24 research outputs found
Gene Deletion in Barley Mediated by LTR-retrotransposon BARE
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
Π ΠΎΠ»Ρ Ρ Π΅ΠΌΠΎΠΊΠΈΠ½ΠΎΠ² Π² ΡΠ΅ΠΊΡΡΡΠΈΡΠΎΠ²Π°Π½ΠΈΠΈ ΠΊΠ»Π΅ΡΠΎΠΊ-ΠΏΡΠ΅Π΄ΡΠ΅ΡΡΠ²Π΅Π½Π½ΠΈΠΊΠΎΠ² Π² ΠΎΠΏΡΡ ΠΎΠ»Π΅Π²ΡΡ Π½ΠΈΡΡ ΠΏΡΠΈ ΡΠ°ΠΊΠ΅ ΠΌΠΎΠ»ΠΎΡΠ½ΠΎΠΉ ΠΆΠ΅Π»Π΅Π·Ρ
Π Π°Π·Π²ΠΈΡΠΈΠ΅ ΠΏΠ΅ΡΠ²ΠΈΡΠ½ΠΎΠΉ ΠΎΠΏΡΡ
ΠΎΠ»ΠΈ ΡΠΎΠΏΡΠΎΠ²ΠΎΠΆΠ΄Π°Π΅ΡΡΡ ΡΠΎΡΠΌΠΈΡΠΎΠ²Π°Π½ΠΈΠ΅ΠΌ ΠΎΠΏΡΡ
ΠΎΠ»Π΅Π²ΠΎΠΉ Π½ΠΈΡΠΈ, ΠΊΠΎΡΠΎΡΠ°ΡΡΠΎΠ·Π΄Π°Π΅Ρ Π±Π»Π°Π³ΠΎΠΏΡΠΈΡΡΠ½ΡΠ΅ ΡΡΠ»ΠΎΠ²ΠΈΡ Π΄Π»Ρ Π²ΡΠΆΠΈΠ²Π°Π½ΠΈΡ ΠΈ ΠΏΡΠΎΠ»ΠΈΡΠ΅ΡΠ°ΡΠΈΠΈ ΡΠ°ΠΊΠΎΠ²ΡΡ
ΠΊΠ»Π΅ΡΠΎΠΊ. ΠΠ΄Π½ΠΈΠΌ ΠΈΠ· ΠΊΠ»ΡΡΠ΅Π²ΡΡ
ΡΠ»Π΅ΠΌΠ΅Π½ΡΠΎΠ² ΡΠ²ΠΎΠ»ΡΡΠΈΠΈ ΠΎΠΏΡΡ
ΠΎΠ»Π΅Π²ΠΎΠΉ Π½ΠΈΡΠΈ ΡΠ²Π»ΡΠ΅ΡΡΡ ΡΠ΅ΠΊΡΡΡΠΈΡΠΎΠ²Π°Π½ΠΈΠ΅ ΠΊΠΎΡΡΠ½ΠΎΠΌΠΎΠ·Π³ΠΎΠ²ΡΡ
ΠΊΠ»Π΅ΡΠΎΠΊ-ΠΏΡΠ΅Π΄ΡΠ΅ΡΡΠ²Π΅Π½Π½ΠΈΠΊΠΎΠ², Π²ΠΊΠ»ΡΡΠ°Ρ ΠΊΠ»Π΅ΡΠΊΠΈ-ΠΏΡΠ΅Π΄ΡΠ΅ΡΡΠ²Π΅Π½Π½ΠΈΠΊΠΈ ΠΌΠ°ΠΊΡΠΎΡΠ°Π³ΠΎΠ², ΠΌΠ΅Π·Π΅Π½Ρ
ΠΈΠΌΠ°Π»ΡΠ½ΡΠ΅ ΡΡΠΎΠ»ΠΎΠ²ΡΠ΅ ΠΊΠ»Π΅ΡΠΊΠΈ, ΡΠ½Π΄ΠΎΡΠ΅Π»ΠΈΠ°Π»ΡΠ½ΡΠ΅ ΠΈ Π³Π΅ΠΌΠΎΠΏΠΎΡΡΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΠΊΠ»Π΅ΡΠΊΠΈ-ΠΏΡΠ΅Π΄ΡΠ΅ΡΡΠ²Π΅Π½Π½ΠΈΠΊΠΈ. ΠΠΈΠ³ΡΠ°ΡΠΈΡ ΡΠΏΠΎΠΌΡΠ½ΡΡΡΡ
ΠΊΠ»Π΅ΡΠΎΠΊ Π² ΠΎΠΏΡΡ
ΠΎΠ»Ρ ΡΠ΅Π³ΡΠ»ΠΈΡΡΠ΅ΡΡΡ ΡΡΠ΄ΠΎΠΌ Ρ
Π΅ΠΌΠΎΠΊΠΈΠ½ΠΎΠ², Π² ΡΠΎΠΌ ΡΠΈΡΠ»Π΅ CCL2, CXCL12, MSP (macrophage stimulating protein) ΠΈ MIF (macrophage inhibitory factor). Π¦Π΅Π»ΡΡ Π½Π°ΡΡΠΎΡΡΠ΅Π³ΠΎ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ ΡΠ²Π»ΡΠ»ΠΎΡΡ ΠΈΠ·ΡΡΠ΅Π½ΠΈΠ΅ ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠΎΠ² ΠΎΠΏΡΡ
ΠΎΠ»Π΅Π²ΠΎΠΉ Π½ΠΈΡΠΈ ΠΏΡΠΈ ΡΠ°ΠΊΠ΅ ΠΌΠΎΠ»ΠΎΡΠ½ΠΎΠΉ ΠΆΠ΅Π»Π΅Π·Ρ. ΠΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠ΅ Π²ΠΊΠ»ΡΡΠ°Π»ΠΎ 24 Π±ΠΎΠ»ΡΠ½ΡΡ
Ρ ΠΈΠ½Π²Π°Π·ΠΈΠ²Π½ΠΎΠΉ ΠΊΠ°ΡΡΠΈΠ½ΠΎΠΌΠΎΠΉ Π½Π΅ΡΠΏΠ΅ΡΠΈΡΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΡΠΈΠΏΠ° ΠΌΠΎΠ»ΠΎΡΠ½ΠΎΠΉ ΠΆΠ΅Π»Π΅Π·Ρ. Π ΡΡΡΠΏΠ΅Π½Π·ΠΈΠΈ ΠΎΠΏΡΡ
ΠΎΠ»Π΅Π²ΡΡ
ΠΊΠ»Π΅ΡΠΎΠΊ ΠΌΠ΅ΡΠΎΠ΄ΠΎΠΌ ΠΏΡΠΎΡΠΎΡΠ½ΠΎΠΉ ΡΠΈΡΠΎΡΠ»ΡΠΎΡΠΈΠΌΠ΅ΡΡΠΈΠΈ ΠΎΠΏΡΠ΅Π΄Π΅Π»ΡΠ»ΠΈ ΡΠΎΠ΄Π΅ΡΠΆΠ°Π½ΠΈΠ΅ ΠΊΠ»Π΅ΡΠΎΠΊ-ΠΏΡΠ΅Π΄ΡΠ΅ΡΡΠ²Π΅Π½Π½ΠΈΠΊΠΎΠ². ΠΠΎΠ½ΡΠ΅Π½ΡΡΠ°ΡΠΈΡ Ρ
Π΅ΠΌΠΎΠΊΠΈΠ½ΠΎΠ² CCL2, CXCL12, MSP ΠΈ MIF Π² Π²Π΅Π½ΠΎΠ·Π½ΠΎΠΉ ΠΊΡΠΎΠ²ΠΈ Π±ΠΎΠ»ΡΠ½ΡΡ
ΠΎΡΠ΅Π½ΠΈΠ²Π°Π»ΠΈ Ρ ΠΏΠΎΠΌΠΎΡΡΡ ΡΠ²Π΅ΡΠ΄ΠΎΡΠ°Π·Π½ΠΎΠ³ΠΎ ΠΈΠΌΠΌΡΠ½ΠΎΡΠ΅ΡΠΌΠ΅Π½ΡΠ½ΠΎΠ³ΠΎ Π°Π½Π°Π»ΠΈΠ·Π°. ΠΠΎΡΡΠΎΠ²Π΅ΡΠ½ΡΡ
ΡΠ°Π·Π»ΠΈΡΠΈΠΉ Π² ΡΠΎΠ΄Π΅ΡΠΆΠ°Π½ΠΈΠΈ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½Π½ΡΡ
ΠΊΠ»Π΅ΡΠΎΡΠ½ΡΡ
ΠΏΠΎΠΏΡΠ»ΡΡΠΈΠΉ, Π° ΡΠ°ΠΊΠΆΠ΅ ΠΊΠΎΠ½ΡΠ΅Π½ΡΡΠ°ΡΠΈΠΈ ΠΈΠ·ΡΡΠ΅Π½Π½ΡΡ
Ρ
Π΅ΠΌΠΎΠΊΠΈΠ½ΠΎΠ² ΠΌΠ΅ΠΆΠ΄Ρ ΠΏΠ°ΡΠΈΠ΅Π½ΡΠ°ΠΌΠΈ, ΡΠ°Π·Π΄Π΅Π»Π΅Π½Π½ΡΠΌΠΈ Π½Π° Π³ΡΡΠΏΠΏΡ Π²Π·Π°Π²ΠΈΡΠΈΠΌΠΎΡΡΠΈ ΠΎΡ Π½Π°Π»ΠΈΡΠΈΡ ΠΈΠ»ΠΈ ΠΎΡΡΡΡΡΡΠ²ΠΈΡ Π»ΠΈΠΌΡΠΎΠ³Π΅Π½Π½ΡΡ
ΠΌΠ΅ΡΠ°ΡΡΠ°Π·ΠΎΠ² ΠΈ Π½Π΅ΠΎΠ°Π΄ΡΡΠ²Π°Π½ΡΠ½ΠΎΠ³ΠΎ Π»Π΅ΡΠ΅Π½ΠΈΡ, ΠΎΠ±Π½Π°ΡΡΠΆΠ΅Π½ΠΎ Π½Π΅ Π±ΡΠ»ΠΎ. Π ΡΠΎ ΠΆΠ΅ Π²ΡΠ΅ΠΌΡ, ΡΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½Π° ΠΏΡΡΠΌΠ°Ρ ΠΊΠΎΡΡΠ΅Π»ΡΡΠΈΠΎΠ½Π½Π°Ρ ΡΠ²ΡΠ·Ρ ΠΌΠ΅ΠΆΠ΄Ρ ΡΠΎΠ΄Π΅ΡΠΆΠ°Π½ΠΈΠ΅ΠΌ Π³Π΅ΠΌΠΎΠΏΠΎΡΡΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΊΠ»Π΅ΡΠΎΠΊ-ΠΏΡΠ΅Π΄ΡΠ΅ΡΡΠ²Π΅Π½Π½ΠΈΠΊΠΎΠ² Π² ΠΎΠΏΡΡ
ΠΎΠ»ΠΈ ΠΈ ΠΊΠΎΠ½ΡΠ΅Π½ΡΡΠ°ΡΠΈΠ΅ΠΉ CXCL12 ΠΈ MIF Π² ΠΊΡΠΎΠ²ΠΈ
PTCH1, a receptor of Hedgehog signaling pathway, is correlated with metastatic potential of colorectal cancer
RET/PTC rearrangement occurring in primary peritoneal carcinoma.
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