Comparative Analysis of the Complete Mitochondrial Genome of Apis laboriosa (Insecta: Hymenoptera: Apidae) - Cytology and Genetics
Abstract Apis laboriosa Smith is the largest bee in the genus Apis, and it is mainly distributed in Yunnan and Tibet regions in China. In this study, two complete mitogenomes of A. laboriosa from Luding and Dehong were obtained through Illumina sequencing, and the phylogenetic relationship among different geographical populations of A. laboriosa was determined. The entire mitogenomes of A. laboriosa are 15 546 (Luding) and 15 239 (Dehong) bp in length, respectively. The A. laboriosa mitogenome contains 13 protein-coding genes (PCGs), 22 tRNA genes, 2 rRNA genes, and a control region rich in A + T. The maximum likelihood phylogenetic tree using 13 PCGs reveals that A. laboriosa from Dehong and Shangri-La clustered together and form a sister taxon to Luding. This study provides data for an in-depth exploration of the genetic diversity of A. laboriosa and layes a scientific foundation for the conservation of this species.
Leopard DNA study in South Africa traces ancestry to ice age – and will guide conservation
Research exploring how leopards evolved has found that South African leopards are descended from an ice age a million years ago.
Cat-ching criminals with DNA from pet hairs
Cat hair could be the purr-fect way to catch criminals, according to researchers from the University of Leicester. They have shown that a single cat hair contains DNA which could link a suspect and a crime-scene, or a victim.
Few words about possiblity of using plant mitogenomes in population genetics
@plants #mitogenome #plastome # pulsatilla
https://www.mdpi.com/2073-4425/14/1/67
Are the Organellar Genomes Useful for Fine Scale Population Structure Analysis of Endangered Plants?—A Case Study of Pulsatilla patens (L.) Mill
Pulsatilla patens is a rare and endangered species in Europe and its population resources have significantly decreased over the past decades. Previous genetic studies of this species made it possible to estimate the genetic diversity of the European population and to describe the structure of chloroplast and mitochondrial genomes. The main aim of these studies was to characterize the variability of chloroplast and mitochondrial genomes in more detail at the intra-population and inter-population levels. Our study presents new organelle genome reference sequences that allow the design of novel markers that can be the starting point for testing hypotheses, past and modern biogeography of rare and endangered species P. patens, and adaptive responses of this species to changing environments. The study included sixteen individuals from five populations located in Northeastern Poland. Comparative analysis of 16 P. patens plastomes from 5 populations enabled us to identify 160 point mutations, including 64 substitutions and 96 InDels. The most numerous detected SNPs and Indels (75%) were accumulated in three intergenic spacers: ndhD—ccsA, rps4—rps16, and trnL(UAG)—ndhF. The mitogenome dataset, which was more than twice as large as the plastome (331 kbp vs. 151 kbp), revealed eight times fewer SNPs (8 vs. 64) and six times fewer InDels (16 vs. 96). Both chloroplast and mitochondrial genome identified the same number of haplotypes—11 out of 16 individuals, but both organellar genomes slightly differ in haplotype clustering. Despite the much lower variation, mitogenomic data provide additional resolution in the haplotype detection of P. patens, enabling molecular identification of individuals, which were unrecognizable based on the plastome dataset.
#genetics #mitogenome An article published in the journal "Nature" reports the results of an analysis of modern humans' mitochondrial DNA to reconstruct the Homo sapiens family tree.
https://english.netmassimo.com/2019/10/30/according-to-a-genetic-research-humanitys-birthplace-is-in-todays-botswana According to a genetic research, humanity’s birthplace is in today’s Botswana
An article published in the journal 'Nature' reports the results of an analysis of modern humans' mitochondrial DNA to reconstruct the Homo sapiens family tree...
Cytology and Genetics
CellBioNews
Kuba.Sawicki
Massimo Luciani