Capsicum rhomboideum

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Capsicum rhomboideum
Capsicum rhomboideum at flowering.jpg
Capsicum rhomboideum at flowering featuring yellow flowers.
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Solanales
Family: Solanaceae
Genus: Capsicum
Species:
C. rhomboideum
Binomial name
Capsicum rhomboideum
(Dunal) Kuntze
Synonyms [1]
  • Capsicum ciliatum(Kunth) Kuntze
  • Witheringia ciliata Kunth

Capsicum rhomboideum is a perennial member of the genus Capsicum with 2n=2x=26, and is considered a distant wild relative of the chili pepper. Its fruit do not have any pungency, and are a 0 on the Scoville Heat Unit scale. [2] [3] It gets its name from the rhomboidal to elliptical shape of its leaves. [4] It is native to Mexico, Central America, and Andean region of South America. [5] [6]

Contents

Plant description

Capsicum rhomboideum is typically a perennial shrub. It is densely covered in trichomes, making it pubescent. It is best identified by its rhomboidal to elliptically-shaped leaves. The flowers have a five-toothed calyx and yellow bell-shaped corolla. [5] [7] The pollen grains are extremely small, 15 μm. [8] Mature fruit of C. rhomboideum are pea-shaped and sized, bright red to black when fresh, and they darken as they dry. They typically bear 2-6 seed per fruit. The seeds are brown. [4]

Genome

The genome of C. rhomboideum is smaller than that of C. annuum. In the specific differentiation, C. rhomboideum likely underwent genome size reduction. Approximately 5% of the genome is heterochromatic. [6] The typical Capsicum has 2n=24, and since 2n=26 in C. rhomboideum , causing it to be reclassified from Capsicum ciliatum in 2001. [4]

Related Research Articles

<span class="mw-page-title-main">Bell pepper</span> Group of fruits of Capsicum annuum

The bell pepper is the fruit of plants in the Grossum Group of the species Capsicum annuum. Cultivars of the plant produce fruits in different colors, including red, yellow, orange, green, white, chocolate, candy cane striped, and purple. Bell peppers are sometimes grouped with less pungent chili varieties as "sweet peppers". While they are botanically fruits—classified as berries—they are commonly used as a vegetable ingredient or side dish. Other varieties of the genus Capsicum are categorized as chili peppers when they are cultivated for their pungency, including some varieties of Capsicum annuum.

<span class="mw-page-title-main">Chili pepper</span> Varieties of peppers belonging to several species of Capsicum genus

Chili peppers, also spelled chile or chilli, are varieties of the berry-fruit of plants from the genus Capsicum, which are members of the nightshade family Solanaceae, cultivated for their pungency. Chili peppers are widely used in many cuisines as a spice to add "heat" to dishes. Capsaicin and related compounds known as capsaicinoids are the substances giving chili peppers their intensity when ingested or applied topically. Chili peppers exhibit a wide range of heat and flavor profiles. This diversity is the reason behind the availability of different types of paprika and chili powder, each offering its distinctive taste and heat level.

<i>Capsicum pubescens</i> Species of plant

Capsicum pubescens is a plant of the genus Capsicum (pepper). The species name, pubescens, refers to the hairy leaves of this pepper. The hairiness of the leaves, along with the black seeds, make Capsicum pubescens distinguishable from other Capsicum species. Capsicum pubescens has pungent yellow, orange, red, green or brown fruits.

<i>Capsicum annuum <span style="font-style:normal;">var.</span> glabriusculum</i> Variety of chili pepper

Capsicum annuum var. glabriusculum, a chili-pepper variety of Capsicum annuum, is native to southern North America and northern South America. Common names include chiltepín, Indian pepper, grove pepper, chiltepe, and chile tepín, as well as turkey, bird’s eye, or simply bird peppers. Tepín is derived from a Nahuatl word meaning "flea". This variety is the most likely progenitor of the domesticated C. annuum var. annuum. Another similar-sized pepper, 'Pequin' is often confused with tepin, although the tepin fruit is round to oval where as the pequin's fruit is oval with a point, and the leaves, stems and plant structures are very different on each plant.

<i>Capsicum annuum</i> Species of flowering plant in the nightshade family Solanaceae

Capsicum annuum is a species of the plant genus Capsicum native to southern North America, the Caribbean, and northern South America. This species is the most common and extensively cultivated of the five domesticated capsicums. The species encompasses a wide variety of shapes and sizes of peppers, including sweet bell peppers and some chili pepper varieties such as jalapeños, New Mexico chile, and cayenne peppers, all of which are nightshades. Cultivars descended from the wild American bird pepper are still found in warmer regions of the Americas. In the past, some woody forms of this species have been called C. frutescens, but the features that were used to distinguish those forms appear in many populations of C. annuum and are not consistently recognizable features in C. frutescens species.

<i>Capsicum frutescens</i> Species of chili pepper

Capsicum frutescens is a wild chili pepper having genetic proximity to the cultivated pepper Capsicum chinense native to Central and South America. Pepper cultivars of C. frutescens can be annual or short-lived perennial plants. Flowers are white with a greenish white or greenish yellow corolla, and are either insect- or self-pollinated. The plants' berries typically grow erect; ellipsoid-conical to lanceoloid shaped. They are usually very small and pungent, growing 10–20 millimetres (0.39–0.79 in) long and 3–7 millimetres (0.12–0.28 in) in diameter. Fruit typically grows a pale yellow and matures to a bright red, but can also be other colors. C. frutescens has a smaller variety of shapes compared to other Capsicum species. C. frutescens has been bred to produce ornamental strains because of its large quantities of erect peppers growing in colorful ripening patterns.

<i>Capsicum chinense</i> Species of flowering plant

Capsicum chinense, commonly known as a "habanero-type pepper", is a species of chili pepper native to the Americas. C. chinense varieties are well known for their unique flavors and many have exceptional heat. The hottest peppers in the world are members of this species, with a Scoville Heat Unit score of 2.69 million measured in the C. chinense cultivar, Pepper X in 2023.

<span class="mw-page-title-main">Pequin pepper</span> Chili pepper cultivar

Pequinpepper is a hot chili pepper cultivar commonly used as a spice. Pequin peppers are very hot, often 5–8 times hotter than jalapeños on the Scoville scale. Flavor is described as citrusy and nutty.

<span class="mw-page-title-main">Siling labuyo</span> Chili pepper cultivar

Siling labuyo is a small chili pepper cultivar that developed in the Philippines after the Columbian Exchange. It belongs to the species Capsicum frutescens and is characterized by triangular fruits which grow pointing upwards. The fruits and leaves are used in traditional Philippine cuisine. The fruit is pungent, ranking at 80,000 to 100,000 heat units in the Scoville Scale.

Colletotrichum capsici is a species of fungus and plant pathogen which causes leaf blight on Chlorophytum borivilianum, basil, chickpea and pepper as well as dieback in pigeonpea and anthracnose in poinsettia.

<span class="mw-page-title-main">Facing heaven pepper</span>

The facing heaven pepper is a type of cone pepper, a group of cone-shaped, medium-hot chili peppers within the species Capsicum annuum. The species is native to Central America.

<span class="mw-page-title-main">Bird's eye chili</span> Variety of chili pepper

Bird's eye chili or Thai chili is a chili pepper, a variety from the species Capsicum annuum native to Mexico. Cultivated across Southeast Asia, it is used extensively in many Asian cuisines. It may be mistaken for a similar-looking chili derived from the species Capsicum frutescens, the cultivar siling labuyo. Capsicum frutescens fruits are generally smaller and characteristically point upwards.

<i>Capsicum</i> Genus of flowering plants

Capsicum is a genus of flowering plants in the nightshade family Solanaceae, native to the Americas, cultivated worldwide for their chili pepper or bell pepper fruit.

<span class="mw-page-title-main">Solanaceae</span> Family of flowering plants that includes tomatoes, potatoes and tobacco

The Solanaceae, or the nightshades, are a family of flowering plants that ranges from annual and perennial herbs to vines, lianas, epiphytes, shrubs, and trees, and includes a number of agricultural crops, medicinal plants, spices, weeds, and ornamentals. Many members of the family contain potent alkaloids, and some are highly toxic, but many—including tomatoes, potatoes, eggplant, bell and chili peppers—are used as food. The family belongs to the order Solanales, in the asterid group and class Magnoliopsida (dicotyledons). The Solanaceae consists of about 98 genera and some 2,700 species, with a great diversity of habitats, morphology and ecology.

<span class="mw-page-title-main">Cayenne pepper</span> Hot chili pepper used to flavor dishes

The cayenne pepper is a type of Capsicum annuum. It is usually a moderately hot chili pepper used to flavor dishes. Cayenne peppers are a group of tapering, 10 to 25 cm long, generally skinny, mostly red-colored peppers, often with a curved tip and somewhat rippled skin, which hang from the bush as opposed to growing upright. Most varieties are generally rated at 30,000 to 50,000 Scoville units.

<i>Capsicum cardenasii</i> Species of flowering plant

Capsicum cardenasii is a plant species in the genus Capsicum and the family Solanaceae. It is a diploid with 2n=2x=24. It is a member within the C. pubescens complex, a group of closely related Capsicum species. It is closely related to C. eximium. It is native to the Andes, and it can be found in Bolivia and Peru. The native name is ulupica.

<i>Capsicum eximium</i> Species of flowering plant

Capsicum eximium is a member of the genus Capsicum with 2n=2x=24, and native to the New World, specifically the Andean region of South America. It is one of the "purple-flowered" Capsicums along with Capsicum cardenasii and Capsicum pubescens. Like most other chili peppers, it is both pungent and self-compatible. It is a member of the Pubescenscomplex, a natural group of highly related Capsicums. Natural hybrids between C. pubescens as well as C. tovarii have been found, further supporting the relationship of these species.

<i>Capsicum flexuosum</i> Species of flowering plant

Capsicum flexuosum is a member of the genus Capsicum, and is native to the New World, specifically the southern regions of Brazil. Unlike most other chili peppers, it is only mildly pungent and has issues with self-compatibility.

<span class="mw-page-title-main">Capsiceae</span> Tribe of flowering plants

Capsiceae is a taxonomic tribe of bell peppers and related plants belonging to the Solanoideae subfamily within the family Solanaceae. The tribe was described by Barthélemy Charles Joseph Dumortier in 1827.

References

  1. "Fatalii's Empire - C. Rhomboideum".
  2. Jarret, Robert L. (August 22, 2008). "DNA Barcoding in a Crop Genebank: The Capsicum annuum Species Complex". The Open Biology Journal. 1 (1): 35–42. doi: 10.2174/1874196700801010035 .
  3. Russo, V. M. (2012-01-01). Peppers: Botany, Production and Uses. CABI. ISBN   9781845937843.
  4. 1 2 3 Barboza, Gloria E. (2011-02-11). "Lectotypifications, synonymy, and a new name in Capsicum (Solanoideae, Solanaceae)". PhytoKeys (2): 23–38. doi: 10.3897/PhytoKeys.2.730 . ISSN   1314-2011. PMC   3174431 . PMID   22171173.
  5. 1 2 Scaldaferro, Marisel A.; da Cruz, M. Victoria Romero; Cecchini, Nicolás M.; Moscone, Eduardo A. (2015-11-18). "FISH and AgNor mapping of the 45S and 5S rRNA genes in wild and cultivated species of Capsicum (Solananceae)". Genome. 59 (2): 95–113. doi:10.1139/gen-2015-0099. ISSN   0831-2796. PMID   26853884.
  6. 1 2 Moscone, Eduardo (2007). Spooner (ed.). "The Evolution of Chili Peppers (Capsicum - Solanaceae): a Cytogenetic Perspective". Acta Hort (745): 137–170. doi:10.17660/ActaHortic.2007.745.5. Archived from the original on 2017-03-05. Retrieved 2016-02-20.
  7. Barboza, Gloria E.; Bianchetti, Luciano De Bem (2005). "Three New Species of Capsicum (Solanaceae) and a Key to the Wild Species from Brazil". Systematic Botany. 30 (4): 863–871. doi:10.1600/036364405775097905. hdl: 11336/38870 . S2CID   85972658.
  8. Bo, María Laura; García, Carolina Carrizo (2015-01-02). "Pollen phenotyping and performance in rocoto chili (Capsicum pubescens Ruiz et Pav., Solanaceae)". Grana. 54 (1): 37–44. doi:10.1080/00173134.2014.985606. hdl: 11336/12419 . ISSN   0017-3134. S2CID   85079130.