Polyploidy induced by heat shock in channel catfish

Bidwell, Christopher A.; Chrisman, C. L.; Libey, George S.

doi:10.1016/0044-8486(86)90219-x

Cited by 21 publications

(24 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Researchers have used heat shock to obtain tetraploid rainbow trout [124], channel catfish [125], tench (Tinea tinea L.) [126], and loach [127]. Similarly, hydrostatic pressure was used to obtain tetraploid tongue sole (Cynoglossus semilaevis.…”

Section: Polyploid Breedingmentioning

confidence: 99%

Development and application of biological technologies in fish genetic breeding

Duan

Xiao

et al. 2015

Sci. China Life Sci.

View full text Add to dashboard Cite

Fish genetic breeding is a process that remolds heritable traits to obtain neotype and improved varieties. For the purpose of genetic improvement, researchers can select for desirable genetic traits, integrate a suite of traits from different donors, or alter the innate genetic traits of a species. These improved varieties have, in many cases, facilitated the development of the aquaculture industry by lowering costs and increasing both quality and yield. In this review, we present the pertinent literatures and summarize the biological bases and application of selection breeding technologies (containing traditional selective breeding, molecular marker-assisted breeding, genome-wide selective breeding and breeding by controlling single-sex groups), integration breeding technologies (containing cross breeding, nuclear transplantation, germline stem cells and germ cells transplantation, artificial gynogenesis, artificial androgenesis and polyploid breeding) and modification breeding technologies (represented by transgenic breeding) in fish genetic breeding. Additionally, we discuss the progress our laboratory has made in the field of chromosomal ploidy breeding of fish, including distant hybridization, gynogenesis, and androgenesis. Finally, we systematically summarize the research status and known problems associated with each technology. fish genetic breeding, genetic improvement, biological method, traits, new variety Citation:

show abstract

Section: Polyploid Breedingmentioning

confidence: 99%

Development and application of biological technologies in fish genetic breeding

Duan

Xiao

et al. 2015

Sci. China Life Sci.

View full text Add to dashboard Cite

show abstract

“…The culture of channel catfish (Zctalurus punctatus) depends primarily on natural spawning in ponds for production of fry. However, for studies on hybridization, chromosome manipulation, and reproductive performance in catfish, researchers have induced spawning with fish pituitary extracts (Sneed and Clemens 1960;Wolters et al 1981;Bidwell et al 1985), HCG (Sneed and Clemens 1959;Dupree et al 1965) and LHRH analogues (MacKenzie et al 1989;Busch and Steeby 1990). Induced spawning is required when the exact time of egg ovulation or fertilization must be known (e.g., for ploidy manipulation).…”

mentioning

confidence: 99%

Reproductive Performance of Pigmented and Albino Female Channel Catfish Induced to Spawn with HCG or Ovaprim

Goudie

Simco

Davis

et al. 1992

J World Aquaculture Soc

View full text Add to dashboard Cite

Reproductive performance of albino and pigmented channel catfish (Ictalurus punctarus) females was compared when spawning was induced with HCG (human chorionic gonadotropin) or Ovaprim3 (domperidone and [d‐Ala6, Pro9 NEt]‐luteinizing hormone‐releasing hormone). In 1985, only HCG was used to induce spawning. Albino females required more injections, had a longer latency period from time of first injection to spawning, and had lower spawning success (30%) than pigmented females (77%). No differences were observed between albino and pigmented females for time‐of‐day of spawning, number of eggs obtained by manual stripping, and number of eggs/kg body weight. In 1988, HCG, Ovaprim, and saline (control) were used to induce spawning. HCG induced spawning in 80% of albino and 71% of pigmented females. Ovaprim induced 67% of pigmented females to spawn, but only 2 of 5 albino females spawned. One of four pigmented females injected with saline spawned. Albino females yielded 40–50% fewer eggs/kg body weight than pigmented females. Other performance characteristics for albino and pigmented females were similar whether injected with HCG or Ovaprim. High temperatures encountered during the 1985 spawning season my have had a differential effect on albino and pigmented fish and may account for some differences in spawning success.

show abstract

“…Although tetraploid fish are expected to be stepping stones to produce sterile triploid and successive auto-and allo-tetraploid individuals by using their diploid gametes, tetraploids are seldom produced due to extremely low survival and frequent occurrence of abnormal development after the treatment. However, successful examples have been reported in a limited number of finfish species, such as rainbow trout Oncorhynchus mykiss (Chourrout et al, 1986;Blanc et al, 1987;Diter et al, 1988;Thorgaard et al, 1990), channel catfish Ictalurus punctatus (Bidwell et al, 1985;Goudie et al, 1995), African catfish Clarias gariepinus (Varadi et al, 1999), tilapia Oreochromis aureus (Don and Avtalion, 1988), mud loach Misgurnus mizolepis (Nam et al, 2004), common carp (Cherfas et al, 1993), Indian major carp Labeo rohita (Reddy et el., 1990) and tench Tinca tinca (Flajshans et al, 1993). In masu salmon, Oncorhynchus masou, tetraploidization by inhibition of the first cleavage has also been tried, but viable and normal tetraploid individuals with near-adult sizes have not been obtained yet (Yamazaki and Goodier, 1993;Sakao et al, 2003).…”

Section: Introductionmentioning

confidence: 99%

Drastic mortality in tetraploid induction results from the elevation of ploidy in masu salmon Oncorhynchus masou

et al. 2006

View full text Add to dashboard Cite

Although tetraploidy is considered to be important and useful for the production of sterile triploids and fertile allotetraploids in aquaculture, in most cases the resultant embryos exhibit extremely low survival. In this study, we aimed to clarify the cause of the inviability of tetraploids in masu salmon. Firstly, we compared developmental rates of the first cell cycle among 9 single pairs produced by all possible matings between 3 females and 3 males. The results showed that the fertilized eggs developed almost synchronized among individuals from each pair but asynchronous among pairs and this asynchronous development was more apparent among pairs from different female than those from different male. Secondly, we induced both tetraploidy (4N) and gynogenetic diploidy (G2N) , 7 min duration) for the first cleavage inhibition using single-pair mating. This experiment was designed to verify whether the cause of mortality of induced tetraploidy was the elevated ploidy itself. Eggs from one female were divided into 2 groups and fertilized with normal or UV-irradiated sperm from one male, respectively. Then each group of eggs was subdivided into 6 groups: one was an intact control and the other 5 groups were treated with PS at every 30 min from 5 to 7 hpf at 10 °C. As a result, the treated eggs of 4N and G2N showed the highest survival (90.8% and 60.6%, respectively) and embryogenesis rate (both 100% relative to surviving eggs) at 33 dpf, only when PS treatment was performed at late prometaphase (6 hpf and 6.5 hpf, respectively). The other PS groups showed extremely low survival (1.5-52.8% and 3.1-14.8%), ceased morphogenetic development and developed into only undifferentiated cell masses. This experiment was repeated 2 more times using other single-pair mating and the results showed the same tendency. The embryonic bodies were confirmed by flow cytometry to have approximately objective ploidy, tetraploid, hypo-or hyper-tetraploid in 4N and diploid or hypo diploid in G2N.However, all tetraploid embryos, even those with normal morphology, began to die 3 simultaneously around the hatching period (34 dpf), while G2N embryos showed normal morphology and survived beyond 50 dpf (55.6%). Most tetraploid embryos showed malformation and had very poor vascular systems even in normal-looking ones. These results suggest that the mortality of induced tetraploids depends not only on the side effects of the PS treatment but also strongly depends on the induced tetraploidy itself. 5

show abstract

Polyploidy induced by heat shock in channel catfish

Cited by 21 publications

References 0 publications

Development and application of biological technologies in fish genetic breeding

Development and application of biological technologies in fish genetic breeding

Reproductive Performance of Pigmented and Albino Female Channel Catfish Induced to Spawn with HCG or Ovaprim

Drastic mortality in tetraploid induction results from the elevation of ploidy in masu salmon Oncorhynchus masou

Contact Info

Product

Resources

About