Sentence examples for fertile progeny from inspiring English sources

The new species is fertile and produces fertile progeny.

Reproduced with permission from K.T. Grant, and Princeton University Press, which first published the remaining images in "40 Years of Evolution" The definition of a species has traditionally included the inability to produce fully fertile progeny from interbreeding species, as is the case for the horse and the donkey, for example.

Once hybrid species occur in nature, subsequent backcrosses may be required to create fertile progeny.

Thus, it is difficult to obtain fertile progeny by crossing between Asian O. rufipogon and the Australian endemic species O. meridionalis (Chu et al. 1969).

The second migration model presumes that the r-type perennial might have originated from an ancestor that evolved in Asia, which was also a contributor to the Asian O. rufipogon gene pool because our recent crossing experiment has shown that Jpn1 can generate fertile progeny in crosses with Asian wild rice (data in preparation).

It is thought to originate from an amphidiploid hybrid of D. rotundifolia and D. linearis, meaning that a sterile hybrid between these two species doubled its chromosomes to produce fertile progeny which stabilized into the current D. anglica.

It should be noticed that although V. vinifera, V. riparia, V. rupestris and V. berlandieri are generally classified as 4 different species, they are all able to cross fertilize and to produce fertile progenies; therefore, they are strongly related and should be considered as the same biological species.

Moreover, O. sativa and O. glaberrima can cross naturally and give some fertile progenies, despite the presence of some fertility barriers such as the S1 locus which is known to be responsible of gametes abortion in O. sativa × O. glaberrima hybrids (Sano 1990).

In contrast, T. urartu pollen fertilizing T. monococcum eggs yielded almost sterile F1 hybrid plants which generated rare fertile progenies (Table 2).

Artificial backcrosses produced fertile progenies which resembled the parental phenotypes, indicating that under natural conditions it is difficult to detect hybrid derivatives [9], [14].

Artificial backcrosses produced fertile progenies which resembled the parental phenotypes, indicating that under natural conditions it will be difficult to detect hybrid derivatives [9], [14].