Featured Research

from universities, journals, and other organizations

Citrus indica Tanaka: A progenitor species of cultivated Citrus

Date:
November 10, 2011
Source:
Pensoft Publishers
Summary:
Recent findings show that C. indica occupies a special taxonomic position as reflected from the Karyomorphological data generated by them.

Recent findings of researchers from the North-Eastern Hill University, India show that C. indica occupies a special taxonomic position as reflected from the Karyomorphological data generated by them.
Credit: Image courtesy of Pensoft Publishers

Recent findings of researchers from the North-Eastern Hill University, India show that C. indica occupies a special taxonomic position as reflected from the Karyomorphological data generated by them. The study was published in the open-access journal Comparative Cytogenetics.

Related Articles


A group of enthusiastic cytogeneticists (Marlykynti Hynniewta, Surendra Kumar Malik and Satyawada Rama Rao) from North Eastern Hill University show that C. indica occupies a special taxonomic position, as reflected in the karyomorphological data.

The genus Citrus is an economically important horticultural crop known for its fruit and juice. In India, there are about 30 species of Citrus of which at least nine species are available throughout India, while 17 species are confined to the North-Eastern states of India, which have been classified as a hot spot for Citrus biodiversity and are threatened in their natural habitat as per the criteria fixed by the International Union for Conservation of Nature and Natural Resources (IUCN). Seven Indian Citrus species are considered endangered or nearly so, including C. Indica, C. macroptera, C. latipes, C. assamensis, C. ichangensis, C. megaloxycarpa and C. rugulosa.

C. indica (Tanaka, 1937) is supposed to be the most primitive species and perhaps the progenitor of cultivated Citrus. From the karyomorphological data it can be observed that the asymmetry index of different species of Citrus presently investigated had shown significant variation. C. medica, C. grandis and C. reticulata which are considered as true basic species are characteristic in having low asymmetry index of 1.87, 1.89 and 2.46 respectively. In the present investigation, the data from the karyomorphological observations on chromosome complements in 10 different Citrus species reflect that C. indica with its intermediate asymmetry index value (1.94) may be regarded as a true progenitor of cultivated Citrus.

This study also supports the previous report that there are three true species of Citrus, viz. C. grandis, C. reticulata and C. medica.


Story Source:

The above story is based on materials provided by Pensoft Publishers. Note: Materials may be edited for content and length.


Journal Reference:

  1. Marlykynti Hynniewta, Surendra Kumar Malik, Rao Rama Satyawada. Karyological studies in ten species of Citrus (Linnaeus, 1753) (Rutaceae) of North-East India. Comparative Cytogenetics, 2011; 5 (4): 277 DOI: 10.3897/CompCytogen.v5i4.1796

Cite This Page:

Pensoft Publishers. "Citrus indica Tanaka: A progenitor species of cultivated Citrus." ScienceDaily. ScienceDaily, 10 November 2011. <www.sciencedaily.com/releases/2011/11/111110125834.htm>.
Pensoft Publishers. (2011, November 10). Citrus indica Tanaka: A progenitor species of cultivated Citrus. ScienceDaily. Retrieved October 31, 2014 from www.sciencedaily.com/releases/2011/11/111110125834.htm
Pensoft Publishers. "Citrus indica Tanaka: A progenitor species of cultivated Citrus." ScienceDaily. www.sciencedaily.com/releases/2011/11/111110125834.htm (accessed October 31, 2014).

Share This



More Plants & Animals News

Friday, October 31, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

How A Chorus Led Scientists To A New Frog Species

How A Chorus Led Scientists To A New Frog Species

Newsy (Oct. 30, 2014) A frog noticed by a conservationist on New York's Staten Island has been confirmed as a new species after extensive study and genetic testing. Video provided by Newsy
Powered by NewsLook.com
Surfer Accidentally Stands on Shark, Gets Bitten

Surfer Accidentally Stands on Shark, Gets Bitten

AP (Oct. 30, 2014) A 20-year-old competition surfer said on Thursday he accidentally stepped on a shark's head before it bit him off the Australian east coast. (Oct. 30) Video provided by AP
Powered by NewsLook.com
Ebola Inflicts Heavy Toll on Guinean Potato Trade

Ebola Inflicts Heavy Toll on Guinean Potato Trade

AFP (Oct. 30, 2014) The Ebola epidemic has seen Senegal and Guinea Bissau close its borders with Guinea and the economic consequences have started to be felt, especially in Fouta Djallon, where the renowned potato industry has been hit hard. Duration: 02:01 Video provided by AFP
Powered by NewsLook.com
Genetically Altered Glowing Flower on Display in Tokyo

Genetically Altered Glowing Flower on Display in Tokyo

Reuters - Innovations Video Online (Oct. 30, 2014) Just in time for Halloween, a glowing flower goes on display in Tokyo. Instead of sorcery and magic, its creators used science to genetically modify the flower, adding a naturally fluorescent plankton protein to its genetic mix. Ben Gruber reports. Video provided by Reuters
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Plants & Animals

Earth & Climate

Fossils & Ruins

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins