24 research outputs found

    Gene Deletion in Barley Mediated by LTR-retrotransposon BARE

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    A poly-row branched spike (prbs) barley mutant was obtained from soaking a two-rowed barley inflorescence in a solution of maize genomic DNA. Positional cloning and sequencing demonstrated that the prbs mutant resulted from a 28 kb deletion including the inflorescence architecture gene HvRA2. Sequence annotation revealed that the HvRA2 gene is flanked by two LTR (long terminal repeat) retrotransposons (BARE) sharing 89% sequence identity. A recombination between the integrase (IN) gene regions of the two BARE copies resulted in the formation of an intact BARE and loss of HvRA2. No maize DNA was detected in the recombination region although the flanking sequences of HvRA2 gene showed over 73% of sequence identity with repetitive sequences on 10 maize chromosomes. It is still unknown whether the interaction of retrotransposons between barley and maize has resulted in the recombination observed in the present study.Peer reviewe

    Роль Ρ…Π΅ΠΌΠΎΠΊΠΈΠ½ΠΎΠ² Π² Ρ€Π΅ΠΊΡ€ΡƒΡ‚ΠΈΡ€ΠΎΠ²Π°Π½ΠΈΠΈ ΠΊΠ»Π΅Ρ‚ΠΎΠΊ-ΠΏΡ€Π΅Π΄ΡˆΠ΅ΡΡ‚Π²Π΅Π½Π½ΠΈΠΊΠΎΠ² Π² ΠΎΠΏΡƒΡ…ΠΎΠ»Π΅Π²ΡƒΡŽ Π½ΠΈΡˆΡƒ ΠΏΡ€ΠΈ Ρ€Π°ΠΊΠ΅ ΠΌΠΎΠ»ΠΎΡ‡Π½ΠΎΠΉ ΠΆΠ΅Π»Π΅Π·Ρ‹

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    Π Π°Π·Π²ΠΈΡ‚ΠΈΠ΅ ΠΏΠ΅Ρ€Π²ΠΈΡ‡Π½ΠΎΠΉ ΠΎΠΏΡƒΡ…ΠΎΠ»ΠΈ сопровоТдаСтся Ρ„ΠΎΡ€ΠΌΠΈΡ€ΠΎΠ²Π°Π½ΠΈΠ΅ΠΌ ΠΎΠΏΡƒΡ…ΠΎΠ»Π΅Π²ΠΎΠΉ ниши, котораясоздаСт благоприятныС условия для выТивания ΠΈ ΠΏΡ€ΠΎΠ»ΠΈΡ„Π΅Ρ€Π°Ρ†ΠΈΠΈ Ρ€Π°ΠΊΠΎΠ²Ρ‹Ρ… ΠΊΠ»Π΅Ρ‚ΠΎΠΊ. Одним ΠΈΠ· ΠΊΠ»ΡŽΡ‡Π΅Π²Ρ‹Ρ… элСмСнтов ΡΠ²ΠΎΠ»ΡŽΡ†ΠΈΠΈ ΠΎΠΏΡƒΡ…ΠΎΠ»Π΅Π²ΠΎΠΉ ниши являСтся Ρ€Π΅ΠΊΡ€ΡƒΡ‚ΠΈΡ€ΠΎΠ²Π°Π½ΠΈΠ΅ костномозговых ΠΊΠ»Π΅Ρ‚ΠΎΠΊ-ΠΏΡ€Π΅Π΄ΡˆΠ΅ΡΡ‚Π²Π΅Π½Π½ΠΈΠΊΠΎΠ², Π²ΠΊΠ»ΡŽΡ‡Π°Ρ ΠΊΠ»Π΅Ρ‚ΠΊΠΈ-ΠΏΡ€Π΅Π΄ΡˆΠ΅ΡΡ‚Π²Π΅Π½Π½ΠΈΠΊΠΈ ΠΌΠ°ΠΊΡ€ΠΎΡ„Π°Π³ΠΎΠ², ΠΌΠ΅Π·Π΅Π½Ρ…ΠΈΠΌΠ°Π»ΡŒΠ½Ρ‹Π΅ столовыС ΠΊΠ»Π΅Ρ‚ΠΊΠΈ, ΡΠ½Π΄ΠΎΡ‚Π΅Π»ΠΈΠ°Π»ΡŒΠ½Ρ‹Π΅ ΠΈ гСмопоэтичСскиС ΠΊΠ»Π΅Ρ‚ΠΊΠΈ-ΠΏΡ€Π΅Π΄ΡˆΠ΅ΡΡ‚Π²Π΅Π½Π½ΠΈΠΊΠΈ. ΠœΠΈΠ³Ρ€Π°Ρ†ΠΈΡ упомянутых ΠΊΠ»Π΅Ρ‚ΠΎΠΊ Π² ΠΎΠΏΡƒΡ…ΠΎΠ»ΡŒ рСгулируСтся рядом Ρ…Π΅ΠΌΠΎΠΊΠΈΠ½ΠΎΠ², Π² Ρ‚ΠΎΠΌ числС CCL2, CXCL12, MSP (macrophage stimulating protein) ΠΈ MIF (macrophage inhibitory factor). ЦСлью настоящСго исслСдования являлось ΠΈΠ·ΡƒΡ‡Π΅Π½ΠΈΠ΅ ΠΏΠ°Ρ€Π°ΠΌΠ΅Ρ‚Ρ€ΠΎΠ² ΠΎΠΏΡƒΡ…ΠΎΠ»Π΅Π²ΠΎΠΉ ниши ΠΏΡ€ΠΈ Ρ€Π°ΠΊΠ΅ ΠΌΠΎΠ»ΠΎΡ‡Π½ΠΎΠΉ ΠΆΠ΅Π»Π΅Π·Ρ‹. ИсслСдованиС Π²ΠΊΠ»ΡŽΡ‡Π°Π»ΠΎ 24 Π±ΠΎΠ»ΡŒΠ½Ρ‹Ρ… с ΠΈΠ½Π²Π°Π·ΠΈΠ²Π½ΠΎΠΉ ΠΊΠ°Ρ€Ρ†ΠΈΠ½ΠΎΠΌΠΎΠΉ нСспСцифичСского Ρ‚ΠΈΠΏΠ° ΠΌΠΎΠ»ΠΎΡ‡Π½ΠΎΠΉ ΠΆΠ΅Π»Π΅Π·Ρ‹. Π’ суспСнзии ΠΎΠΏΡƒΡ…ΠΎΠ»Π΅Π²Ρ‹Ρ… ΠΊΠ»Π΅Ρ‚ΠΎΠΊ ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΎΠΌ ΠΏΡ€ΠΎΡ‚ΠΎΡ‡Π½ΠΎΠΉ Ρ†ΠΈΡ‚ΠΎΡ„Π»ΡŽΠΎΡ€ΠΈΠΌΠ΅Ρ‚Ρ€ΠΈΠΈ опрСдСляли содСрТаниС ΠΊΠ»Π΅Ρ‚ΠΎΠΊ-ΠΏΡ€Π΅Π΄ΡˆΠ΅ΡΡ‚Π²Π΅Π½Π½ΠΈΠΊΠΎΠ². ΠšΠΎΠ½Ρ†Π΅Π½Ρ‚Ρ€Π°Ρ†ΠΈΡŽ Ρ…Π΅ΠΌΠΎΠΊΠΈΠ½ΠΎΠ² CCL2, CXCL12, MSP ΠΈ MIF Π² Π²Π΅Π½ΠΎΠ·Π½ΠΎΠΉ ΠΊΡ€ΠΎΠ²ΠΈ Π±ΠΎΠ»ΡŒΠ½Ρ‹Ρ… ΠΎΡ†Π΅Π½ΠΈΠ²Π°Π»ΠΈ с ΠΏΠΎΠΌΠΎΡ‰ΡŒΡŽ Ρ‚Π²Π΅Ρ€Π΄ΠΎΡ„Π°Π·Π½ΠΎΠ³ΠΎ ΠΈΠΌΠΌΡƒΠ½ΠΎΡ„Π΅Ρ€ΠΌΠ΅Π½Ρ‚Π½ΠΎΠ³ΠΎ Π°Π½Π°Π»ΠΈΠ·Π°. ДостовСрных Ρ€Π°Π·Π»ΠΈΡ‡ΠΈΠΉ Π² содСрТании исслСдованных ΠΊΠ»Π΅Ρ‚ΠΎΡ‡Π½Ρ‹Ρ… популяций, Π° Ρ‚Π°ΠΊΠΆΠ΅ ΠΊΠΎΠ½Ρ†Π΅Π½Ρ‚Ρ€Π°Ρ†ΠΈΠΈ ΠΈΠ·ΡƒΡ‡Π΅Π½Π½Ρ‹Ρ… Ρ…Π΅ΠΌΠΎΠΊΠΈΠ½ΠΎΠ² ΠΌΠ΅ΠΆΠ΄Ρƒ ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚Π°ΠΌΠΈ, Ρ€Π°Π·Π΄Π΅Π»Π΅Π½Π½Ρ‹ΠΌΠΈ Π½Π° Π³Ρ€ΡƒΠΏΠΏΡ‹ взависимости ΠΎΡ‚ наличия ΠΈΠ»ΠΈ отсутствия Π»ΠΈΠΌΡ„ΠΎΠ³Π΅Π½Π½Ρ‹Ρ… мСтастазов ΠΈ Π½Π΅ΠΎΠ°Π΄ΡŠΡŽΠ²Π°Π½Ρ‚Π½ΠΎΠ³ΠΎ лСчСния, ΠΎΠ±Π½Π°Ρ€ΡƒΠΆΠ΅Π½ΠΎ Π½Π΅ Π±Ρ‹Π»ΠΎ. Π’ Ρ‚ΠΎ ΠΆΠ΅ врСмя, установлСна прямая коррСляционная связь ΠΌΠ΅ΠΆΠ΄Ρƒ содСрТаниСм гСмопоэтичСских ΠΊΠ»Π΅Ρ‚ΠΎΠΊ-ΠΏΡ€Π΅Π΄ΡˆΠ΅ΡΡ‚Π²Π΅Π½Π½ΠΈΠΊΠΎΠ² Π² ΠΎΠΏΡƒΡ…ΠΎΠ»ΠΈ ΠΈ ΠΊΠΎΠ½Ρ†Π΅Π½Ρ‚Ρ€Π°Ρ†ΠΈΠ΅ΠΉ CXCL12 ΠΈ MIF Π² ΠΊΡ€ΠΎΠ²ΠΈ

    Position: Synergetic effects of Software and Hardware Parameters on the LSM system

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    DOTA: Device-Oriented Tuning Advisor for LSM-based Key Value Stores

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    RET/PTC rearrangement occurring in primary peritoneal carcinoma.

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    RET/PTC rearrangements are initiating events in the development of a significant proportion of papillary thyroid carcinomas. Activated RET/PTC mutations are thought to be restricted to thyroid disease, but this study proposes that these events may also occur in nonthyroid tumors. A total of 57 nonthyroid papillary tumors were examined for RET/PTC rearrangements using interphase fluorescence in situ hybridization, Taqman reverse transcriptase polymerase chain reaction, and immunohistochemistry. Taqman single nucleotide polymorphism detection was used to analyze for expression of mutated BRAF T1799A. In all, 20% (3/15) of primary peritoneal carcinoma had detectable RET/PTC1 rearrangements by all 3 methodologies. A further case of similar histotype had an alternate RET/ PTC rearrangement. No RET/PTC1 rearrangements were detected in the remaining tumor cohort. All 57 tumors were homozygous for wild-type BRAF. The results indicate that RET/PTC rearrangements occur in a small subset of nonthyroid papillary tumors. These rearrangements may not be directly implicated in tumor growth; rather representing "passenger" mutations reflecting RET instability in secondary tumor subclones
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