Ploidy is the number of complete sets of chromosomes in a cell, and hence the number of possible alleles for autosomal and pseudoautosomal genes. Sets of chromosomes refer to the number of maternal and paternal chromosome copies, respectively, in each homologous chromosome pair, which chromosomes naturally exist as. Somatic cells, tissues, and individual organisms can be described according to the number of sets of chromosomes present : monoploid, diploid, triploid, tetraploid, pentaploid, hexaploid, heptaploid or septaploid, etc. The generic term polyploid is often used to describe cells with three or more chromosome sets.
Fragaria is a genus of flowering plants in the rose family, Rosaceae, commonly known as strawberries for their edible fruits. There are more than 20 described species and many hybrids and cultivars. The most common strawberries grown commercially are cultivars of the garden strawberry, a hybrid known as Fragaria × ananassa. Strawberries have a taste that varies by cultivar, and ranges from quite sweet to rather tart. Strawberries are an important commercial fruit crop, widely grown in all temperate regions of the world.
The garden strawberry is a widely grown hybrid species of the genus Fragaria, collectively known as the strawberries, which are cultivated worldwide for their fruit. The fruit is widely appreciated for its characteristic aroma, bright red color, juicy texture, and sweetness. It is consumed in large quantities, either fresh or in such prepared foods as jam, juice, pies, ice cream, milkshakes, and chocolates. Artificial strawberry flavorings and aromas are also widely used in products such as candy, soap, lip gloss, perfume, and many others.
Fragaria virginiana, known as Virginia strawberry, wild strawberry, common strawberry, or mountain strawberry, is a North American strawberry that grows across much of the United States and southern Canada. It is one of the two species of wild strawberry that were hybridized to create the modern domesticated garden strawberry.
The musk strawberry or hautbois strawberry, is a species of strawberry native to Europe. Its French name hautbois strawberry may be anglicised as hautboy strawberry. The plants are hardy and can survive in many weather conditions. They are cultivated commercially on a small scale, particularly in Italy. The fruit are small and round; they are used in the gourmet community for their intense aroma and flavour, which has been compared to a mixture of regular strawberry, raspberry and pineapple. Popular cultivated varieties include 'Capron' and 'Profumata di Tortona'.
Fragaria vesca, commonly called the wild strawberry, woodland strawberry, Alpine strawberry, Carpathian strawberry or European strawberry, is a perennial herbaceous plant in the rose family that grows naturally throughout much of the Northern Hemisphere, and that produces edible fruits.
Fragaria chiloensis, the beach strawberry, Chilean strawberry, or coastal strawberry, is one of two species of wild strawberry that were hybridized to create the modern garden strawberry. It is native to the Pacific Ocean coasts of North and South America.
Fragaria nipponica is a species of wild strawberry native to the western side of the Japanese island of Honshū, with a variety Fragaria nipponica var. yakusimensis on Yakushima. Some botanists treat it as a synonym of Fragaria yezoensis.
Fragaria yezoensis is a species of wild strawberry native to the eastern side of the Japanese island of Hokkaidō, and the adjacent Kuril Islands and Sakhalin in Russia. It is of no economic value. Some botanists include the very similar Fragaria nipponica in F. yezoensis as a synonym.
Fragaria viridis, commonly called creamy strawberry or green strawberry is a species of strawberry native to Europe and central Asia. It has fruits with fine flavour. They have surprisingly little of the usual strawberry aroma, but a refreshing acidity, and sometimes ripen without becoming red. When they are plucked from the plant, the calyx will usually adhere and they will detach with a noticeable snapping sound.
Fragaria daltoniana is a species of strawberry native to the Himalayas. Its fruit has a poor flavor, and is of no commercial value.
Fragaria nilgerrensis is a species of wild strawberry native to southern and southeast Asia. Its fruit are white to light pink, with poor flavour, and the fruit is of no commercial value. It is similar in appearance to F. moupinensis.
Crocus sativus, commonly known as saffron crocus or autumn crocus, is a species of flowering plant in the iris family Iridaceae. A cormous autumn-flowering cultivated perennial, unknown in the wild, it is best known for the culinary use of its floral stigmas as the spice saffron. Human cultivation of saffron crocus and the trade and use of saffron have endured for more than 3,500 years and span different cultures, continents, and civilizations.
Pseudotsuga japonica, the Japanese Douglas-fir, is a species of conifer in the pine family, Pinaceae, that is endemic to Japan. It is a medium-sized tree growing to 25 m (82 ft) tall. Japanese calls this tree 'Togasawara (トガサワラ)'.
Mount Nōgōhaku is located on the borders of Gifu and Fukui prefectures in Japan. It is part of the Ryōhaku Mountains and serves as the drainage divide between the Pacific Ocean and the Japan Sea. There is one triangulation station at the top of the mountain.
Mount Norikura is a potentially active volcano located on the borders of Gifu and Nagano prefectures in Japan. It is part of the Hida Mountains and is listed among the 100 Famous Japanese Mountains and the New 100 Famous Japanese Mountains.
Mount Kasa is one of the 100 Famous Japanese Mountains, reaching the height of 2,897 m (9,505 ft). It is situated in Japan's Hida Mountains in Gifu Prefecture and in Chūbu-Sangaku National Park. The shape of the mountain looks like the Umbrella("Kasa"-笠) in the triangle. Therefore, it became this name. There are many mountains with same name in Japan and this is the tallest.
Mount Kurobegorō is one of the 100 Famous Japanese Mountains, reaching the height of 2,839.58 m (9,316 ft). It is situated in Japan's Hida Mountains in Gifu Prefecture and Toyama Prefecture. It was specified for Chūbu-Sangaku National Park on December 4, 1934.
Mount Yakushi is one of the 100 Famous Japanese Mountains, reaching the height of 2,926 m (9,600 ft). It is situated in Japan's Hida Mountains in Toyama Prefecture. It was specified for Chūbu-Sangaku National Park on December 4, 1934.
The breeding of strawberries started with the selection and cultivation of European strawberry species in western Europe in the 15th century while a similar discovery and cultivation occurred in Chile. The most commonly consumed strawberry species in modern times is the garden strawberry, a species derived from hybridization of two other species, with the scientific name Fragaria × ananassa, but there are many species of strawberries, several others of which are cultivated to some extent. The strawberry species fall into several different genetic types, based on their number of chromosomes. Strawberry growers have employed many breeding techniques, starting with traditional plant breeding and then moving on to molecular breeding and genetic engineering in the 20th century.
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