A new evolutionary genetic phenomenon—increase in the number of B-chromosomes (almost threefold) accompanied by change in B chromosome morphotypes—was discovered in the Artybash population of East Asian mouse Apodemus peninsulae (Mountain Altai) over a historically short period (22 years), comparable with a small number of mouse generations (ten generations). The process of increase in the number of A. peninsulae B-chromosomes in Mountain Altai has been monitored over 26 years (1980, 1986, 1988, 1990, 2002, and 2006). A concept of a new type of genomic mutations—mutations in the number of B-chromosomes—has been substantiated. The phenomenon of genomic mutations in pro-B-chromosomes has been discovered only in the Mountain Altai populations. This region differs from the remaining A. peninsulae dwelling localities by pollution with unspent liquid propellant (UDMH, heptyl). It is assumed that the variants of mouse B chromosome system in the studied A. peninsulae populations in the overall habitation area over long-term periods are likely to remain relatively stable and that their variation is controlled by homeostatic processes. Disturbance of these processes, in particular, due to anthropogenic load, can disrupt the cyclic pattern of increase and decrease in the number of A. peninsulae B-chromosomes in individual years.
Russian Journal of Genetics – Springer Journals
Published: Sep 25, 2008
It’s your single place to instantly
discover and read the research
that matters to you.
Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.
All for just $49/month
Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly
Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.
Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.
Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.
All the latest content is available, no embargo periods.
“Hi guys, I cannot tell you how much I love this resource. Incredible. I really believe you've hit the nail on the head with this site in regards to solving the research-purchase issue.”Daniel C.
“Whoa! It’s like Spotify but for academic articles.”@Phil_Robichaud
“I must say, @deepdyve is a fabulous solution to the independent researcher's problem of #access to #information.”@deepthiw
“My last article couldn't be possible without the platform @deepdyve that makes journal papers cheaper.”@JoseServera