Distribution of similar self-incompatibility (S) haplotypes in different genera, Raphanus and Brassica
Distribution of similar self-incompatibility (S) haplotypes in different genera, Raphanus and Brassica
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DOI：
10.1007/s00497-004-0211-2
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发表时间：
2004-05-01
影响因子：
--
通讯作者：
Nishio, T
中科院分区：
文献类型：
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作者：
Okamoto, S;Sato, Y;Nishio, T
测定了莴苣（Raphanus sativus） 10个SP11和9个SRK等位基因的核苷酸序列，并与油菜（芸苔）SP11和SRK等位基因的氨基酸序列进行了比较。红参ⅰ类sp11序列的氨基酸序列一致性平均约为30%，最高达52.2%；ⅰ类SRK S结构域的氨基酸序列一致性平均为77.0%，范围在70.8% ~ 83.9%之间。这些值与甘蓝和油菜的SP11和SRK值相当。结果表明，sativus S-21的SP11与B. rapa S-9的SP11高度相似（氨基酸同源性为89.5%），SRK与B. rapa S-9的SRK相似（氨基酸同源性为91.0%）。sativus S-19的SP11和SRK与甘蓝S-20的SP11和SRK相似。这些SP11和SRK等位基因的相似性表明，这些S单倍型对起源于同一祖先的S单倍型。
The nucleotide sequences of ten SP11 and nine SRK alleles in Raphanus sativus were determined, and deduced amino acid sequences were compared with those of Brassica SP11 and SRK. The amino acid sequence identity of class-I SP11s in R. sativus was about 30% on average, the highest being 52.2%, while that of the S domain of class-I SRK was 77.0% on average and ranged from 70.8% to 83.9%. These values were comparable to those of SP11 and SRK in Brassica oleracea and B. rapa. SP11 of R. sativus S-21 was found to be highly similar to SP11 of B. rapa S-9 (89.5% amino acid identity), and SRK of R. sativus S-21 was similar to SRK of B. rapa S-9 (91.0%). SP11 and SRK of R. sativus S-19 were also similar to SP11 and SRK of B. oleracea S-20, respectively. These similarities of both SP11 and SRK alleles between R. sativus and Brassica suggest that these S haplotype pairs originated from the same ancestral S haplotypes.