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Papaya Plant and fruit, from Koehler's Medicinal-Plants (1887) Conservation status Data Deficient (IUCN 3.1) Scientific classification Kingdom: Plantae Clade: Tracheophytes Clade: Angiosperms Clade: Eudicots Clade: Rosids Order: Brassicales Family: Caricaceae Genus: Carica Species: C. papaya Binomial name Carica papaya L. The papaya, papaw, is the plant species Carica papaya, one of the 21 ...
Most varieties of papaya are dioecious, having both male and female flowers on separate plants. Plants of each type must be present for these to produce fruit. Some papaya plants are capable of self-pollination, producing flowers that are either female or hermaphrodite with both male and female parts on the same flower.
In the domesticated papaya (Carica papaya), three sex chromosomes are present, denoted as X, Y and Y h. This corresponds with three sexes: females with XX chromosomes, males with XY, and hermaphrodites with XY h. The hermaphrodite sex is estimated to have arisen only 4000 years ago, post-domestication of the plant.
Some species, such as the papaya, bear edible fruit and produce papain. [3] Based on molecular analyses, this family has been proposed to have originated in Africa in the early Cenozoic era, ~66 million years ago (mya). The dispersal from Africa to Central America occurred ~35 mya, possibly via ocean currents from the Congo delta.
A hermaphrodite (/ h ər ˈ m æ f r ə ˌ d aɪ t /) is a sexually reproducing organism that produces both male and female gametes. [1] Animal species in which individuals are either male or female are gonochoric , which is the opposite of hermaphroditic.
The Sonoran Desert. The Sonoran Desert is a North American desert and ecoregion which covers large parts of the southwestern United States and of northwestern Mexico. With an area of 260,000 square kilometers (100,000 sq mi), it is the hottest desert in Mexico.
Sexual selection is a common concept in animal evolution but, with plants, it is often overlooked because many plants are hermaphrodites. Flowering plants show many characteristics that are often sexually selected for. For example, flower symmetry, nectar production, floral structure, and inflorescences are just a few of the many secondary sex ...
Close-up of a Schlumbergera flower, showing part of the gynoecium (specifically the stigma and part of the style) and the stamens that surround it. Plant reproductive morphology is the study of the physical form and structure (the morphology) of those parts of plants directly or indirectly concerned with sexual reproduction.