Electrophoretic variation of the apogamousDryopteris varia group (Dryopteridaceae)
Electrophoretic variation of the apogamousDryopteris varia group (Dryopteridaceae)
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无性生殖鳞毛蕨类群（鳞毛蕨科）的电泳变异
DOI：
10.1007/bf02344233
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发表时间：
1995
影响因子：
2.8
通讯作者：
K. Iwatsuki
中科院分区：
文献类型：
--
作者：
Su;Masahiro Kato;K. Iwatsuki
在变异鳞毛蕨属4种无配子体植物中共检测到35个电泳变异体，其中毕赛鳞毛蕨三倍体14个，神圣鳞毛蕨三倍体7个，变异鳞毛蕨三倍体6个，太平洋鳞毛蕨三倍体3个，无配子体二倍体5个。这些变异体在一些等位基因的不同组合上彼此不同，这些等位基因在一些变异体中是常见的，表明它们是轮回起源的。岛鳞毛蕨的岛生变种（2x）和奇奇西门斯变种（3x）是轮回单态的，表明它们是单一起源的。带型分析表明，D. bissetianaandD.神圣不可侵犯可能起源于混血儿，他们的父母是有性的D。虎耳草的起源，而该种不参与其他无配子三倍体和无配子二倍体的起源。对另一亲本也进行了讨论，并提出了二倍体后代来自D.与D.虎耳草可分化为D. bissetianaandD.神圣不可侵犯
A total of 35 electrophoretic variants were detected in four apogamous species of theDryopteris variagroup: 14 variants inD. bissetianatriploids, 7 inD. sacrosanctatriploids, 6 inD. variatriploids, 3 inD. pacificatriploids, and 5 in apogamous diploids. The variants differed from each other in various combinations of a few alleles which were common in some of the variants, suggesting recurrent origin.Dryopteris insularisvar.insularis(2x) and var.chichisimensis(3x), other members of the group, were electrophoretically monomorphic, suggesting single origin. Banding patterns infer that triploids ofD. bissetianaandD. sacrosanctamay have originated from hybrids whose parent is the sexualD. saxifraga, whereas this species was not involved in the origin of the other apogamous triploids and the apogamous diploids. The other parent was also discussed and we proposed a hypothesis that diploid offsprings fromD. pacificatriploids hybridized withD. saxifragagiving rise to triploids ofD. bissetianaandD. sacrosancta.