Results 71 to 80 of about 929 (182)

Polyamines are involved in the gynogenesis process in onion [PDF]

Physiologia Plantarum, 2006
Haploidization in onion (Allium cepa L.) using immature flower buds simulates zygotic embryogenesis with no fecundation. In order to know the involvement of polyamines (PAs) in this process, we determined the concentration of endogenous PAs in flower buds and experimented the addition of various combinations of PA molecules in the medium.
Geoffriau, Emmanuel, Kahane, Rémi, Martin-Tanguy, Josette   +2 more
openaire   +3 more sources

A Review of Studies on the Breeding, Reproduction and Fry Rearing of Largemouth Bass (Micropterus nigricans) in China

Aquaculture, Fish and Fisheries, Volume 4, Issue 6, December 2024.
The technological advancements in the introduction, breeding, reproduction and fry rearing of largemouth bass in China over the last four decades were comprehensively reviewed. Three early breeding and out‐of‐season breeding modes which have been successfully developed in China were analysed ABSTRACT Many countries and regions around the world have ...
Shoubing Wang, Zijie Song, Xingguo Liu, Sihan Xu, Zhaojun Gu   +4 more
wiley   +1 more source

Shoots formation from gynosinesis Cucumis sativus l.

Ho Chi Minh City Open University Journal of Science - Engineering and Technology, 2018
Haploid plants achieve through androgenesis or gynogenesis. In gynogenesis method, the ovary or ovule are used as explants induct haploid plants. Female flower one day before flowering of Cucumis sativus L. are collected.
Le Thi Kim Ngoc, Nguyen Tran Dong Phuong
doaj   +1 more source

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

The paradise fish, an advanced animal model for behavioral genetics and evolutionary developmental biology

Journal of Experimental Zoology Part B: Molecular and Developmental Evolution, Volume 342, Issue 3, Page 189-199, May 2024.
Paradise fish are air‐breathers, living in hypoxic freshwater environments and displaying complex innate behaviors. To help with gas exchange they have evolved a labyrinth organ which makes them a prime subject for evo‐devo studies, too. Abstract Paradise fish (Macropodus opercularis) is an air‐breathing freshwater fish species with a signature ...
Nóra Szabó, Erika Fodor, Zoltán Varga, Anita Tarján‐Rácz, Kata Szabó, Ádám Miklósi, Máté Varga   +6 more
wiley   +1 more source

Maternal ploidy shapes reproductive pathways in the triploid hybrid Chrosomus eos × eos‐neogaeus

Molecular Ecology, Volume 33, Issue 5, March 2024.
Abstract Elements transferred from a mother to her eggs may strongly influence the phenotype of her offspring. Such maternal effects depend on the genotype of the mother, and while multiple ploidy levels occur naturally in some vertebrate species, studies evaluating the impact of maternal ploidy on offspring are scarce. This paper aimed to test whether
Joëlle Lafond, Bernard Angers
wiley   +1 more source

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

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

GYNOGENESIS INDUCTION IN CULTURE OF UNPOLLINATED OVULES OF PUMPKIN

Овощи России, 2011
The perspective of utilization of in vitro culture of unpollinated ovules for development of dihaploid lines of pumpkin is described in the article. The ovules of five hybrids were cultivated on CBM medium. The following combinations of growth regulators
N.A. Shmykova, D.V. Shumilina, V.P. Kushnereva, G.A. Khimich   +3 more
doaj   +1 more source