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When Hevea seedlings were subjected in 0.5 M of NaCl, the TDFREP241 mRNA level was increased for 3 times
at 24 hours. Similar result was obtained when seedlings were treated with polyethylene glycol. The expression
pattern of TDFREP241 in twenty-four month old Hevea trees was significantly higher in latex of frequency
tapping (one tapping per day) than that of normal tapping (one tapping per 3 days). In eighteen month old of
various Hevea clones showed the strong correlation between TDFREP241 expression and yield capacity of each
clone. These results indicated that the TDFREP241 might be involved in response to both biotic and abiotic
stresses in Hevea trees.
Keywords : Ankyrin-repeat domain zinc finger protein (KR1), Hevea brasiliensis, Gene expression
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¥µŠ¡µ¦µµ¥¡´œ›»r Ä®oŸ¨Ÿ¨· ˜œÊÎ µ¥µŠ¼ŠÂ¨³˜Éε —oª¥Áš‡œ· ‡ cDNA-AFLP µ¤µ¦™‡´—Á¨º °„ transcription-derived
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TDFREP241 ¤¸¨Îµ—´Á homology „´ ¥¸œ ankyrin-repeat domain zinc finger protein (KR1 ) (Suwanmanee et al.,
2007) 宦´Ãž¦˜¸œ ankyrin repeat (KR1) Áž}œÃž¦˜¸ œš¸ÉšÎ µ®œoµš¸ÉÁž}œ transcription factor ¤¸šµšÎµ‡´Äœ„µ¦
˜°œ°Š˜n°£µª³‡ªµ¤Á‡¦¸¥— (stress) °Š¡ºÁœºÉ°Š‹µ„£µª³Âª—¨o°¤Å¤nÁ®¤µ³¤ š´ÊŠ‡ªµ¤Á‡¦¸¥—š¸É Á„·—‹µ„
·ÉŠÅ¤n¤¸¸ª·˜ (abiotic stress) ¨³‹µ„·ÉŠ¤¸ ¸ª·˜ (biotic stress) ‹µ„¦µ¥Šµœ„µ¦«¹„¬µÄœ Capsicum annuum (Seong et
al ., 2007a) ¨³ Artemisia desertorum (Yang et al., 2008) ¡ªnµ¥¸œ KRI ¤¸„µ¦Â—Š°°„¼Š ¹ÊœÁ¤ºÉ° µ—œÊÎ µÂ¨³¤¸
„µ¦‡» „‡µ¤ °ŠÁºÊ°Ã¦‡ „µ¦«¹„¬µ„µ¦™nµ¥Ã°œ¥¸œ Capsicum annuum ankyrin-repeat domain C3H1 zinc finger
protein (CaKR1) Ä®o„´¤³Á º°Áš«¡ªnµ¤³Á º°Áš«š¸É ŗo¦´¥¸œµ¤µ¦™šœÂ¨oŠÂ¨³˜oµœšµœÃ¦‡Á¡·É¤ ¹Êœ (Seong et
al., 2007b) Šµœª·‹´ ¥œ¸Êŗo«¹„¬µ„µ¦Â—Š°°„ °Š TDFREP241 ĜÁœºÊ°Á¥ºÉ°˜n µŠÇ °Š¥µŠ¡µ¦µ ¦ª¤š´ÊŠŸ¨ °Š
‡ªµ¤Á‡¦¸¥—‹µ„„µ¦„¦¸ — ‡ªµ¤Á‡È¤Â¨³„µ¦ µ—œÊÎ µ˜n°„µ¦Â—Š°°„ °Š TDFREP241 Ĝ¥µŠ¡µ¦µ Ž¹ÉŠÁž} œ o°¤¼¨š¸É
ε‡´˜n°„µ¦Äož¦³„°„µ¦¡´•œµ TDFREP241 Şčo‡´—Á¨º°„®¦º°ž¦´ž¦»Š¡´œ›»r¥µŠ¡µ¦µš¸É Ä®oŸ¨Ÿ¨· ˜¼Š šœÂ¨oŠ
¨³˜o µœšµœÃ¦‡˜n°Åž