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Female dog spotted living with male wolf at Hubei wildlife park, ‘arrangement 3 months in advance to establish a bond for breeding’_我的网站

一 |     这项研究是由美国能源部布鲁克海文国家实验室和纽约冷泉港实验室的研究人员进行的。    

    Photo: Screenshot from Sina Weibo
After visitors reported on Sunday seeing a dog in a wolf enclosure at a wildlife park in Yichang, Central China’s Hubei Province, the park responded on Monday that the female dog had been introduced for breeding purposes, and she has to live with the male wolf for three months to establish a bond before they mate, Beijing News reported on Monday. 
According to a staff member from the Three Gorges Forest Wild Animal World, there is a male wolf kept in the wolf enclosure and the female dog, which belongs to a dog raiser, had been placed in the enclosure to breed a wolfhound. The practice was agreed by the wildlife park. Last year, the couple also successfully had offspring. 
The staff member said the female dog is housed with the wolf only during the breeding season. They have to live together for three months in advance to establish an affection bond before the breeding period. 
However, the practice still sparked controversy online. A netizen said the core of the controversy is not whether the dog and the wolf can mate, but whether such breeding should take place in an area open to the public. 
Another netizen joked that while visitors said that they came to see wolves, only to be told by the park that the wolves were “busy dating,” so visitors would have to “make do with watching a dog.”
Global Times
。他们从一种被称为Lemna japonica的现有浮萍开始，向其添加了多个基因，这些基因已经被认为可以驱动其他植物的燃料生产和储存。在被描述为推/拉/保护效应中，其中一个基因推动（增加）脂肪酸的生产，其中一个基因将这些脂肪酸拉（组装）成三酰甘油油，另一个基因通过在植物组织中涂抹油滴来保护它们免受环境的降解。因此，工程浮萍积累的油几乎占其干重生物量的10%，据说这比该植物的野生对应物的积累率增加了100倍。它的油产量是当今最大的生物柴油来源大豆的7倍以上。然而，与大豆不同的是，浮萍作物不会占用农田，因为它们将被种植在大型容器或池塘中。事实上，科学家们建议，浮萍作物可以种植在养猪场和家禽场的液体废物径流中，这些植物将通过从水中吸取多余的营养物质来帮助清理。一个挑战在于，通常情况下，推动脂肪酸生产的基因也会阻碍植物生长。为了解决这个问题，"推动"基因与另一个被称为启动子的基因配对，后者通过向水中添加一种特定的化学诱导剂而被激活。首席科学家，布鲁克海文生物化学家John Shanklin说：“加入这个启动子可以使推动基因保持关闭，直到我们加入诱导剂，这使得植物在我们开启脂肪酸/石油生产之前可以正常生长。”研究人员现在正在研究种植浮萍并从中提取商业规模的油的方法。关于这项研究的一篇论文最近发表在《植物生物技术杂志》上。

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Published on:10:54:58