Biosystematics studies on Elymus breviaristatus and Elymus sinosubmuticus (Poaceae: Triticeae).
Biosystematics studies on Elymus breviaristatus and Elymus sinosubmuticus (Poaceae: Triticeae).
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披碱草和披碱草（禾本科：小麦科）的生物系统学研究
DOI：
10.1186/s12870-022-03441-y
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发表时间：
2022-02-01
影响因子：
5.3
通讯作者：
Zhou YH
中科院分区：
文献类型：
--
作者：
Tan L;Huang QX;Song Y;Wu DD;Cheng YR;Zhang CB;Sha LN;Fan X;Kang HY;Wang Y;Zhang HQ;Zhou YH
研究背景短芒披碱草（Elymus breviaristatus）和中华披碱草（Elymus sinosubmuticus）是多年生草本植物，二者不仅形态相似，而且同域分布。对E. Sinosubmuticus的亲缘关系尚未见报道，而E. Sinosubmuticus和E.但短吻法仍有争议。结果在E. nov.的人工杂种花粉母细胞中，中期I期出现了高频率的二价体，平均每个细胞有20.62个二价体。短芒E.观察到了华支气管炎。说明E. Sinosubmuticus与E.短毛状态根据基因组原位杂交结果，我们证实了E. Sinosubmuticus为异源六倍体，基因组构成为StYH。系统发育分析结果也支持该种含有St、Y和H基因组。杂种F1花粉活力为53.90%，结实率为22.46%。结果表明，E. Sinosubmuticus和E.结果表明，短芒草E. breviaristatus是亚种间的，而不是种间的，处理E. Sinosubmuticus为E.结论短芒E. Sinosubmuticus和E.它们是Campeiostachys属的一个种。短芒披碱草（Elymussinosubmuticus）应改名为短芒Campeiostachysbreviaristata（Keng）Y。H. Zhou， H. Q. Zhang et C. R.杨亚种（S. L. Chen）Y. H. Zhou， H. Q.张氏等Tan.
BackgroundElymus breviaristatusandElymus sinosubmuticusare perennial herbs, not only morphologically similar but also sympatric distribution. The genome composition ofE. sinosubmuticushas not been reported, and the relationship betweenE. sinosubmuticusandE. breviaristatusis still controversial. We performed artificial hybridization, genomic in situ hybridization, and phylogenetic analyses to clarify whether the two taxa were the same species.ResultsThe high frequency bivalent (with an average of 20.62 bivalents per cell) at metaphase I of pollen mother cells of the artificial hybrids ofE. breviaristatus(StYH) × E. sinosubmuticuswas observed. It illustrated thatE. sinosubmuticuswas closely related toE. breviaristatus. Based on genomic in situ hybridization results, we confirmed thatE. sinosubmuticuswas an allohexaploid, and the genomic constitution wasStYH. Phylogenetic analysis results also supported that this species containedSt,Y, andHgenomes. In their F1hybrids, pollen activity was 53.90%, and the seed setting rate was 22.46%. Those indicated that the relationship betweenE. sinosubmuticusandE. breviaristatusis intersubspecific rather than interspecific, and it is reasonable to treatedE. sinosubmuticusas the subspecies ofE. breviaristatus.ConclusionsIn all, the genomic constitutions ofE. sinosubmuticusandE. breviaristatuswereStYH, and they are species in the genusCampeiostachys.BecauseE. breviaristatuswas treated asCampeistachys breviaristata,Elymus sinosubmuticusshould be renamedCampeiostachys breviaristata(Keng) Y. H. Zhou, H. Q. Zhang et C. R. Yang subsp.sinosubmuticus(S. L. Chen) Y. H. Zhou, H. Q. Zhang et L. Tan.
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影响因子：
1.9
作者：
ASSADI, M;RUNEMARK, H
通讯作者：
RUNEMARK, H
基于单拷贝核 Acc1 和 Pgk1 基因序列的披碱草（小麦科；禾本科）的系统发育关系和 Y 基因组起源
影响因子：
4.1
作者：
Fan, Xing;Sha, Li-Na;Zhou, Yong-Hong
通讯作者：
Zhou, Yong-Hong
影响因子：
1
作者：
KIHARA, H
通讯作者：
KIHARA, H
DOI：
10.1007/978-1-59745-251-9_6
发表时间：
2009-01-01
期刊：
BIOINFORMATICS FOR DNA SEQUENCE ANALYSIS
影响因子：
--
作者：
Guindon, Stephane;Delsuc, Frederic;Gascuel, Olivier
通讯作者：
Gascuel, Olivier
影响因子：
1
作者：
Johnson, Leigh A.;Johnson, Robert L.
通讯作者：
Johnson, Robert L.