Polyploidy is a mechanism that has caused many rapid speciation events in sympatry because offspring of, for example, tetraploid x diploid matings often result in triploid sterile progeny.

However, not all polyploids are reproductively isolated from their parental plants, and gene flow may still occur for example through triploid hybrid x diploid matings that produce tetraploids, or matings between meiotically unreduced gametes from diploids and gametes from tetraploids ( see also hybrid speciation ).

* triploid ( three sets ; 3x ), for example seedless watermelons, common in the phylum Tardigrada

In flowering plants, a second sperm nucleus fuses with other nuclei in the megagametophyte forming a typically polyploid ( often triploid ) endosperm tissue, which serves as nourishment for the young sporophyte.

Unfortunately, such efforts are progressing slowly because the triploid banana cultivars selected for human consumption are seedless and reproduce asexually, which decreases genetic variation and makes breeding difficult.

When used for weed control, often the fish introduced to the pond or stream are sterile, triploid fish.

The process for producing triploid fish involves shocking eggs with a rapid change in temperature or pressure.

Jonagold is triploid, with sterile pollen, and as such, requires a second type of apple for pollen and is incapable of pollenizing other cultivars.

Flake ( for three ) a cupful of cold boiled haddock, mix with a cupful of cooked rice, two minced hard-boiled eggs, some buttery white sauce done with cream, cayenne, pepper, salt, a pinch of curry, a tablespoonful of minced onion fried, and a bit of anchovy.

Another common method was to cut an onion in two and place each half on the wart for a moment ; ;

He thought about it for a minute, could find no reasonable explanation for the presence of a sweater in the refrigerator, got the salami, bread, and a Bermuda onion, and put the whole thing out of his mind.

This is also the case with the words for carrot ( luo buo or lo bac ) or ( hong luo buo hong meaning red ) and onion ( cong ).

When the word for onion, chung, is used, it is understood that one is referring to " green onions " ( otherwise known to English-speakers as scallions or spring onions, green onions ).

Its English name, chive, derives from the French word cive, from cepa, the Latin word for onion.

When boiling eggs for Easter, a popular tan colour can be achieved by boiling the eggs with onion skins.

" In the early 20th century, the term " French fried " was being used in the sense of " deep-fried ", for other foods such as onion rings or chicken.

Seafood traditionally was restricted to the northern coastal areas, except for pickled herring, often served as Rollmops ( a pickled herring fillet rolled into a cylindrical shape around a piece of pickled gherkin or onion ) or Brathering ( fried, marinated herring ).

The latter is marketed to Indians who refrain from eating garlic and onion for religious and / or cultural reasons.

Haggis is a savoury pudding containing sheep's pluck ( heart, liver and lungs ); minced with onion, oatmeal, suet, spices, and salt, mixed with stock, and traditionally encased in the animal's stomach and simmered for approximately three hours.

Like many Italian dishes, minestrone was probably originally not a dish made for its own sake, like for example the ancient Roman green onion soup " Patella Lucretiana ", or Lucrezio's dish.

In other words, whereas one might set about gathering green onions, anchovies, herring sauce and honey, as called for by the recipe for Lucrezio's green onion soup, one did not gather the ingredients of minestrone with the intention of making minestrone, as evidenced by the fact the name " minestrone " did not appear until the 14th century ( see Etymology ).

A common Turkish speciality for breakfast is called menemen, which is prepared with tomatoes, green peppers, onion, olive oil and eggs.

Agriculture is also strong in Padthaway with onion, olives and seeds being grown along with sheep and cattle which are reared for sale.

After Numa skilfully avoided the requests of the god for human sacrifices, Jupiter agreed to his request to know how lightning bolts are averted, asking only for the substitutions Numa had mentioned: an onion bulb, hairs and a fish.

Indeed, most parts of India use the regional name for onion interchangeably with shallot ( Maharashtra, for instance, where both are called kanda ).

A Spanish dish called escalivada calls for strips of roasted aubergine, sweet pepper, onion and tomato.

Suppliers use malt vinegar, onion vinegar ( used for pickling onions ), or the cheaper non-brewed condiment.

The genus Allium also contains a number of other species variously referred to as onions and cultivated for food, such as the Japanese bunching onion ( A. fistulosum ), Egyptian onion ( A.

For a blood-chilling ring of terror to the very sound of his name was the tool he needed for the job he'd promised to do.

My lovely caller -- Joyce Holland was her name -- had previously done three filmed commercials for zing, and this evening, the fourth, a super production, had been filmed at the home of Louis Thor.

Isfahan became more of a legend than a place, and now it is for many people simply a name to which they attach their notions of old Persia and sometimes of the East.

His name is Praisegod Piepsam, and he is rather fully described as to his clothing and physiognomy in a way which relates him to a sinister type in the author's repertory -- he is a forerunner of those enigmatic strangers in `` Death In Venice '', for example, who represent some combination of cadaver, exotic, and psychopomp.

I was having lunch not long ago ( apologies to N. V. Peale ) with three distinguished historians ( one specializing in the European Middle Ages, one in American history, and one in the Far East ), and I asked them if they could name instances where the general mores had been radically changed with `` deliberate speed, majestic instancy '' ( Francis Thompson's words for the Hound Of Heaven's Pursuit ) by judicial fiat.

Later Helion wrote of this phase: `` For years I built for myself a subtle instrument of relationships -- colors and forms without a name.

An accompanying sympathetic letter explained that inside the envelope was a name for Mrs. Coolidge's first granddaughter.

Outraged, he used the Advocate of March 7th for a denial, sending immediately to Santa Fe and Van Buren for documents to vindicate himself, and demanding that Woodruff reveal the name of this perfidious slanderer who disguised himself under a pastoral pseudonym.

Master Gorton, having foully abused high and low at Aquidneck is now bewitching and bemaddening poor Providence, both with his unclean and foul censures of all the ministers of this country ( for which myself have in Christ's name withstood him ), and also denying all visible and external ordinances in depth of Familism: almost all suck in his poison, as at first they did at Aquidneck.

This refers to what had happened after the Earl of Warwick died in 1590, when the town petitioned Burghley for the right to name the vicar and schoolmaster and other privileges but Greville bought the lordship for himself.

He said he was a friend of Heywood Broun who had run a free employment bureau for several months during the depression, but the generous Broun to whom I wrote did not know his name and I somehow conceived the morbid notion that the man in question was prowling round the house.

He had also learned to dispute extempore remarkably well, the main evidence for which of course is the presence of his name in the honors list of 1628/29.

These gentlemen are calling for a resumption of testing -- in the atmosphere -- on the greatest possible scale, all in the name of national security.

Suggest the following twenty-first-century amendment: By moving the term `` Republic '' to lower case, substituting the modern phrase, `` move ahead '' for the stodgy `` keep '', and by using the Postmaster's name on every envelope ( in caps, of course, with the `` in spite '' as faded as possible ), the slogan cannot fail.

He had a mean, unbroken sheer bastard in his outfit, and someone invented the name Trig for him.

Such was the impromptu that Voltaire gave to howls of laughter at Sans Souci and that was soon circulated in manuscript throughout the literary circles of Europe, to be printed sometime later, but with the name of Timon of Athens, the famous misanthrope, substituted for that of Rousseau.

Watson had given his name and asked for a safe-conduct pass.

And the name Rayburn is one of the most dominant in the history of American politics for the last half century.

Commencing with the death of Lucian Sharpe in 1899, the name of Henry D. Sharpe was for more than 50 years closely interwoven with the destiny of the company.

The name `` alkali bee '' indicates that one has to look for them in rather inhospitable places.

The name thyroid-stimulating hormone ( TSH ) has been given to a substance found in the anterior pituitary gland of all species of animal so tested for its presence.

Revenue Ruling 54-17 provides that if the corporation against which a tax was assessed has since been liquidated by merger with a successor corporation, a claim for refund should be filed by the successor in the name and on behalf of the corporation which paid the tax, followed by the name of the successor corporation.