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Determining developmental instability via fluctuating asymmetry in the shell shape of Venerupis philippinarum (Manila Clam)

By: Kurt Marche L. Cabiluna, Sharon Rose M. Tabugo

Key Words: Venerupis philippinarum, Developmental instability, Fluctuating asymmetry, Procrustes ANOVA, SAGE

Int. J. Biosci. 11(4), 73-84, October 2017.


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This exploratory study look into the nature and variation of Manila Clams (Venerupis philippinarum), an edible species of saltwater clam native to Japan but has been cultivated, commercially harvested and considered as the second most important bivalve grown in aquaculture in the Philippines also worldwide. Fluctuating Asymmetry (FA) is apopular tool to estimate the quality, health of individuals and populations and used to measure developmental stability or the organism’s ability to buffer environmental and genetic perturbations. This study demonstrated the use of FA for monitoring developmental stability of bivalve species V. philippinarum. It investigated the differences of FA of three different morphotypes from one population. Fifteen anatomical landmarks were used and were subjected to Procrustes superimposition and Principal Component Analysis (PCA) using “Symmetry and Asymmetry in Geometric Data” (SAGE) program. Results yield significant evidence of FA for all the morphotypes. Possible explanation for high levels of FA detected may rise from the differences in genetic composition of the populations resulting in different tolerance to stress. Results revealed that all morphotypes exhibited high FA value thus, relatively considered unstable morphotypes with poor developmental homeostasis. Hence, indicate genetic and environmental stress and has the inability to buffer such stress. In this context, it is perceived that there is a direct relationship between FA and developmental instability. Along this line, morphotype B have relatively the lowest FA compared to other morphotypes, providing that stabilizing selection is at work and thus, relatively fit for cultivation to maximize yield for food production.

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Determining developmental instability via fluctuating asymmetry in the shell shape of Venerupis philippinarum (Manila Clam)

Albarrán-Lara AL, Mendoza-Cuenca L, Valencia-Avalos S, González-Rodríguez A,  Oyama K. 2010. Leaf fluctuating asymmetry increases with hybridization and introgression between Quercus magnoliifolia and Quercus resinosa (Fagaceae) through an altitudinal gradient in Mexico. International Journal of Plant Sciences171, 310-322.

Antuaco SP, Leyesa M. 2004. Fluctuating asymmetry: an early warning indicator of environmental stress. Asian Journal of Biology

Education2, 35-38.

Antunes SC, Freitas R, Figueira E, Gonçalves F, Nunes B. 2003. Biochemical effects of acetaminophen in aquatic species: edible clams Venerupis decussata and Venerupis philippinarum. Environmental Science and Pollution Research20, 6658-6666.

Britten HB. 1996. Meta‐analyses of the association between multilocus heterozygosity and fitness. Evolution50, 2158-2164.

Campbell N, Reece J. 2005. Biology. San Francisco, USA: Benjamin Cummings, 480-481.

Ducos MB, Tabugo SRM. 2015. Fluctuating asymmetry as bioindicator of stress and developmental instability in Gafrarium tumidum (ribbed venus clam) from coastal areas of Iligan Bay, Mindanao, Philippines. AACL Bioflux8, 292-300.

Ducos MB, Tabugo SRM.  2014. Fluctuating asymmetry as an indicator of ecological stress and developmental instability of Gafrarium tumidum (ribbed venus clam) from Maak and Lagoon Camiguin Island, Philippines. AACL Bioflux7, 516-523.

Galbo KR, Tabugo SRM. 2014. Fluctuating asymmetry in the wings of Culex quinquefasciatus (Say) (Diptera: Culicidae) from selected barangays in Iligan City, Philippines. AACL Bioflux7,357-364.

Goulletquer P. 2005.Cultured Aquatic Species Information Programme. FAO Fisheries and Aquaculture Department,1-22.

Graham JH, Raz S, Hagit H, Nevo E. 2010.Fluctuating Asymmetry: Methods, Theory and Applications. Symmetry 2, 466-495.

Graham JH, Freeman DC, Emlen JM. 1993. Developmental stability:  A sensitive indicator of populations under stress. In: Landis, WG; Hughes, JS; Lewis MA (Eds.). Environmental Toxicology and Risk Assessment, ASTM STP, Philadelphia, PA: American Society for Testing Materials, 1179.

Klingenberg CP, McIntyre GS, Zaklan SD. 1998. Left-right asymmetry of fly wings and the evolution of body axes. Proceedings of the Royal Society of London B Biological Sciences 265, 1255–1259.

Kotiaho JS, Tomkins JL. 2001. The discrimination of alternative male morphologies. Behavioral Ecology12, 553-557.

Leary RF, Allendorf  FW. 1989. Fluctuating asymmetry as an indicator of stress: implications for conservation biology. Trends in Ecology &Evolution4, 214-217.

Marquez E. 2006. Sage: symmetry and asymmetry

in geometric data. Ver 1.04. Michigan, USA: University of Michigan Museum of Zoology, 2-7.

Mpho M, Holloway GJ, Callaghan A. 2000. The effect of larval density on life history and wing asymmetry in the mosquito Culex pipiens. Bulletin of Entomological Research 90, 279-283.

Palmer AR, Strobeck C. 2003. Fluctuating asymmetry analyses revisited. In: Polak M, Ed. Developmental Instability: causes and consequences. New York, USA: University Press, 279-280.

Palmer RA. 1994. Fluctuating asymmetry analysis: a primer. In: Markow TA (Ed.) Developmental Instability: Its Origins and Evolutionary Implications. London: Kluwer Academic, 335-364.

Palmer AC, Strobeck C.1986. Fluctuating

asymmetry – measurement, analysis, patterns. Annual Review of Ecology and Systematics 17, 391-421.

Parsons PA.1990. Fluctuating asymmetry: an epigenetic measure of stress. Biological Reviews65,131–145.

Qi Z. 1998. Commercially Important Mollusks in China. Beijing, China: China Agricultural Press, 325.

Samuels ML, Casellsa G, McCabe GP. 1991 Interpreting blocks and random factors: rejoiner. Journals of the American Statistical Association 86, 798-808.

Utayopas P. 2001. Fluctuating Asymmetry in Fishes Inhabiting Polluted and Unpolluted Bodies of Water in Thailand. Thammasat International Journal of Science and Technology6, 10-20.

Zakharov VM. 1989. Future prospects for population phenogenetics. Soviet Scientific  Reviews Series, Section F. Physiology and General Biology Reviews 4, 1-79.

Kurt Marche L. Cabiluna, Sharon Rose M. Tabugo.
Determining developmental instability via fluctuating asymmetry in the shell shape of Venerupis philippinarum (Manila Clam).
Int. J. Biosci. 11(4), 73-84, October 2017.
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