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您的检索式：作者名="PANG YouZhi"
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| 1 | Climate variability recorded by n-alkanes of paleolake sediment in Qaidam Basin on the northeast Tibetan Plateau in late MIS3显示文摘Here we combine n-alkanes preserved in a shell bar section from Qarhan paleolake, Qaidam Basin with the other sedimentary proxies to elucidate the lake evolution process during the period 39.7 to 17.5 14C ka BP (calibrated age ranges from 43.5 to 22.4 cal. ka BP). In different stages, the n-alkane homologues exhibited different distribution modes indicative of variations in the surrounding vegetation and the hydrologic condition of the lake. The n-alkanes proxies (CPIh, ACLh, Paq) have the same trends as the summer solar insolation variation, implying that the summer insolation is the most important climatic factor driving the environmental changes and also indirectly controls lake evolution on the Tibetan Plateau. CPIh and ACLh as well as the total pollen concentration appear to show a trend comparable with methane concentration record from the GRIP ice core that reflected the Dansgaard-Oeschger events. This demonstrates that the paleoclimate variations in Qarhan area generally agree with global climate change and show rapid oscillations in late MIS3. These findings provide the latest molecular fossil evidence from paleolake sediments to confirm that lake evolution on Tibetan Plateau in late MIS3 was closely associated with enhanced summer insolation. | PU Yang ZHANG HuCai LEI GuoLiang CHANG FengQin YANG MingSheng ZHANG WenXiang LEI YanBin YANG LunQing PANG YouZhi | 2010 | Science China Earth Sciences2010，53，6： | 8 |
| 2 | Microsatellite Marker-based Analysis of the Genetic Diversity of Yellow River Carp显示文摘To provide accurate base data about the genetic resources of Yellow River carps,the genetic diversity in artificially bred population and wild population of Yellow River carps from Henan Province was analyzed with microsatellite markers. The results showed that 16 alleles were detected at six microsatellite loci in each population. The average effective number of alleles( Ne) was 2. 350 in artificially bred population and 2. 085 in wild population. The observed heterozygosity( Ho) of artificially bred population,wild population and mixed population was 0. 614,0. 576 and 0. 601; and the unbiased expected heterozygosity( He) was 0. 569,0. 535 and 0. 559; and the polymorphism information content( PIC) was 0. 474,0. 428 and 0. 468,respectively. The PIC of the six loci ranged from 0. 304 to 0. 864. The analysis of the genetic differentiation for the six microsatellite loci in the two populations showed that the genetic differentiation coefficient( Fst) at only one microsatellite locus HLJ483 was greater than 0. 05,and that at five microsatellite loci were less than 0. 05,which was consistent with the standard of nongenetic differentiation between populations( Fst= 0-0. 05). The average Fstat the six loci was 0. 02,and the gene flow value( Nm) at all loci was greater than1 and the average of Nm was 12. 202. The results indicate that there is relatively abundant genetic diversity in Yellow River carps. | Youbing YANG Xiuying MA Wei WANG Youzhi PANG Wanguang CHEN | 2017 | Agricultural Biotechnology2017，6，3： | 0 |
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