The absence of Arabidopsis-type telomeres in Cestrum and
closely related genera Vestia and Sessea (Solanaceae): first
evidence from eudicots

J 2003

The absence of Arabidopsis-type telomeres in Cestrum and closely related genera Vestia and Sessea (Solanaceae): first evidence from eudicots

SÝKOROVÁ, Eva, Kar Yoong LIM, Mark W. CHASE, Sandra KNAPP, Ilia Judith LEITCH et. al.

Základní údaje

Originální název

The absence of Arabidopsis-type telomeres in Cestrum and closely related genera Vestia and Sessea (Solanaceae): first evidence from eudicots

Autoři

SÝKOROVÁ, Eva (203 Česká republika), Kar Yoong LIM (826 Velká Británie a Severní Irsko), Mark W. CHASE (826 Velká Británie a Severní Irsko), Sandra KNAPP (826 Velká Británie a Severní Irsko), Ilia Judith LEITCH (826 Velká Británie a Severní Irsko), Andrew Rowland LEITCH (826 Velká Británie a Severní Irsko) a Jiří FAJKUS (203 Česká republika, garant)

Vydání

Plant Journal, Oxford, Blackwell Publishing Ltd, 2003, 0960-7412

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

Genetika a molekulární biologie

Stát vydavatele

Velká Británie a Severní Irsko

Utajení

není předmětem státního či obchodního tajemství

Impakt faktor

Impact factor: 5.914

Kód RIV

RIV/00216224:14310/03:00008258

Organizační jednotka

Přírodovědecká fakulta

UT WoS

000182455200003

Klíčová slova anglicky

absence of TTTAGGG telomere; dicot; chromosome; FISH

Štítky

absence of TTTAGGG telomere, CHROMOSOME, dicot, FISH

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 30. 6. 2009 12:49, prof. RNDr. Jiří Fajkus, CSc.

Anotace

V originále

Using slot-blot and fluorescent in situ hybridization (FISH), we found no evidence for the presence of the Arabidopsis-type telomeric sequence (TTTAGGG)n at the chromosome termini in any of the Cestrum species we investigated. Probing for the human-type telomere (TTAGGG)n also revealed no signal. However, polymerase chain reaction experiments indicated that there are short lengths of the sequence TTTAGGG dispersed in the genome but that these sequences are almost certainly too short to act as functional telomeres even if they were at the chromosome termini. An analysis of related genera Vestia and Sessea indicates that they too lack the Arabidopsis-type telomere, and the sequences were lost in the common ancestor of these genera. We found that the Cestrum species investigated had particularly large mean chromosome sizes. We discuss whether this is a consequence of alternative telomere end maintenance systems.

Návaznosti

GA204/02/0027, projekt VaV

Název: Molekulární analýza struktury a funkce typických a alternativních telomer u rostlin

MSM 143100008, záměr

Název: Genomy a jejich funkce

Investor: Ministerstvo školství, mládeže a tělovýchovy ČR, Genomy a jejich funkce

Citovat

SÝKOROVÁ, Eva, Kar Yoong LIM, Mark W. CHASE, Sandra KNAPP, Ilia Judith LEITCH, Andrew Rowland LEITCH a Jiří FAJKUS. The absence of Arabidopsis-type telomeres in Cestrum and closely related genera Vestia and Sessea (Solanaceae): first evidence from eudicots. Plant Journal. Oxford: Blackwell Publishing Ltd, 2003, Neuveden, č. 34, s. 283-291. ISSN 0960-7412.

@article{489747,
   author = {Sýkorová, Eva and Lim, Kar Yoong and Chase, Mark W. and Knapp, Sandra and Leitch, Ilia Judith and Leitch, Andrew Rowland and Fajkus, Jiří},
   article_location = {Oxford},
   article_number = {34},
   keywords = {absence of TTTAGGG telomere; dicot; chromosome; FISH},
   language = {eng},
   issn = {0960-7412},
   journal = {Plant Journal},
   title = {The absence of Arabidopsis-type telomeres in Cestrum and closely related genera Vestia and Sessea (Solanaceae): first evidence from eudicots},
   volume = {Neuveden},
   year = {2003}
}

TY  - JOUR
ID  - 489747
AU  - Sýkorová, Eva - Lim, Kar Yoong - Chase, Mark W. - Knapp, Sandra - Leitch, Ilia Judith - Leitch, Andrew Rowland - Fajkus, Jiří
PY  - 2003
TI  - The absence of Arabidopsis-type telomeres in Cestrum and closely related genera Vestia and Sessea (Solanaceae): first evidence from eudicots
JF  - Plant Journal
VL  - Neuveden
IS  - 34
SP  - 283
EP  - 283
PB  - Blackwell Publishing Ltd
SN  - 09607412
KW  - absence of TTTAGGG telomere
KW  - dicot
KW  - chromosome
KW  - FISH
N2  - Using slot-blot and fluorescent in situ hybridization (FISH), we found no evidence for the presence of the Arabidopsis-type telomeric sequence (TTTAGGG)n at the chromosome termini in any of the Cestrum species we investigated. Probing for the human-type telomere (TTAGGG)n also revealed no signal. However, polymerase chain reaction experiments indicated that there are short lengths of the sequence TTTAGGG dispersed in the genome but that these sequences are almost certainly too short to act as functional telomeres even if they were at the chromosome termini. An analysis of related genera Vestia and Sessea indicates that they too lack the Arabidopsis-type telomere, and the sequences were lost in the common ancestor of these genera. We found that the Cestrum species investigated had particularly large mean chromosome sizes. We discuss whether this is a consequence of alternative telomere end maintenance systems.
ER  -

SÝKOROVÁ, Eva, Kar Yoong LIM, Mark W. CHASE, Sandra KNAPP, Ilia Judith LEITCH, Andrew Rowland LEITCH a Jiří FAJKUS. The absence of Arabidopsis-type telomeres in Cestrum and closely related genera Vestia and Sessea (Solanaceae): first evidence from eudicots. \textit{Plant Journal}. Oxford: Blackwell Publishing Ltd, 2003, Neuveden, č.~34, s.~283-291. ISSN~0960-7412.

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