicher, Yann   +4 more
core   +1 more source

Determining gynogenesis ability of onion (Allium cepa L.) by using SSR markers

, 2020
This research aimed to investigate whether Simple Sequence Repeats (SSRs) analysiscan be useful for determining the gynogenesis ability in onion. For this purpose microsatellite markers were used for the first time in this study.
Yaralı Karakan, Faika
core  

Hybridization and gynogenesis in two species of the genus Brachydanio

, 1992
Reciprocal crosses between Brachydanio frankei and B. rerio produced hybrids phenotypically intermediate between the parents. Eggs activated by UV-irradiated sperm yielded haploid progenies, which succumbed within 3 days after hatching. When B.
Pandian, T. J., Kavumpurath, S.
core   +1 more source