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reply to post by soficrow
....there is not a single example -- not one -- of an interordinal hybrid known from nature. Anywhere. That includes animals, plants, fungi, and so on.
Resolution among major placental mammal interordinal relationships with genome data imply that speciation influenced their earliest radiations
reply to post by flyingfish
a wild boar would most certainly eat a chimp, not try and mate with it!
In fact, females offering sexual favours to male predators is a recognized survival tactic. Cross-species hybridization in the wild occurs with some regularity. The progeny commonly are NOT sterile but do tend to have reduced reproductive abilities. ...Read the references!
For the present, I ask the reader to reserve judgment concerning the plausibility of such a cross. I'm an expert on hybrids and I can assure you that our understanding of hybridization at the molecular level is still far too vague to rule out the idea of a chimpanzee crossing with a nonprimate.
Anyone who speaks with certainty on this point speaks from prejudice, not knowledge.
No systematic attempts to cross distantly related mammals have been reported.
However, in the only animal class (Pisces) where distant crosses have been investigated scientifically, the results have been surprisingly successful (399.6, 399.7, 399.8). In fact, there seems to be absolutely nothing to support the idea that interordinal crosses (such as a cross between a primate and a nonprimate) are impossible, except what Thomas Huxley termed "the general and natural belief that deliberate and reiterated assertions must have some foundation."
Conclusion The narrow temporal window within which some placental divergences took place suggests that inconsistencies and limited resolution of the mammalian tree may have their natural explanation in speciation processes such as lineage sorting, introgression from species hybridization or hybrid speciation. These processes obscure phylogenetic analysis, making some parts of the tree difficult to resolve even with genome data.
Hybrids between common and Antarctic minke whales are fertile and can back-cross
This study clearly demonstrates, for the first time, that hybrids between minke whale species may be fertile, and that they can back-cross. Whether contact between these species represents a contemporary event linked with documented recent changes in the Antarctic ecosystem, or has occurred at a low frequency over many years, remains open.
A NEW HYBRID BETWEEN A BLUE WHALE, BALAENOPTERA MUSCULUS, AND A FIN WHALE, B. PHYSALUS: FREQUENCY AND IMPLICATIONS OF HYBRIDIZATION
…Either species may act as father or mother, and there does not appear to be a selection for a given sex among the hybrids. The reproductive capacity of these hybrids remains unknown, although incidence of reproductive impairment appears to be higher in hybrid males than in hybrid females.
soficrowFYI - I am not and have not spoken "with certainty" - I have just said this is a reasonable hypothesis.
…the Mv1751 gene was able to complement an essential gene in another domain of life. It is rare to find two genes from different domains of life, especially essential genes, that are interchangeable. Because of the conservation of many aspects of the N-linked glycosylation systems in bacteria, archaea, and eukaryotes, the deciphering of the roles and interchangeability of various components may be advanced by consideration of the use of cross-domain complementation.
Putative cross-kingdom horizontal gene transfer in sponge (Porifera) mitochondria
…We suggest that the horizontal gene transfer of a mitochondrial intron was facilitated by a symbiotic relationship between fungus and sponge. Ecological relationships are known to have implications at the genomic level. Here, an ecological relationship between sponge and fungus is suggested based on the genomic analysis.
Polypurine (A)-rich sequences promote cross-kingdom conservation of internal ribosome entry
…Presumably, such IRES elements can overcome kingdom-specific barriers to translation of the second gene because of their unique capability to exploit only those translation initiation factors and noncanonical transacting proteins that are able to express their function universally in different types of cell. It is possible that the ribosome per se, as the most conserved element of the eukaryotic translation apparatus, is responsible for cross-kingdom IRES activity.
…Analysis of European Molecular Biology Laboratory databases showed that the 5′UTRs of numerous cellular mRNAs contain PARSs that could be regarded as putative plant IRESs. Our preliminary results indicate that two additional mRNAs of this type, i.e., those encoding the tobacco poly(A)-binding protein (43) and 48-kDa mitogen-activated protein kinase (44), also promote internal translation. The approach could thus be used to identify IRES elements in eukaryotic genomes.
A bacterial cell–cell communication signal with cross-kingdom structural analogues
Extracellular signals are the key components of microbial cell–cell communication systems. … As prokaryote–eukaryote interactions are ubiquitous, such cross-kingdom conservation in cell–cell communication systems might have significant ecological and economic importance.
Cross-phylum regulatory potential of the ascidian Otx gene in brain development in Drosophila melanogaster.
The origin of molecular mechanisms of cephalic development is an intriguing question in evolutionary and developmental biology. …These results support the notion that basal chordates such as ascidians have the same molecular patterning mechanism for the anterior structures found in higher chordates, and suggest a common genetic program of cephalic development in invertebrate, protochordate and vertebrate.
Conserved genetic programs in insect and mammalian brain development
These studies also show that the genes of the otd/Otx family can functionally replace each other in cross-phylum rescue experiments and indicate that the genetic mechanisms underlying pattern formation in insect and mammalian brain development are evolutionarily conserved.
…a novel family of proteins of presumably nuclear localization, with a characteristic highly basic motif, KRR-R, transcends various phyla, and plays an important role in cellular processes. We propose to call this essential gene KRR1.
CRISPR loci reveal networks of gene exchange in archaea
Spacers reveal gene transfer events across species boundaries
….This work demonstrates that there is much gene exchange within and between archaeal genera, and that anti-viral spacers, especially cross-protective ones, are preferentially retained. While the primary role of CRISPR/Cas systems appears to be to provide immunity against invading DNA, many spacers that are acquired can target ran- dom, presumably harmless, genes, just as vertebrate immune systems often recognize harmless antigens.
reply to post by Wolfenz
...If Humans on Earth can Do it Now !! Why couldn't an Higher Race of Beings did it to US!!
Science just copies what happens in nature - especially bio- and nano-technology. So a "higher race of beings" could have done it, but it also could have happened naturally.
GREAT links btw. S& : up :
Researchers at Shanghai Second University have combined humans and rabbits [source: Telegraph]. Mayo Clinic scientists in Minnesota have already created pigs that have human blood, and a Stanford researcher developed mice whose brains are 1 percent human, with the ultimate goal of creating mice with entirely human brains [source: National Geographic]. It's not actually new in Britain, either: Human-cow embryos have been growing in London for quite some time.
You may even know a chimera, yourself. Technically, transplant patients who've received heart valves from a pig are chimeras. Along those lines, some of the chimera research to date has focused on how to create animal organs that are partly human so the human body has a better chance of accepting that kind of transplant. Some of it focuses on creating an egg to aid in human fertility research, since human eggs are hard to come by and are very expensive. Other research, though, including the new research at the University of Warwick in the United Kingdom, has different, albeit related, goals.
Stanford researcher developed mice whose brains are 1 percent human, with the ultimate goal of creating mice with entirely human brains [source: National Geographic]
Research published in the March 2013 issue of Cell Stem Cell details the injection of human glial cells into the brains of newborn mice. Upon maturation, the mice were faster learners—a novel marker of life imitating art. Like Mrs. Frisby and her rat cohorts, it would appear that researchers working with the National Institutes of Health are busy creating super-smart rodents that may well lead to dramatic breakthroughs in neuroscience.
the use of and dependence on technology such as protective clothing and fire building. Every other animal has been physically adapted to survive in their surroundings without wearing clothes or building fires to stay warm.
Just as a question : can anyone think of any physical trait found in Humans that has not happened at least once before in the fossil record?
McCarthy is one of the world’s leading geneticists and probably the greatest expert for hybrid animals in the world
INHERITANCE OF CHROMOSOME NUMBER IN PIGS
All possible crosses were made between European wild pigs with either 36 or 37 chromosomes and domestic swine with 38. The 36×36 cross produced only pigs with 36; the 36×37 and 37×38 crosses yielded the parent numbers in about equal numbers of pigs. All pigs resulting from the 36×38 cross had 37, while crossing 37×37 gave progeny with 36, 37 or 38 in about a 1:2:1 ratio. It is surmised that the three unpaired members in the 37-chromosome animal act as a trivalent during meiosis with two telocentric chromosomes behaving as a unit. No firm evidence indicated reduced fertility in any of the animals nor were any physical changes evident which could be associated with different chromosome forms.
No matter how this claim may seem unbelievable, McCarthy is one of the world’s leading geneticists and probably the greatest expert for hybrid animals in the world
reply to post by Evanzsayz
LOL, I don't think I would call him the greatest expert after a claim like that.