According to the Molecular Biology and Evolution, volume 33, issue 9, September 2016, pages 2396-2400, https://doi.org/10.1093/molbev/msw117
https://academic.oup.com/mbe/article/33/9/2396/2579411
Malagasy people come from the Banjar, who were living in the southeast of Borneo.
Please follow the different links for further information.
https://fr.wikipedia.org/wiki/Banjarmasin
Anthropologists Ricaut and Brucato tell us more here, https://www.google.com/amp/s/theconversation.com/amp/how-the-banjar-people-of-borneo-became-ancestors-of-the-malagasy-and-comorian-people-90476?source=images
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