From: Charles Plessy Date: Fri, 6 Oct 2023 13:43:03 +0000 (+0900) Subject: Dans le bus X-Git-Url: https://source.charles.plessy.org/?a=commitdiff_plain;h=2677671bd8bf1e18fbac14cfc2e27407d25543e7;p=source.git Dans le bus --- diff --git a/biblio/29325078.mdwn b/biblio/29325078.mdwn new file mode 100644 index 00000000..50ac319b --- /dev/null +++ b/biblio/29325078.mdwn @@ -0,0 +1,21 @@ +[[!meta title="Genomic basis of recombination suppression in the hybrid between Caenorhabditis briggsae and C. nigoni."]] +[[!tag nematode]] + +Ren X, Li R, Wei X, Bi Y, Ho VWS, Ding Q, Xu Z, Zhang Z, Hsieh CL, Young A, Zeng J, Liu X, Zhao Z. + +Nucleic Acids Res. 2018 Feb 16;46(3):1295-1307. doi:10.1093/nar/gkx1277 + +Genomic basis of recombination suppression in the hybrid between _Caenorhabditis briggsae_ and _C. nigoni_. + +[[!pmid 29325078 desc="”the coding sequences of [the] one-to-one orthologs +exhibited only around a 90% identity, and most of [the] introns and intergenic +regions were not alignable” “we produced [15,157] one-to-one orthologous gene +pairs between C. briggsae and C. nigoni.” “we extracted all of the best hits +between the two genomes that were >1 kb in size [and] observed over 400 +interchromosomal translocations” “[we produced] produce homozygous viable +introgressions representing ∼28% of the C. briggsae genome” “We observed a +significantly higher [alignment score] in recombination sites than in genomic +background” “Nearly half of the reduced genome in C. briggsae could be +explained by its lost repeats relative to the C. nigoni genome. These +differences in genome size and repeat content are expected to create gaps in +the sequence alignment or make the syntenic sequences not alignable.”"]] diff --git a/tags/nematode.mdwn b/tags/nematode.mdwn index 626da130..6d3c50ef 100644 --- a/tags/nematode.mdwn +++ b/tags/nematode.mdwn @@ -65,4 +65,8 @@ Nematode chromosomes have been called “Nigon elements” by [[Tandonnet and co of neighboring genes are rearranged in the selfers compared with 15.0% in the outcrossers)” ([[Stevens and coll., 2022|biblio/35348662]]). + - When comparing _C. briggsae_ and _C. nigoni_, most of the introns and + intergenic regions are not alignable. The aligned regions are ~90% + identical ([[Ren and coll., 2018|biblio/29325078]]). + [[!inline pages="tagged(nematode)" limit=0]]