Neighbor joining

Bài viết "Một số kết quả nghiên cứu về giải pháp sử dụng hom giống trong phòng chống bệnh khảm lá sắn tại Việt Nam" trình bày một số kết quả nghiên cứu về ảnh hưởng của việc sử dụng hom giống bị nhiễm bệnh cũng như biện pháp xử lý hom giống đối với bọ phấn trắng và bệnh khảm lá sắn. Mời các bạn cùng tham khảo!

9p vuhuyennhi 02-08-2022 6 4   Download

Sequences of the mitochondrial cytochrome oxidase I (COI) gene of one Greek and 25 Turkish Myzus cerasi (Fabricus) (Hemiptera: Aphididae) populations collected from Prunus avium and Prunus cerasus were analyzed. The partial coding region of COI studied is 605 bp for all the populations, from which 565 nucleotides were conserved, 40 were variable, 37 were singleton, and 3 were parsimony-informative. Four haplotypes were identified based on nucleotide substitutions and the mean of intraspecific divergence was calculated to be 0.3%.

10p dolomite36 30-12-2021 19 0   Download

In phylogenetic reconstruction the result is a tree where all taxa are leaves and internal nodes are hypothetical ancestors. In a live phylogeny, both ancestral and living taxa may coexist, leading to a tree where internal nodes may be living taxa. The well-known Neighbor-Joining heuristic is largely used for phylogenetic reconstruction.

13p viconnecticut2711 28-10-2020 16 0   Download

An attempt has been made to determine the phylogenetic relationship to trace out the evolutionary pattern of the test sequence of Xiphinema pachydermum partial 28S rRNA gene and to find out relationship of the same with other selected sequences of NCBI by constructing phylogenetic trees. Nucleotide sequence of 28S ribosomal RNA gene of Xiphinema pachydermum from Solan, Himachal Pradesh (AM779749.1) showed maximum homology of 93% with Xiphinema inaequale isolate HP 28S large subunit ribosomal RNA gene, partial sequence (HM163210.1) from Baijnath, Himachal Pradesh.

9p trinhthamhodang3 22-02-2020 25 0   Download

Castor is a non-edible oilseed crop, primarily grown for oil containing an unusual hydroxy fatty acid and ricinoleic acid (80–90%) of the total fatty acids. Commercial exploitation of heterosis in castor was successful in India due to the development of stable pistillate lines from a dominant and epistatic “S” type pistillate source. Diversification of pistillate sources using NES and other new sources necessitated the need for identification of diverse male combiners among the existing pool of male combiners.

15p cothumenhmong1 08-12-2019 13 0   Download

In this study, the genetic relationships among 12 Fritillaria taxa collected from different regions of Turkey were investigated using the amplified fragment length polymorphism (AFLP) technique.

7p sony2711 01-02-2019 16 2   Download

For small join tables, REED always chooses to push them into the network if their selectivity is smaller than one. For intermediate tables, the REED query optimizer makes a decision as to whether to push the join into the network based on the estimated selectivity of the predicate (which may be learned from past performance or gathered statistics, or estimated using basic query optimization tech- niques [28]) and the average depth of sensor nodes in the network.

9p nhacsihuytuan 06-04-2013 44 6   Download

Tuyển tập các báo cáo nghiên cứu về sinh học được đăng trên tạp chí y học Molecular Biology cung cấp cho các bạn kiến thức về ngành sinh học đề tài: On the optimality of the neighbor-joining algorithm...

11p hoami_2511 21-10-2011 50 4   Download