Comparisons of growth and development of hybrid and backcrossing progenies between Crassostrea hongkongensis and Crassostrea ariakensis

Q4 Environmental Science

水产学报 Pub Date : 2013-01-01 DOI:10.3724/SP.J.1231.2013.38414

Z. Huo, Zhaoping Wang, Jian Liang, Z. Liu, Jian-wei Shen, Yuehuan Zhang, Tuo Yao, Jiaqi Su, Rui-hai Yu

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引用次数: 1

Abstract

Hybridization and backcrossing between Crassostrea hongkongensis and Crassostrea ariakensis were conducted in this study,and consequently,the experimental groups HH(C.hongkongensis),AA(C.ariakensis),HA(C.hongkongensis ♀×C.ariakensis ♂),AH(C.hongkongensis♂×C.ariakensis♀),HAHA(HA♀×HA♂),HHA(HH♀×HA♂),HAH(HA♀×HH♂),HAA(HA♀×AA♂),AHA(AH♀×AA♂)were produced using the method of diallel cross.The results showed that C.hongkongensis eggs can be fertilized by C.ariakensis sperm(47.33%±2.52%),but not vice versa.The fertilization can occur between HA and HH or AA.The fertilization rates of backcrossing groups were lower than those of inbred groups HH and AA.The hatching rates of the backcrossing between HA and AA were lower than those of the other groups,which were 20.33%±2.08%(AHA),55.67%±2.52%(HAA)respectively.The larval survival rate of the AHA and HAHA was 0;The survival of HA larvae was lower than HH and AA.The hybrid larvae grew faster than C.ariakensis larvae,but grew slower than C.hongkongensis.The survival rates of HA,HH,and AA juveniles were not significantly different(P0.05).The hybrid juveniles grew faster than C.hongkongensis larvae,but grew slower than C.ariakensis.In addition,the larval and juvenile growth of HHA and HA was not significantly different(P0.05).The larval survival rate was not significantly different in HHA and HA.The juvenile survival rate of HHA was lower than HA,but was higher than that of the other backcrossing groups.The results provide a basis for study on the hybridization and backcrossing between C.hongkongensis and C.ariakenis.

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香港长牡蛎与山羊长牡蛎杂交与回交后代生长发育的比较

本研究对香港长牡蛎与ariakensis进行杂交回交，得到HH(c.h onkongensis)、AA(c.a ariakensis)、HA(c.c。hongkongensis♀×C。采用双列杂交的方法，获得ariakensis♂)、AH(c.h hongkongensis♂×C.ariakensis♀)、HAHA(HA♀×HA♂)、HHA(HH♀×HA♂)、HAH(HA♀×HH♂)、HAA(HA♀×AA♂)、AHA(AH♀×AA♂)。结果表明，香港c.h orkongenensis的卵子能与c.r ariakensis的精子受精(47.33%±2.52%)，反之则不能。受精可以发生在HA和HH或AA之间。回交组受精率低于自交系HH和AA组。HA与AA回交的孵化率低于其他各组，分别为20.33%±2.08%(AHA)和55.67%±2.52%(HAA)。AHA和HAHA的幼虫存活率为0,HA的幼虫存活率低于HH和AA。杂交幼虫的生长速度快于ariakensis幼虫，而慢于hongkongenensis幼虫，HA、HH和AA的成活率无显著差异(P0.05)。杂交幼鱼的生长速度快于香港弧菌幼虫，而慢于ariakensis幼虫，HHA和HA的幼虫和幼鱼生长无显著差异(P0.05)。HHA和HA的幼虫存活率无显著差异。HHA组的成活率低于HA组，但高于其他回交组。研究结果为香港弧菌与利氏弧菌的杂交和回交研究提供了依据。

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来源期刊

水产学报 Environmental Science-Management, Monitoring, Policy and Law

CiteScore

1.40

自引率

0.00%

发文量

5213

期刊介绍： "Fisheries of" mainly reflects the results of scientific research and development of the direction of aquaculture for domestic and foreign academic exchanges Fisheries Service. Mainly basic research published in Fisheries, aquaculture and proliferation of fishing waters environmental protection, preservation of aquatic products processing and utilization, fishing equipment, and other aspects of mechanical papers, research briefings and reviewed.