The present work has compiled a total of 389 brachyuran crab species belonging to 188 genera and 38 families to be present in mangrove forests across 122 countries/territories in 10 sub-regions of two global hemispher...The present work has compiled a total of 389 brachyuran crab species belonging to 188 genera and 38 families to be present in mangrove forests across 122 countries/territories in 10 sub-regions of two global hemispheres viz.,Indo-West Pacific(IWP)and Atlantic East Pacific(AEP).The mangrove crabs are highly diverse in the IWP as compared to AEP.They exceed 100 species in nine countries of the IWP viz.,Indonesia,India,Japan,Thailand,Australia,Singapore,Philippines,Malaysia,and China.The least number of mangrove crab species(>10)are found to be present in 38 countries under the AEP.Four countries/territories do not have any record of mangrove crabs.Sesarmidae is the predominant family of mangrove crabs,followed by Ocypodidae and Portunidae.The present work also has brought out 818 synonyms,which otherwise interfere with the preparation of a checklist for an exact number of crab species.It is a matter of necessity to conserve the crabs,which are keystone species of the mangrove ecosystems.展开更多
The genome size（C-value） of an organism is referring to the DNA content of its non-replicated haploid chromosome complement,generally deduced from measuring somatic diploid nuclei.We presented genome size（C-value）...The genome size（C-value） of an organism is referring to the DNA content of its non-replicated haploid chromosome complement,generally deduced from measuring somatic diploid nuclei.We presented genome size（C-value） data obtained by flow cytometry for four commercially important crabs（Portunus trituberculatus,Charybdis japonica,Scylla paramamosain,and Eriocheir sinensis） common in the coast of China.Gallus domesticus（2C=2.5 pg） was used as the internal standard.The results showed that the C-value for P.trituberculatus,C.japonica,S.paramamosain,and E.sinensis were（2.31±0.01） pg,（2.33±0.03） pg,（1.64±0.02） pg,and（2.29±0.03） pg,respectively.The C-value of P.trituberculatus,C.japonica and S.paramamosain were reported for the first time.The data represented by the four species indicated that they had lower DNA contents than average DNA values in crustaceans（（4.99±0.48） pg）,and three of the four values were very similar if not identical.The results provide useful data for future studies in the fields of biodiversity,species conservation,and phylogeny of these commercial crabs.They will also be helpful in instructing the hybridization breeding program and estimating the cost of the whole genome sequencing project.展开更多
基金DST-TWAS for Post-Doc.Fellowship(WWM,FR No.3240306336).
文摘The present work has compiled a total of 389 brachyuran crab species belonging to 188 genera and 38 families to be present in mangrove forests across 122 countries/territories in 10 sub-regions of two global hemispheres viz.,Indo-West Pacific(IWP)and Atlantic East Pacific(AEP).The mangrove crabs are highly diverse in the IWP as compared to AEP.They exceed 100 species in nine countries of the IWP viz.,Indonesia,India,Japan,Thailand,Australia,Singapore,Philippines,Malaysia,and China.The least number of mangrove crab species(>10)are found to be present in 38 countries under the AEP.Four countries/territories do not have any record of mangrove crabs.Sesarmidae is the predominant family of mangrove crabs,followed by Ocypodidae and Portunidae.The present work also has brought out 818 synonyms,which otherwise interfere with the preparation of a checklist for an exact number of crab species.It is a matter of necessity to conserve the crabs,which are keystone species of the mangrove ecosystems.
基金Shandong Provincial Natural Science Foundation under contract No.ZR2014CP006Zhejiang Major Special Program of Breeding under contract No.2012C12907-3+2 种基金the Open Fund of Zhejiang Provincial Top Key Discipline of Aquaculture under contract No.xkzsc02the Independent Innovation Program of Qingdao under contract No.15-9-1-44-jchsponsored by K.C.Wong Magna Fund in Ningbo University
文摘The genome size（C-value） of an organism is referring to the DNA content of its non-replicated haploid chromosome complement,generally deduced from measuring somatic diploid nuclei.We presented genome size（C-value） data obtained by flow cytometry for four commercially important crabs（Portunus trituberculatus,Charybdis japonica,Scylla paramamosain,and Eriocheir sinensis） common in the coast of China.Gallus domesticus（2C=2.5 pg） was used as the internal standard.The results showed that the C-value for P.trituberculatus,C.japonica,S.paramamosain,and E.sinensis were（2.31±0.01） pg,（2.33±0.03） pg,（1.64±0.02） pg,and（2.29±0.03） pg,respectively.The C-value of P.trituberculatus,C.japonica and S.paramamosain were reported for the first time.The data represented by the four species indicated that they had lower DNA contents than average DNA values in crustaceans（（4.99±0.48） pg）,and three of the four values were very similar if not identical.The results provide useful data for future studies in the fields of biodiversity,species conservation,and phylogeny of these commercial crabs.They will also be helpful in instructing the hybridization breeding program and estimating the cost of the whole genome sequencing project.
