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2006-08-27 18:38:18 · 8 answers · asked by Anonymous in Science & Mathematics Botany

8 answers

Yes, there are literally thousands of such plants in existence. One of the most famous hybrid plants is common bread wheat, which is a hybrid of wild wheat and goat grass.

EDIT>>>

Jose,

You may be an agricultural engineer but I don't; think so. You are talking rubbish in this thread.

First, hybrid animals can and do routinely have descendants. There are large herds Nth generation cattle X bison hybrids for example, and the US is positively teeming with hybrid domestic x Asian leopard cat crosses. These and numerous other animal strains are perfectly fertile despite being hybrids

Second, there are many plant hybrids that can NOT produce seeds. Seedless watermelons are an obvious example. So your claim that all hybrid plants can produce seed is simply nonsense.

Thirdly hybridisation in plants is NOT primarily to produce hybrid vigour. Hybridisation is primarily a way to introduce desirable traits that don't currently exist in a line. Nobody hybridises corn and teosint, or orchids to produce hybrid vigour.

Fourthly hybrids do not normally result form crossing individuals of the same species. Wheat and goat grass are not even the same genus.

In summary, every single point you made in this thread is factually incorrect.

2006-08-27 18:42:50 · answer #1 · answered by Anonymous · 3 2

yes. many wild plant species are in fact hybrids - the result of other 2 species crossbreeding. some hybrids are fertile some are not and can reproduce only vegetatively.

all the things about F1 and hybrid vigor are only true for some species (like maize is typical - you crossbreed two species and the hybrid has higher productivity than each of parents, but if you take seeds from the hybrid, they are NOT STERILE, no way, but they grow into plants that are not as vigorously growing as the first-generation=F1 hybrid) . clearly some people take this as the ONLY definition of hybrids in the plant kingdom, which is untrue and misleading ( leviter and mangidabx are right). ANY crossbreeds can be called hybrids.

2006-08-29 02:32:08 · answer #2 · answered by iva 4 · 0 1

One of the problems here is that the word hybrid
is used in two different senses. In one case it
is used for the crossing of two different individuals
of the same species, which have different traits,
as in hybrid corn, also in the terms monohybrid or
dihybrid crosses in genetics. In the other case it
means the crossing of individuals of two entirely
different species, as in crossing horse and donkey
to produce a mule. This is an unfortunate and
confusing situation, but no one seems inclined to
try to change it.

In plants reproducing hybrids are common. In fact
some botanists estimate that 50% or more of the
natural wild species of plants are of hybrid origin.
Corn and bread wheat are both human produced
hybrids. Fertile hybrids are much less common in
animals than they are in plants. The mule, for
example, is sterile. Among animals the canids
are known for producing fertile hybrids, coydogs
and dog-wolf hybrids, for example, though the
latter may not be really two different species. There are apparently fertile hybrids among fish, also.

2006-08-28 09:15:08 · answer #3 · answered by Anonymous · 0 1

Hybridness has not the same meaning in animals and plants.

While in animals, a hybrid can not have descendants and is the product of crossing two different species (ex. the mule), in plants all of them can generate seeds to reproduce.

Hybridization in plants have the main purpose of express "hybrid vigor", which is the genetic phenomenon that produces that the F1 (first generation) shows a higher performance, for any characteristic the geneticist is interested on, than the average of both parents.

It's called a hybrid because is the result of crossing two individuals of the same specie but located very far from each other, genetically speaking.
That means they have many characters fixed, that when crossed to other organism that has the same gene fixed but in the opposite allele, produces a major crash between them, therefore a hybrid.

2006-08-28 00:12:38 · answer #4 · answered by Transgénico 7 · 3 1

the type of hybrid you are talking about cannot be grown from one generation to the next. for example, if the plant is hybrid for one simple trait, the subsequent generation will be 1/2 hybrids, 1/4 of one trait, and 1/4 of the other trait.

2006-08-27 22:29:49 · answer #5 · answered by Anonymous · 0 1

Yes. Consider hybrid tea roses.

2006-08-27 18:45:59 · answer #6 · answered by Anonymous · 0 0

umm yeah what do you think bosenberries are?

2006-08-27 23:12:22 · answer #7 · answered by KrazyK784 4 · 0 0

YES!

2006-08-27 20:36:10 · answer #8 · answered by ? 2 · 0 0

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