{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,23]],"date-time":"2026-04-23T03:47:40Z","timestamp":1776916060734,"version":"3.51.2"},"reference-count":9,"publisher":"Springer Science and Business Media LLC","issue":"S2","content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["BMC Syst Biol"],"published-print":{"date-parts":[[2012,12]]},"abstract":"<jats:title>Abstract<\/jats:title>\n          <jats:sec>\n            <jats:title>Background<\/jats:title>\n            <jats:p>Current next-generation sequencing (NGS) platforms adopt two types of sequencing mechanisms: by synthesis or by ligation. The former is employed by 454 and Solexa systems, while the latter by SOLiD system. Although the <jats:italic>pros<\/jats:italic> and <jats:italic>cons<\/jats:italic> for each sequencing mechanism have more or less been discussed in a number of occasions, the potential obstacle imposed by palindromic sequences has not yet been addressed.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Methods<\/jats:title>\n            <jats:p>To test the effect of the palindromic region on sequencing efficacy, we clonally amplified a paired-end ditag sequence composed of a 24-bp palindromic sequence flanked by a pair of tags from the <jats:italic>E. coli<\/jats:italic> genome. We used the near homogeneous fragments produced from <jats:italic>Mme<\/jats:italic> I digestion of the amplified clone to generate a sequencing library for SOLiD 5500xl sequencer.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Results<\/jats:title>\n            <jats:p>Results showed that, traditional ABI sequencers, which adopt sequencing-by-synthesis mechanism, were able to read through the palindromic region. However, SOLiD 5500xl was unable to do so. Instead, the palindromic region was read as miscellaneous random sequences. Moreover, readable tag sequence turned obscure ~2 bp prior to the palindromic region.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Conclusions<\/jats:title>\n            <jats:p>Taken together, we demonstrate that SOLiD machines, which employ sequencing-by-ligation mechanism, are unable to read through the palindromic region. On the other hand, sequencing-by-synthesis sequencers had no difficulty in doing so.<\/jats:p>\n          <\/jats:sec>","DOI":"10.1186\/1752-0509-6-s2-s10","type":"journal-article","created":{"date-parts":[[2012,12,12]],"date-time":"2012-12-12T17:16:17Z","timestamp":1355332577000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":36,"title":["Palindromic sequence impedes sequencing-by-ligation mechanism"],"prefix":"10.1186","volume":"6","author":[{"given":"Yu-Feng","family":"Huang","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sheng-Chung","family":"Chen","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yih-Shien","family":"Chiang","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tzu-Han","family":"Chen","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kuo-Ping","family":"Chiu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2012,12,12]]},"reference":[{"issue":"1-2","key":"980_CR1","doi-asserted-by":"publisher","first-page":"10","DOI":"10.1016\/j.jneuroim.2011.12.017","volume":"248","author":"F Casals","year":"2012","unstructured":"Casals F, Idaghdour Y, Hussin J, Awadalla P: Next-generation sequencing approaches for genetic mapping of complex diseases. 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