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Powdery mildew resistance gene Pm21, located on the chromosome 6V short arm of Haynaldia villosa and transferred to wheat as a 6VS·6AL translocation (T6VS·6AL), confers durable and broad-spectrum resistance to wheat powdery mildew. Pm21 has become a key gene resource for powdery mildew resistance breeding all over the world. In China, 12 wheat varieties(More)
STUDY QUESTION Does calcium oscillatory pattern analysis following heterologous intra-cytoplasmic sperm injection (ICSI) of human sperm into mouse oocytes lead to diagnostic and prognostic information for patients suffering from ICSI fertilization failure? SUMMARY ANSWER We found that calcium oscillatory pattern analysis following heterologous ICSI has(More)
The fertilization rates and further development of 528 human metaphase II oocytes directly injected by a single spermatozoon were analysed with respect to their morphological features at the light microscopy level at the time of retrieval. The deviations of oocyte morphology which were most frequently observed, after removal of cumulus cells, were dark(More)
STUDY QUESTION Does the application of three different artificial activating stimuli lead to a difference in pre- and post-implantation embryo development in the wobbler mouse, a mouse model with oocyte activation deficient round-headed sperm cells similar to human globozoospermia? SUMMARY ANSWER No gross differences were found between strontium chloride,(More)
—A massive multiple-input multiple-output (MIMO) system, which utilizes a large number of antennas at the base station (BS) to serve multiple users, suffers from pilot contamination due to inter-cell interference. A smart pilot assignment (SPA) scheme is proposed in this letter to improve the performance of users with severe pilot contamination.(More)
We have previously shown that sperm plasma membrane damage makes the sperm plasma membrane permeable and the sperm nucleus accessible for low molecular weight molecules such as eosin and dithiothreitol. In the present study, we investigated whether this damage is associated with a passive release of the sperm-associated oocyte activating factor (SAOAF) from(More)
Stem rust (Puccinia graminis f. sp. tritici Eriks. & E. Henn.) (the causal agent of wheat stem rust) race Ug99 (also designated TTKSK) and its derivatives have defeated several important stem rust resistance genes widely used in wheat (Triticum aestivum L.) production, rendering much of the worldwide wheat acreage susceptible. In order to identify new(More)
Purpose: Preliminary data from some research centers indicate that assisted hatching might be of value to increase embryo implantation rate in the human, at least in selected cases. It is not clear, however, whether this technique would be of benefit for all patients undergoing an embryo transfer. We therefore performed a prospective randomized study to(More)
The aim of this study was to investigate whether the human spermatozoon participates in the activation of human oocytes following intracytoplasmic sperm injection (ICSI) and if so, by what mechanism. In the first series of experiments, we randomized human oocytes which had remained unfertilized after in-vitro fertilization (IVF) or ICSI, for(More)
OBJECTIVE To study the influence of low-sodium cryopreservation media (CPM) on the survival and development of frozen-thawed germinal vesicle (GV) stage and in vitro matured human oocytes. DESIGN Prospective experimental study. SETTING Academic hospital-based fertility center. PATIENT(S) Experimental groups: Oocytes cryopreserved at the GV (group A, n(More)