PAPAYA RINGSPOT POTYVIRUS - ISOLATE VARIABILITY AND THE ORIGIN OF PRSV TYPE-P (AUSTRALIA)
PAPAYA RINGSPOT POTYVIRUS - ISOLATE VARIABILITY AND THE ORIGIN OF PRSV TYPE-P (AUSTRALIA)
复制标题
DOI：
10.1099/0022-1317-75-12-3547
复制
发表时间：
1994-12-01
影响因子：
3.8
通讯作者：
DALE, JL
中科院分区：
文献类型：
--
作者：
BATESON, MF;HENDERSON, J;DALE, JL
我们已经测序了9株番木瓜环斑病毒（PRSV），包括6个澳大利亚和3个亚洲分离株的外壳蛋白基因，并与4个以前报道的PRSV序列进行了比较。在核苷酸水平上，分离株之间的序列变异高达12%。然而，从澳大利亚分离株获得的序列之间没有显着差异，无论它们是否是PRSV P型（葫芦或木瓜感染）或PRSV W型（葫芦感染），这些分离株更密切相关的彼此比任何其他分离株。这些结果表明，PRSV-P，首次记录在澳大利亚于1991年，产生于本地PRSV-W（首次记录在澳大利亚于1978年），而不是被引入。此外，PRSV-P和PRSV-W分离株之间没有一致的序列差异，这显然可以解释它们的宿主范围差异。
We have sequenced the coat protein gene of nine isolates of papaya ringspot virus (PRSV) including six Australian and three Asian isolates and compared these with four previously reported sequences of PRSV. There was up to 12% sequence variation between isolates at the nucleotide level. However, there was no significant difference between the sequences obtained from Australian isolates irrespective of whether they were PRSV type P (cucurbit or papaya infecting) or PRSV type W (cucurbit infecting) and these isolates were more closely related to one another than to any other isolate. These results imply that PRSV-P, first recorded in Australia in 1991, arose locally from PRSV-W (first recorded in Australia in 1978) rather than being introduced. Further, there was no consistent sequence difference between PRSV-P and PRSV-W isolates that would obviously account for their host range difference.