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Extra-pair paternity in Varied Tits Poecile varius

100%

Ju J. , Yin J. , Racey P. , Zhang L. , Li D. , Wan D.

Acta Ornithologica

2014

tom 49

nr 1

Extra-pair paternity is of particular interest in socially monogamous species, in which there is a substantial discrepancy between social and genetic mating systems. Varied Tits Poecile varius are socially monogamous passerine birds with a distribution in Japan, Korea, and northeast China. We established paternity in all individuals of 40 broods by microsatellite genotyping. Extra-pair paternity occurred in 16 of the 40 broods (40%) and accounted for about 14.7% (37/251) of offspring, higher than the average value (11%) among socially monogamous birds. The relatedness between social partners did not correlate with the percentage of extra-pair offspring in the brood and there was no difference in heterozygosity between maternal half-siblings. As the first such investigation in this species, this study adds to our understanding of their mating system and will be useful for comparative studies of variations in extra-pair paternity rate.

Zbadano kojarzenia pozapartnerskie w 40 lęgach sikory rdzawej na podstawie analiz sekwencji mikrosatelitarnych (Apendyks 1). Stwierdzono, że co najmniej jedno pisklę (maksymalnie cztery) z kojarzeń pozapartnerskich występowało w 40% lęgów (Tab. 1). Łącznie we wszystkich lęgach takich piskląt było ponad 14%, co jest znacznie większym udziałem niż średnia stwierdzona dla ptaków socjalnie monogamicznych. Stopień pokrewieństwa między partnerami w obrębie pary nie był związany z odsetkiem piskląt z kojarzeń pozapartnerskich w lęgu. Dodatkowo, nie stwierdzono różnic w poziomie heterozygotyczności pomiędzy potomstwem pochodzącym od różnych ojców.

Purification, characterization and inhibition of alanine racemase from a pathogenic strain of Streptococcus iniae

100%

Muhammad M. , Li Y. , Gong S. , Shi Y. , Ju J. , ZhaoB. , Liu D.

Polish Journal of Microbiology

2019

tom 68

nr 3

Treating Dye Wastewater of Reactive Brilliant Red K-2BP by Cetyltrimethylammonium Chloride-Modified Bentonite with Polyacrylamide Flocculant

100%

Fu J. , Chen Y. , Ju J. , Li Q. , An S. , Zhu H.

Polish Journal of Environmental Studies

2011

tom 20

nr 1

We studied the removal of K-2BP from aqueous solution by cetyltrimethylammonium chloride-modified bentonite with polyacrylamide flocculant (CTAC-bentonite/PAM). The preliminary results disclose that the CTAC modification method can potentially enhance the removal efficency of bentonite and, by combination with PAM, the adsorbed bentonite can settle within a short sedimentation time. In addition, alkaline condition is favorable for the adsorption; however, temperature influence is weak. Considering the high efficiency and low cost, CTAC-bentonite/PAM could broadly extend in the treatments of dye wastewater.

Betaine improves polymer-grade D-lactic acid production by Sporolactobacillus inulinus using ammonia as green neutralizer

100%

Lv G. , Che C. , Li L. , Xu S. , Guan W. , Zhao B. , Ju J.

Polish Journal of Microbiology

2017

tom 66

nr 2

The traditional CaCO₃-based fermentation process generates huge amount of insoluble waste. To solve this problem, we have developed an efficient and green D-lactic acid fermentation process by using ammonia as neutralizer. The 106.7 g/l of D-lactic acid production and 0.89 g/g of consumed sugar were obtained by Sporolactobacillus inulinus CASD with a high optical purity of 99.7% by adding 100 mg/l betaine in the simple batch fermentation. The addition of betaine was experimentally proven to protect cells at high concentration of ammonium ion, increase D-lactate dehydrogenase specific activity and thus promote the production of D-lactic acid.