PMID- 23614816
OWN - NLM
STAT- MEDLINE
DCOM- 20140115
LR  - 20210418
IS  - 1469-8137 (Electronic)
IS  - 0028-646X (Linking)
VI  - 199
IP  - 2
DP  - 2013 Jul
TI  - High-copy sequences reveal distinct evolution of the rye B chromosome.
PG  - 550-558
LID - 10.1111/nph.12289 [doi]
AB  - B chromosomes (Bs) are supernumerary chromosomes that vary in number among 
      individuals of the same species. Because of their dispensable nature, their 
      non-Mendelian inheritance and their origin from A chromosomes (As), one might 
      assume that Bs followed a different evolutionary pathway from As, this being 
      reflected in differences in their high-copy DNA constitution. We provide detailed 
      insight into the composition and distribution of rye (Secale cereale) B-located 
      high-copy sequences. A- and B-specific high-copy sequences were identified in 
      silico. Mobile elements and satellite sequences were verified by fluorescence in 
      situ hybridization (FISH). Replication was analyzed via EdU incorporation. 
      Although most repeats are similarly distributed along As and Bs, several 
      transposons are either amplified or depleted on the B. An accumulation of 
      B-enriched satellites was found mostly in the nondisjunction control region of 
      the B, which is transcriptionally active and late-replicating. All B-enriched 
      sequences are not unique to the B but are also present in other Secale species, 
      suggesting the origin of the B from As of the same genus. Our findings highlight 
      the differences between As and Bs. Although Bs originated from As, they have 
      since taken a separate evolutionary pathway.
CI  - (c) 2013 The Authors. New Phytologist (c) 2013 New Phytologist Trust.
FAU - Klemme, Sonja
AU  - Klemme S
AD  - Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Corrensstrasse 
      3, Gatersleben, 06466, Germany.
FAU - Banaei-Moghaddam, Ali Mohammad
AU  - Banaei-Moghaddam AM
AD  - Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Corrensstrasse 
      3, Gatersleben, 06466, Germany.
FAU - Macas, Jiri
AU  - Macas J
AD  - Biology Centre ASCR, Institute of Plant Molecular Biology, Branisovska 31/1160, 
      Ceske Budejovice, 370 05, Czech Republic.
FAU - Wicker, Thomas
AU  - Wicker T
AD  - University of Zurich, Institute of Plant Biology, Zurich, 8008, Switzerland.
FAU - Novak, Petr
AU  - Novak P
AD  - Biology Centre ASCR, Institute of Plant Molecular Biology, Branisovska 31/1160, 
      Ceske Budejovice, 370 05, Czech Republic.
FAU - Houben, Andreas
AU  - Houben A
AD  - Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Corrensstrasse 
      3, Gatersleben, 06466, Germany.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20130424
PL  - England
TA  - New Phytol
JT  - The New phytologist
JID - 9882884
RN  - 0 (DNA Transposable Elements)
RN  - 0 (Genetic Markers)
SB  - IM
MH  - Base Sequence
MH  - Chromosomes, Plant/*genetics
MH  - DNA Replication/genetics
MH  - DNA Transposable Elements/genetics
MH  - *Evolution, Molecular
MH  - *Gene Dosage
MH  - Genetic Markers
MH  - Models, Genetic
MH  - Nondisjunction, Genetic
MH  - Secale/*genetics
MH  - Transcription, Genetic
MH  - Triticum/genetics
EDAT- 2013/04/26 06:00
MHDA- 2014/01/16 06:00
CRDT- 2013/04/26 06:00
PHST- 2013/02/18 00:00 [received]
PHST- 2013/03/16 00:00 [accepted]
PHST- 2013/04/26 06:00 [entrez]
PHST- 2013/04/26 06:00 [pubmed]
PHST- 2014/01/16 06:00 [medline]
AID - 10.1111/nph.12289 [doi]
PST - ppublish
SO  - New Phytol. 2013 Jul;199(2):550-558. doi: 10.1111/nph.12289. Epub 2013 Apr 24.