Phenotypic trait analysis of diploid and triploid hybrids from female Crassostrea hongkongensis×male C. gigas

Zhang, Yuehuan; Zhang, Yang; Wang, Zhaoping; Yan, Xiwu; Zhou, Yu

doi:10.1016/j.aquaculture.2014.08.039

Cited by 36 publications

(23 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Although a number of oyster breeders have conducted interspecific hybridization among the Crassostrea genus Batista et al, 2007Batista et al, , 2008Gaffney and Allen, 1993;Huo et al, 2013;Huvet et al, 2002Huvet et al, , 2004Piferrer et al, 2009;Xu et al, 2009Xu et al, , 2014Zhang et al, 2012Zhang et al, , 2014, there are no reports of further utilization of the hybrids with the exception of two subspecies of C. gigas and C. angulata (Wang et al, 2008). This is the first report to describe completely fertile backcrossed progeny and F 2 hybrids; this finding differed from the F 1 hybrids (C. hongkongensis ♀ × C. gigas ♂) that exhibited high levels of sterility .…”

Section: Restoration Of Progeny Fertilitymentioning

confidence: 74%

Artificial interspecific backcrosses between the hybrid of female Crassostrea hongkongensis × male C. gigas and the two parental species

Zhang

et al. 2016

Aquaculture

Self Cite

View full text Add to dashboard Cite

Section: Restoration Of Progeny Fertilitymentioning

confidence: 74%

Artificial interspecific backcrosses between the hybrid of female Crassostrea hongkongensis × male C. gigas and the two parental species

Zhang

et al. 2016

Aquaculture

Self Cite

View full text Add to dashboard Cite

“…The cell suspensions were passed through a 25 μm screen immediately before the assay (Zhang et al . ). Ploidy levels were calculated relative to a diploid standard from the gill of the untreated groups (Eudeline et al .…”

Section: Methodsmentioning

confidence: 97%

“…There are several recent papers addressing various questions regarding cross‐breeding of Hong Kong oyster with other oysters (Zhang et al . , ; Huo, Wang, Yan & Gaffney ; Zhang, Zhang, Li, Su, Guan, Xiao, Li & Yu ; Zhang, Zhang, Li, Wang, Yan & Yu ,b; Zhang, Zhang, Li, Xiao, Xiang, Wang, Yan & Yu ). However, in spite of its high economic value, there is limited information available about triploidy in C .…”

Section: Introductionmentioning

confidence: 99%

A comparative study of the survival, growth and gonad development of the diploid and triploid Hong Kong oyster, Crassostrea hongkongensis (Lam & Morton 2003)

Zhang

Qin

et al. 2016

Aquac Res

Self Cite

View full text Add to dashboard Cite

The Hong Kong oyster, Crassostrea hongkongensis is an economically important and widely cultivated oyster species in southern China. Aiming to improve the aquaculture potentials of C. hongkongensis, a triploid organism was generated by inhibiting the second polar body formation in the fertilized eggs, using 0.5 mg L−1 cytochalasin B. Triploids exhibited significantly higher growth and were larger than the diploids throughout the life cycle. Much of the triploid growth advantage can be attributed to resource reallocation to structural development due to gonadal sterility. Most of the triploid oysters exhibited polymorphic sterility with atrophic gonads and abnormal gametogenesis. Only few ‘dysfunctional’ sperms were produced by the triploid males, thus ruling out reproductive and genetic contamination of natural oyster populations from triploid cultivations. This advantage in addition to the superior growth of triploids makes it a potent alternative in Hong Kong oyster aquaculture industry. Triploid survival was mostly found to be similar to that of diploids except for day 360, when a significant triploid advantage in terms of survival was noted. Furthermore, we found that growth and survival of Hong Kong oyster is significantly higher at the Zhuhai site in comparison to the Beihai site. Our results indicate a strong environmental effect in Hong Kong oyster cultivation and points to the fact that Zhuhai site was more suitable for oyster farming than the Beihai site. Overall, this study provides valuable information to the aquaculture industry of southern China.

show abstract

“…; You, Ke, Luo & Wang ; Zhang et al . ) and calculated using the following equation:

Ht (%) = (2 HH - HH - AA) / false(HH + AA false)

where HH, HA and AA indicated a phenotypic value (shell height, survival rate, etc.) on the same day.…”

Section: Methodsmentioning

confidence: 99%

Phenotypic trait ofCrassostrea hongkongensis♀×C. angulata♂ hybrids in southern China

Zhang

et al. 2015

Aquac Res

Self Cite

View full text Add to dashboard Cite

The Hong Kong oyster (Crassostrea hongkongensis) and the Portuguese oyster (Crassostrea angulata) are important aquaculture species in southern China. To understand the potential feasibility of hybridization between the two species, two-bytwo factorial cross-experiments were conducted in Shenzhen (Guangdong province). An asymmetry in fertilization was revealed: C. hongkongensis eggs could be fertilized by C. angulata sperm, but the reciprocal cross was not possible. The fertilization and hatching success in the C. hongkongensis females 9 C. angulata males (HA) cross was lower than the two intraspecific crosses. Moreover, hybrid larvae had a slower growth rate than those from parental progenies due to genome incompatibility. However, the size of the spat and adult growth were greater than those of the two parental progeny, with obvious heterosis during the grow-out stage. The survival advantage of hybrids was examined at all times. The surprising finding was that all hybrids were completely fertile, meaning they could produce normal and functional gametes. Genetic analysis by molecular markers was applied to confirm that the HA spat were true hybrids. Our results revealed that the interspecific hybridization between C. hongkongensis and C. angulata is completely successful in one direction. Furthermore, hybrids are viable, fast growing and completely fertile, which provides a promising method for the genetic improvement of oysters as a new aquaculture stock in southern China.

show abstract

Phenotypic trait analysis of diploid and triploid hybrids from female Crassostrea hongkongensis×male C. gigas

Cited by 36 publications

References 47 publications

Artificial interspecific backcrosses between the hybrid of female Crassostrea hongkongensis × male C. gigas and the two parental species

Artificial interspecific backcrosses between the hybrid of female Crassostrea hongkongensis × male C. gigas and the two parental species

A comparative study of the survival, growth and gonad development of the diploid and triploid Hong Kong oyster, Crassostrea hongkongensis (Lam & Morton 2003)

Phenotypic trait ofCrassostrea hongkongensis♀×C. angulata♂ hybrids in southern China

Contact Info

Product

Resources

About