Taxonomic discrimination of species of the genus Metapenaeus Wood-Mason, 1891 from Indian waters through morphometric and molecular studies
2020
Chennuri, Sathish | Pathak, Vikas | Rao, Madhusudhana | Gangan, Shardul Sham | Pavan-Kumar, A. | Jaiswar, Ashok Kumar
The present study identified useful characters in the discrimination of species of the genus Metapenaeus, viz., Metapenaeus affinis, M. alcocki, M. brevicornis, M. dobsoni, M. kutchensis, M. monoceros and M. moyebi, in Indian waters, on the basis of morphometric and molecular studies. Out of 40 morphometric measurements, a correlation matrix of 14 morphometric measurements: carapace width, carapace depth, length of rostrum, of antennular peduncle, of telson, and of 6ᵗʰ abdominal somite; 6ᵗʰ abdominal somite depth, antennal scale length, merus length of 1ˢᵗ pereopod, movable finger length of 1ˢᵗ pereopod, movable finger length of 2ⁿᵈ pereopod, movable finger length of 3ʳᵈ pereopod, merus length of 5ᵗʰ pereopod, and carpus length of 5ᵗʰ pereopod, were all found to be important in discriminating those seven species. The generated classification matrix showed 100% accurate classification of six species, except M. kutchensis (87.09%). DNA barcodes (588 bp) were generated for Metapenaeus brevicornis, M. dobsoni, M. ensis, M. kutchensis and M. monoceros. A simple identification key is thus proposed for nine species of Metapenaeus from Indian waters.
Show more [+] Less [-]AGROVOC Keywords
Bibliographic information
This bibliographic record has been provided by National Agricultural Library