中国珍珠菜属(报春花科)一新种——右旋过路黄

对新种右旋过路黄Lysimachia dextrorsiflora X. P. Zhang, X. H. Guo &; J. W. Shao进行了描述和绘图。该新种产于中国安徽和福建, 因茎匍匐, 叶对生, 花黄色, 单生叶腋与过路黄L. christinae Hance近缘, 但其花冠裂片在蕾期右旋(顺时针)旋转排列(俯视), 花梗通常长于叶片与叶柄长之和, 花期4月初至5月初而不同。     

Glycosmis longipetala F. J. Mou & D. X. Zhang, a new species of Rutaceae from China

Glycosmis longipetala F. J. Mou & D. X. Zhang is described from Guangxi and Yunnan provinces in southwestern China. The new species is similar to G. Cochinchinensis (Lour.) Pierre ex Engl. By its simple leaves, but distinguishable in having long-elliptic or oblanceolate (vs. Ovate) leaves, long-ovoid to ellipsoid (vs. Ovoid) floral buds, ovaries with many tubercles (vs. Smooth) and glabrous (vs. Pubescent) stamens. The pollen grains of the new species are 23.9±3.09 (20.8-27.0)×22.0±1.80 (20.4-24.4) μm in size with reticulate exine ornamentation in equatorial area and foveolate in polar area. The chromosome number of the new species is 2n=72.     

凤丹栽培群体的表型变异研究

从我国6个凤丹(Paeonia ostii T.Hong et J.X.Zhang)中心产区,选取15个群体共398个单株,对20个表型性状进行调查和分析。结果显示,枝条数、地径、株高、茎长、冠幅长、冠幅宽、成花枝、芽位数、叶长和叶宽等10个表型性状受植株株龄的影响显著,随着株龄增加,除叶长和叶宽的平均值呈递减趋势外,其他8个性状的平均值都呈现递增趋势。凤丹群体间的表型分化系数为0~50.14%,平均值为27.62%,变化幅度最大的是二年生枝长,最小的为心皮数和二年生枝径。对当年生枝长、芽位高、当年生枝径、顶生小叶长、二年生枝径、顶生小叶宽、复叶数、心皮数、二年生枝长和叶柄长等不受株龄影响的10个表型性状进行主成分分析,结果显示前6个性状是影响表型差异的主要性状。各表型性状间存在一定的相关性,聚类分析结果将受株龄影响的10个性状划分为4组。研究结果表明凤丹表型性状在群体间和群体内的变异非常丰富,可为遗传改良和品种选育储备丰富的植物材料。     

Zur „Genauigkeit”︁ bei J. G. Mendel

When taking into account J. G. MENDEL's observed frequencies and comparing them with those noted down by BATESON, CORRENS and DARBISHIRE no ?striking”? preciseness in accordance with the statement made by F. WELLING is to be noticed statistically. By means of the four-field table measure K speculations as to a ?too precise”? indication of frequencies are to be refuted in an easy way.     

Withdrawn: X. Chen,Y. Li,M. Zhang,X. Wu,J. Zhu. Silencing LCK inactivates the NF-κB pathway to attenuate cartilage injury in osteoarthritis: An in vivo and in vitro study,published in The Journal of Gene Medicine.

The above article, published online on 10 August 2021 in Wiley Online Library ( wileyonlinelibrary.com ), has been withdrawn by agreement between the journal Editor in Chief, Gening Jiang, and John Wiley & Sons Ltd. The withdrawal has been agreed following no response from the author to requests to sign the Journal's publishing license.