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Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Monocots
Cladus: Commelinids
Ordo: Zingiberales

Familia: Musaceae
Genus: Musa
Sectiones: M. sect. Callimusa – M. sect. Ingentimusa – M. sect. Musa

Species: M. acuminata – M. arfakiana – M. argentii – M. arunachalensis – M. aurantiaca – M. azizii – M. balbisiana – M. banksii – M. barioensis – M. basjoo – M. bauensis – M. beccarii – M. beccarii – M. boman – M. borneensis – M. bukensis – M. campestris – M. celebica – M. cheesmanii – M. chunii – M. coccinea – M. cylindrica – M. exotica – M. fitzalanii – M. flaviflora – M. gracilis – M. griersonii – M. haekkinenii – M. hirta – M. indandamanensis – M. ingens – M. insularimontana – M. itinerans – M. jackeyi – M. johnsii – M. juwiniana – M. kamengensis – M. kattuvazhana – M. lanceolata – M. laterita – M. lawitiensis – M. lokok – M. lolodensis – M. lutea – M. maclayi – M. mannii – M. markkuana – M. markkui – M. monticola – M. muluensis – M. nagensium – M. nanensis – M. ochracea – M. ornata – M. paracoccinea – M. peekelii – M. puspanjaliae – M. rosea – M. rubinea – M. rubra – M. ruiliensis – M. sabuana – M. sakaiana – M. salaccensis – M. sanguinea – M. schizocarpa – M. serpentina – M. shankarii – M. siamensis – M. sikkimensis – M. splendida – M. textilis – M. thomsonii – M. tonkinensis – M. troglodytarum – M. tuberculata – M. velutina – M. violascens – M. viridis – M. voonii – M. yamiensis – M. yunnanensis – M. zaifui

Nothospecies: M. × alinsanaya – M. × formobisiana – M. × paradisiaca
Name

Musa L., Sp. Pl. 2: 1043 (1753)

Musa × paradisiaca L., Sp. Pl. 2: 1043. (1753), vide Green (1929) Lectotype designated by Argent, G.C.G. (1993) Musa L. Regnum Veg. 127: 68.

Synonyms

Heterotypic
Karkandela Raf., Sylva Tellur.: 106 (1838)

References

Linnaeus, C. 1753. Species Plantarum 2: 1043.
Green, M.L., (1929) Prop. Brit. Bot. 193.
Häkkinen, M. & Väre, H. 2008. Typification and check-list of Musa L. names (Musaceae) with nomenclatural notes, Adansonia, III, 30: 63–112. Full text PDF
Govaerts, R. et al. 2018. Musa in World Checklist of Selected Plant Families. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the internet. Accessed: 2018 Dec. 9. Reference page.
International Plant Names Index. 2015. Musa. Published online. Accessed: Dec.15 2015.
Tropicos.org 2014. Musa. Missouri Botanical Garden. Published on the internet. Accessed: 2014 Feb. 6.

Vernacular names
Akan: Kwadu
العربية: مَوْز
bosanski: Banana
Deutsch: Banane
eʋegbe: Akɔɖu
English: Banana
suomi: Banaanit
Nordfriisk: Banaan
Hawaiʻi: Mai‘a
hrvatski: Banana
հայերեն: Ադամաթզենի
íslenska: Bjúgaldin
italiano: Banano
polski: Banan
português: Banana
русский: Банан
српски / srpski: Банана
svenska: Banansläktet
українська: Банан
中文: 芭蕉属

Musa is one of two or three genera in the family Musaceae. The genus includes flowering plants producing edible bananas and plantains. Around 70 species of Musa are known, with a broad variety of uses.

Though they grow as high as trees, banana and plantain plants are not woody and their apparent "stem" is made up of the bases of the huge leaf stalks. Thus, they are technically gigantic herbaceous plants.

Musa species are used as food plants by the larvae of some Lepidoptera species, including the giant leopard moth and other Hypercompe species, including H. albescens (only recorded on Musa), H. eridanus, and H. icasia.

Description

Banana plants represent some of the largest herbaceous plants existing in the present, with some reaching up to 9 metres (30 ft) in height. The large herb is composed of a modified underground stem (rhizome), a false trunk, a network of roots, and a large flower spike. The false trunk is an aggregation of the basal portion of leaf sheathes; it is not until the plant is ready to flower that a true stem grows up through the sheath and droops back down towards the ground.[2] At the end of this stem grows a peduncle with many female flowers protected by large purple-red bracts. The extension of the stem (this part called the rachis) continues growth downward where a terminal male flower grows. The leaves originate from a pseudostem and unroll to show a leaf blade with two lamina halves.[3] Musa reproduces by both sexual (seed) and asexual (suckers) processes, utilizing asexual means when producing sterile (non-seedy) fruits. Further qualities to distinguish Musa include spirally arranged leaves, fruits as berries, latex-producing cells present, 5 connate and 1 member of the inner whorl distinct, and petiole with one row of air channels.[4]
Systematics and taxonomy
History

The genus Musa was first named by Carl Linnaeus in 1753.[5] The name is a Latinization of the Arabic name for the fruit, mauz (موز). Mauz meaning Musa is discussed in the 11th-century Arabic encyclopedia The Canon of Medicine, which was translated to Latin in medieval times and well known in Europe.[Note 1] Muz is also the Turkish, Persian, and Somali name for the fruit. Some sources assert that Musa is named for Antonius Musa, physician to the Emperor Augustus.[6] According to Roger Blench, the ultimate origin of musa is in the Trans–New Guinea languages, whence they were borrowed into the Austronesian languages and across Asia, via the Dravidian languages of India, into Persian, Greek and Arabic as a Wanderwort:[7]

Possible transmission of musa from New Guinea to Latin Trans–New Guinea Austronesian Dravidian Indic Persian Greek Latin
#mugu #mugu > muku > muʼu
(e.g. Maiadom moɁe) mōte mocā mōz ~ mūz mozā musa

The word "banana" came to English from Spanish and Portuguese, which in turn apparently obtained it from a West African language (possibly Wolof).[8]

From the time of Linnaeus until the 1940s, different types of edible bananas and plantains were given Linnaean binomial names, such as Musa cavendishii, as if they were species. In fact, edible bananas have an extremely complicated origin involving hybridization, mutation, and finally selection by humans. Most edible bananas are seedless (parthenocarpic), hence sterile, so they are propagated vegetatively. The giving of species names to what are actually very complex, largely asexual, hybrids (mostly of two species of wild bananas, Musa acuminata and Musa balbisiana) led to endless confusion in banana botany. In the 1940s and 1950s, it became clear to botanists that the cultivated bananas and plantains could not usefully be assigned Linnean binomials, but were better given cultivar names.
Food served on a banana leaf, a traditional way of serving food more popular in southern India
Sections

Musa sectional systematics possesses a history dating back to 1887. In that year, M.P. Sagot published “Sur Le Genre Bananier”, where the genus Musa was first formally classified.[9] In this article, Sagot grouped the Musa species into three groups, although no section names were assigned to them. The grouping was based on morphological traits, establishing the trio as:

Bananas with fleshy fruit;
Ornamental bananas with upright inflorescences and bracts that were vibrantly colored; and
Bananas that were giant in size.

In 1893, five years after Sagot's article, J.G. Baker made the first formal designation of Musa sections. To do so, he named three subgenera which almost paralleled the sections that had been described by Sagot.[10] These sections were:

M. subg. Physocaulis Baker: a group defined by a bract with many flowers, inedible fruits, and a bottle-shaped stem.
M. subg. Rhodochlamys Baker: brightly-colored bracts with few flowers, usually inedible fruits, and cylindrical stems.
M. subg. Eumusa Baker which possessed green, brown, or dull-violet bracts with many flowers, usually edible fruits, and cylindrical stems.

After this classification, 50 years passed without revision to the banana sections. In 1947, Cheeseman reclassified the taxon based on morphological features and chromosome number.[11] This project proposed 4 sections:

M. sect. Eumusa Cheesman (2n = 2x = 22)
M. sect. Rhodochlamys (Baker) Cheesman (2n = 2x = 22)
M. sect. Australimusa Cheesman (2n = 2x = 20)
M. sect. Callimusa Cheesman (2n = 2x = 20)

The addition of another Musa section came in 1976 in G.C.G. Ardent's "The wild bananas of Papua New Guinea". The added section, M. sect. Ingentimusa Ardent, was based on a single species, Musa ingens.[12] This designation put the number of sections in Musa at five: Eumusa, Rhodochlamys, Callimusa, Australimusa, and Ingentimusa .

In the 21st century, genomics have become cheaper, more efficient, and more accurate, and Musa genetic research has increased exponentially. Research was conducted around a diversity of genomic markers (cpDNA, nrDNA, rDNA, introns, various spacers, etc.). The results of many of these studies suggested that the five sections of Musa defined by morphology (and listed above) were not monophyletic.[13][14]

Based on the incorrect section grouping, Markku Häkkinen proposed another reclassification of the Musa sections in 2013. Using a multitude of genetic evidence and markers from other studies, Häkkinen suggested the reduction of five Musa sections into two: Musa and Callimusa.[14] Unlike sectional classifications of the past, this hypothesis was based on genetic markers rather than morphological features or chromosome number. The two groups were generally formed by the clustering of the previously defined groups:

Musa sect. Rhotochlamys and M. sect. Eumusa became M. sect. Musa
M. sect. Ingetimusa, M. sect. Callimusa and M. sect. Australimusa became M. sect. Callimusa

The advance of genomic analysis technologies and further data on the relatedness of Musa species, formulated Häkkinen's two sections and later corroborated them as correct subcategories for the genus.[15][16][17] The history of Musa sections provides an example of genomics superseding morphological evidence and thus classifications.
Species

The World Checklist of Selected Plant Families accepts 68 species and two primary hybrids, as of January 2013, which are listed below.[18] The assignment to sections is based on GRIN (where this gives the species),[19] regrouped according to Wong et al.[20]
Section Callimusa (incorporating Australimusa)
Fruit stalk of Musa sp.
Banana flowers

[A] and [C] indicate known placement in the former sections Australimusa and Callimusa, respectively.[21]

M. × alinsanaya R.V.Valmayor [A]
M. azizii Häkkinen
M. barioensis Häkkinen
M. bauensis Häkkinen & Meekiong [C]
M. beccarii N.W.Simmonds [A][Note 2]
M. boman Argent [A]
M. borneensis Becc. [C]
M. bukensis Argent [A]
M. campestris Becc. [C]
M. coccinea Andrews [C] – scarlet banana
M. exotica R.V.Valmayor [C]
M. fitzalanii F.Muell. [A] – extinct
M. gracilis Holttum [C]
M. hirta Becc. [A]
M. insularimontana Hayata [A]
M. jackeyi W.Hill [A]
M. johnsii Argent [A]
M. lawitiensis Nasution & Supard. [C]
M. lokok Geri & Ng
M. lolodensis Cheesman [A]
M. maclayi F.Muell. ex Mikl.-Maclay [A]
M. monticola M.Hotta ex Argent [A]
M. muluensis M.Hotta [A]
M. paracoccinea A.Z.Liu & D.Z.Li [C]
M. peekelii Lauterb. [A]
M. salaccensis Zoll. ex Backer [A]
M. textilis Née [A] – Abacá
M. × troglodytarum L. [A] – the cultivated Fe'i bananas
M. tuberculata M.Hotta [A]
M. violascens Ridl. [C]
M. viridis R.V.Valmayor et al.
M. voonii Häkkinen

Section Ingentimusa

M. ingens N.W.Simmonds

Section Musa (incorporating Rhodochlamys)
Musa acuminata with inflorescence
Japanese fiber banana (Musa basjoo) flowering at Cotswold Wildlife Park
Musa ornata 'Roxburgh' in China
Pink banana (Musa velutina) flower

M. acuminata Colla – wild seeded banana, one of the two main ancestors of modern edible banana cultivars
M. acuminata subsp. zebrina [= M. sumatrana] – blood banana
M. aurantiaca G.Mann ex Baker
M. balbisiana Colla – wild seeded banana, one of the two main ancestors of modern edible banana cultivars
M. banksii F.Muell.
M. basjoo Siebold & Zucc. ex Iinuma – Japanese fiber banana, hardy banana[Note 3]
M. cheesmanii N.W.Simmonds
M. chunii Häkkinen
M. griersonii Noltie
M. itinerans Cheesman
M. laterita Cheesman
M. mannii H.Wendl. ex Baker
M. nagensium Prain
M. ochracea K.Sheph.
M. ornata Roxb.
Musa × paradisiaca L. = M. acuminata × M. balbisiana – many of the cultivated edible bananas
M. rosea Baker
M. rubinea Häkkinen & C.H.Teo
M. rubra Wall. ex Kurz
M. sanguinea Hook.f.
M. schizocarpa N.W.Simmonds
M. siamensis Häkkinen & Rich.H.Wallace
M. sikkimensis Kurz
M. thomsonii (King ex Baker) A.M.Cowan & Cowan
M. velutina H.Wendl. & Drude – pink banana
M. yunnanensis Häkkinen & H.Wang – Yunnan banana, wild forest banana
M. zaifui Häkkinen & H.Wang

Section undetermined or unknown
Varigated form of Musa sp.
Musa sp.

M. arfakiana Argent
M. celebica Warb. ex K.Schum.
M. juwiniana Meekiong
M. kattuvazhana K.C.Jacob
M. lanceolata Warb. ex K.Schum.
M. lutea R.V.Valmayor et al.
M. sakaiana Meekiong et al.
M. shankarii Subba Rao & Kumari
M. splendida A.Chev.
M. tonkinensis R.V.Valmayor et al.
M. yamiensis C.L.Yeh & J.H.Chen

Formerly placed here

Ensete davyae (Stapf) Cheesman (as M. davyae Stapf)
Ensete gilletii (De Wild.) Cheesman (as M. gilletii De Wild. or M. martretiana A.Chev.)
Ensete glaucum (Roxb.) Cheesman (as M. glauca Roxb.)
Ensete lasiocarpum (Franch.) Cheesman (as M. lasiocarpa Franch.) – also placed in a separate genus as Musella lasiocarpa (Franch.) C.Y.Wu ex H.W.Li[22]
Ensete livingstoniana (J. Kirk) Cheesman (as M. livingstoniana J.Kirk)
Ensete perrieri (Stapf) Cheesman (as M. perrieri Claverie)
Ensete superbum (Roxb.) Cheesman (as M. superba Roxb.)
Ensete ventricosum (Welw.) Cheesman (as M. arnoldiana De Wild., M. ensete J.F.Gmel. or M. ventricosum (Welw.) Cheesman)
Heliconia bihai (L.) L. (as M. bihai L.)

Cultivated bananas
Main articles: Banana and Plantain (cooking)
Left to right: plantains, red bananas, latundan, and Cavendish bananas

A number of distinct groups of plants bearing edible fruit have been developed from species of Musa. In English, fruits which are sweet and used for dessert are usually called "bananas", whereas starchier varieties used for cooking are called "plantains", but these terms do not have any botanical significance. By far the largest and now the most widely distributed group of cultivated bananas is derived from section Musa, particularly M. acuminata and M. balbisiana, either alone or in various hybrid combinations. The next but much smaller group is derived from members of section Callimusa (previously classified as Australimusa) and is restricted in importance to Polynesia. Of even more restricted importance are small groups of hybrids from Papua New Guinea; a group from section Musa to which Musa schizocarpa has also contributed, and a group of hybrids between section Musa and section Callimusa.

Banana and plantains are the fourth most produced food globally surpassed only by the staple crops of rice, wheat and maize.
Properties

Plants of the Musa spp. including roots, flowers and fruits have been used in the folk medicine cultures of Africa, Asia, India and the Americas. Modern studies examining the properties of the fruits have found diversity of bioactive compounds among genotypes compared with commercially grown cultivars.[23]
S

ection Musa cultivars

When the Linnaean binomial system was abandoned for cultivated bananas, an alternate genome-based system for the nomenclature of edible bananas in section Musa was devised. Thus, the plant previously known by the "species" name Musa cavendishii became Musa (AAA Group) 'Dwarf Cavendish'. The "new" name shows clearly that 'Dwarf Cavendish' is a triploid, with three sets of chromosomes, all derived from Musa acuminata, which is designated by the letter "A". When Musa balbisiana is involved, the letter "B" is used to denote its genome. Thus, the cultivar 'Rajapuri' may be called Musa (AAB Group) 'Rajapuri'. 'Rajapuri' is also a triploid, expected to have two sets of chromosomes from Musa acuminata and one from Musa balbisiana. In the genome of edible bananas from section Musa, combinations such as AA, BB, ABB, BBB and even AAAB can be found.

For a more detailed explanation of this system and a list of some edible banana and plantain cultivars using it, see the List of banana cultivars.

Fe'i-type cultivars
Main article: Fe'i banana

No such nomenclature system has been developed for the group of edible bananas derived from section Callimusa. This group is known generally as the "Fe'i" or "Fehi" bananas, and numerous cultivars are found in the South Pacific region. They are very distinctive plants with upright fruit bunches, featuring in three of Paul Gauguin's paintings. The flesh can be cooked before eating and is bright orange, with a high level of beta carotene. Fe'i bananas are no longer very important for food, as imported foods have grown in popularity, although some have ritual significance. Investigations are under way to use the Fe'i karat bananas (the name derives from "carrot" due to the intense orange-yellow color of the fruit) in prevention of childhood blindness in Pohnpei.[24] Fe'i bananas probably derive mainly from Musa maclayi, although their origins are not as well understood as the section Musa bananas. Cultivars can be formally named, as e.g. Musa (Fe'i Group) 'Utafun'.
See also

Banana
Ensete (false bananas); for more information about Musella, also see Musella lasiocarpa
Plantain

Notes

Arabic Mauz meaning Musa or banana is in the medieval Arabic medical encyclopedia by Avicenna, which is online at Avicenna: Book Two. See also "Musa" at Dictionary.Reference.com. See also Musacées in Dictionnaire Étymologique Des Mots Français D'Origine Orientale, by L. Marcel Devic (year 1876).
Musa beccarii is reported as having a haploid chromosome number of 9 or 10, the latter due to multivalent formation during meiosis. Although genetically it nestles comfortably within section Callimusa the chromosome number needs clarification.

Musa basjoo is the most cold hardy species of Musa, growing and fruiting successfully in outdoor cultivation in the British Isles and British Columbia.

References

GRIN (2009-02-19). "Genus: Musa L." Taxonomy for Plants. National Germplasm Resources Laboratory, Beltsville, Maryland: USDA, ARS, National Genetic Resources Program. Archived from the original on 2012-10-11. Retrieved 2011-02-06.
The Editors of Encyclopaedia Britannica. “Banana.” Encyclopædia Britannica, Encyclopædia Britannica, Inc., 22 Aug. 2019, www.britannica.com/plant/banana-plant.
Rouard, Mathieu, et al. “Morphology of Banana Plant.” The Banana Knowledge Platform of the ProMusa Network, Feb. 2019, www.promusa.org/Morphology+of+banana+plant.
Judd, Walter S. Plant Systematics a Phylogenetic Approach. Sinauer Assoc., 2007.
"Musa". World Checklist of Selected Plant Families. Royal Botanic Gardens, Kew. Retrieved 2013-01-10.
Bailey, Liberty Hyde (1914–1917). The Standard Cyclopedia of Horticulture. Vol. 4.. New York: Macmillan. OCLC 2768915.. Pp. 2076–9.
Blench, Roger (2016). "Things your classics master never told you: a borrowing from Trans New Guinea languages into Latin". Academia.edu. Academia, Inc.
"Banana" at Dictionary.Reference.com.
Sagot, M. P. “Sur Le Genre Bananier.” Bulletin De La Société Botanique De France, vol. 34, no. 7, 1887, pp. 328–330., doi:10.1080/00378941.1887.10830263.
Baker, J.G. 1893. A synopsis of the genera and species of Museae. Ann. Bot. (Oxford) 7: 189–229.
Cheesman, E.E. 1947 [pub. 1948]. Classification of the bananas. II. The genus Musa L. Kew Bull. 2: 106–117. http://dx.doi.org/10.2307/4109207
Argent, G.C.G. 1976. The wild bananas of Papua New Guinea. Notes Roy. Bot. Gard. Edinburgh 35: 77–114.
Wong C, Kiew R, Argent GCG, Set O, Lee SK, Gan YY. Assessment of the validity of the sections in Musa (Musaceae) using AFLP. Ann Bot-London. 2002; 90: 231–238.
Häkkinen, Markku. “Reappraisal of Sectional Taxonomy in Musa (Musaceae).” Taxon, vol. 62, no. 4, 2013, pp. 809–813., doi:10.12705/624.3.
Feng, Huimin, et al. “Molecular Phylogeny of Genus Musa Determined by Simple Sequence Repeat Markers.” Plant Genetic Resources, vol. 14, no. 3, 2015, pp. 192–199., doi:10.1017/s1479262115000222.
Lamare, Animos; et al. (2017). "Phylogenetic Implications of the Internal Transcribed Spacers of NrDNA and Chloroplast DNA Fragments of Musa in Deciphering the Ambiguities Related to the Sectional Classification of the Genus". Genetic Resources and Crop Evolution. 64 (6): 1241–1251. doi:10.1007/s10722-016-0433-9. S2CID 20705065.
Čížková, J; Hřibová, E; Christelová, P; Van den Houwe, I; Häkkinen, M; et al. (2015). "Molecular and Cytogenetic Characterization of Wild Musa Species". PLOS ONE. 10 (8): e0134096. Bibcode:2015PLoSO..1034096C. doi:10.1371/journal.pone.0134096. PMC 4529165. PMID 26252482.
Search for "Musa". World Checklist of Selected Plant Families. Royal Botanic Gardens, Kew. Retrieved 2013-01-10.
GRIN (2009-02-19). "Species in GRIN for genus Musa". Taxonomy for Plants. National Germplasm Resources Laboratory, Beltsville, Maryland: USDA, ARS, National Genetic Resources Program. Archived from the original on 2012-12-12. Retrieved 2011-02-06.
Wong, C.; Kiew, R.; Argent, G.; Set, O.; Lee, S.K. & Gan, Y.Y. (2002). "Assessment of the Validity of the Sections in Musa (Musaceae) using ALFP". Annals of Botany. 90 (2): 231–238. doi:10.1093/aob/mcf170. PMC 4240415. PMID 12197520.
Office of the Gene Technology Regulator (2008). The Biology of Musa L. (banana) (PDF). Australian Government.
"Ensete lasiocarpum". World Checklist of Selected Plant Families. Royal Botanic Gardens, Kew. Retrieved 2013-01-10.
Pearson, Valerie A. (2016). Bananas: Cultivation, Consumption and Crop Diseases. Nova Science Publishers. p. 1. ISBN 978-1-63485-418-4.

Coghlan, Andy (2004-07-10). "Orange banana to boost kids' eyes". New Scientist.

Further reading
Constantine, D. R. (1999): Musa - an annotated list of the species [1][permanent dead link]. Version of 2008-SEP-03. Retrieved 2008-SEP-03.
Hedrick, U.P. (ed.) (1919): Sturtevant's Edible Plants of the World. J.B. Lyon Co., Albany.
Nelson, S.C.; Ploetz, R.C. & Kepler, A.K. (2006): Musa species (banana and plantain).
Sharrock, Suzanne (2001). "Diversity in the genus Musa, focus on Australimusa" (PDF). INIBAP Annual Report. 2000: 14–19.

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