Arm-less mitochondrial tRNAs conserved for over 30 millions of years in spiders.

ABSTRACT:

Background

In recent years, Next Generation Sequencing (NGS) has accelerated the generation of full mitogenomes, providing abundant material for studying different aspects of molecular evolution. Some mitogenomes have been observed to harbor atypical sequences with bizarre secondary structures, which origins and significance could only be fully understood in an evolutionary framework.

Results

Here we report and analyze the mitochondrial sequences and gene arrangements of six closely related spiders in the sister genera Parachtes and Harpactocrates, which belong to the nocturnal, ground dwelling family Dysderidae. Species of both genera have compacted mitogenomes with many overlapping genes and strikingly reduced tRNAs that are among the shortest described within metazoans. T

SUBMITTER: Pons J 

PROVIDER: S-EPMC6706885 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature