Genetic diversity of wild banana (<Emphasis Type="Italic">Musa balbisiana</Emphasis> Colla) in China as revealed by AFLP markers |
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| Authors: | Xiao-Lan Wang Tzen-Yuh Chiang Nicolas Roux Gang Hao Xue-Jun Ge |
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| Institution: | (1) Centre for Functional Genomics and Microarray, Guangzhou University, Guangzhou, 510405, China;(2) Department of Life Sciences, Cheng-Kung University, Tainan, 701, Taiwan, ROC;(3) INIBAP, International Network for the Improvement of Banana and Plantain, Parc Scientifique Agropolis II, 34397 Montpellier Cedex 5, France;(4) College of Life Sciences, South China Agricultural University, Guangzhou, 510642, China;(5) State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, China |
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| Abstract: | Wild banana Musa balbisiana Colla is one of the progenitors of cultivated bananas and plantains. It is native to Southeast Asia and the western Pacific.
South China represents the northern limit of its distribution range. The genetic diversity of Musa balbisiana was assessed by the amplified fragment length polymorphism (AFLP) fingerprinting in 15 populations of China. Four primer
pairs produced 199 discernible loci. High levels of genetic diversity were detected, with P = 78.5%, H
E = 0.241, and H
pop = 0.3684 at population level, and P = 100%, H
T = 0.3362 and H
sp = 0.5048 at species level. Significant genetic differentiation among populations was detected based on Hickory’s analysis
(27.6%), Shannon’s diversity index (27.0%) and AMOVA (27.1%). The AFLP results are discussed and compared with data obtained
by microsatellites method. The estimates of genetic diversity and differentiation between each pair of populations computed
with microsatellites and AFLP markers were not significantly correlated. Conservation strategies for Musa balbisiana in China are proposed. |
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| Keywords: | AFLP Genetic diversity Microsatellites Musa balbisiana Wild banana |
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