• Welcome to BirdForum, the internet's largest birding community with thousands of members from all over the world. The forums are dedicated to wild birds, birding, binoculars and equipment and all that goes with it.

    Please register for an account to take part in the discussions in the forum, post your pictures in the gallery and more.
ZEISS DTI thermal imaging cameras. For more discoveries at night, and during the day.

Scaly-sided Merganser (1 Viewer)

Gang Liu, Li-zhi Zhou and Chang-ming Gu. Complete sequence and gene organization of the mitochondrial genome of scaly-sided merganser (Mergus squamatus) and phylogeny of some Anatidae species. Molecular Biology Reports. Online First

Abstract

...The results are different from the present classification, and we support Lophodytes cucullatus and Mergullus [sic] albellus to be members of the genus Mergus...
 
Last edited:
...The results are different from the present classification, and we support Lophodytes cucullatus and Mergullus [sic] albellus to be members of the genus Mergus...

Had a look at this paper; with no species from closely related Bucephala included in the analysis, their results are very uncertain.
 
Had a look at this paper; with no species from closely related Bucephala included in the analysis, their results are very uncertain.
The results are certainly wrong... But as they don't appear to have listed the sequences they used (besides their own squamatus), it is hard to understand what happened exactly.
The fact that they recover Smew sister to Hooded Merg with 100% support suggests they used d-loops from Donne-Goussé et al. 2002 ([pdf here], see Fig. 5A) -- the Smew sequence in this study is a Hooded Merg sequence...
The cyt-b sequences of Mergus spp. other than squamatus are presumably taken from Gonzalez et al. 2009 [pdf here], because these are the only ones found in GenBank for these species; but these are likely to have problems as well (the Red-breasted Merg and Goosander sequences are much more similar than would be expected based on other markers for which sequences are available for multiple individual (e.g., d-loop, cox1); the RB Merg sequence is low-quality -- not complete and many nucleotides not identified).
 
Last edited:
The results are certainly wrong... But as they don't appear to have listed the sequences they used (besides their own squamatus), it is hard to understand what happened exactly.
The fact that they recover Smew sister to Hooded Merg with 100% support suggests they used d-loops from Donne-Goussé et al. 2002 ([pdf here], see Fig. 5A) -- the Smew sequence in this study is a Hooded Merg sequence...
The cyt-b sequences of Mergus spp. other than squamatus are presumably taken from Gonzalez et al. 2009 [pdf here], because these are the only ones found in GenBank for these species; but these are likely to have problems as well (the Red-breasted Merg and Goosander sequences are much more similar than would be expected based on other markers for which sequences are available for multiple individual (e.g., d-loop, cox1); the RB Merg sequence is low-quality -- not complete and many nucleotides not identified).
:eek!:

Thanks!
 
Warning! This thread is more than 7 years ago old.
It's likely that no further discussion is required, in which case we recommend starting a new thread. If however you feel your response is required you can still do so.

Users who are viewing this thread

Back
Top