Placental diversity in malagasy tenrecs

placentation in shrew tenrecs (Microgale spp.), the mole-like rice tenrec (Oryzorictes hova) and the web-footed tenrec (Limnogale mergulus)

A.C. Enders, T.N. Blankenship, S.M. Goodman, V. Soarimalala, Anthony M. Carter

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Resumé

 
Udgivelsesdato: 2007-Jul
OriginalsprogEngelsk
TidsskriftPlacenta
Vol/bind28
Udgave nummer7
Sider (fra-til)748-759
Antal sider11
ISSN0143-4004
DOI
StatusUdgivet - 1. jul. 2007

Fingeraftryk

Shrews
Placentation
Placenta
Yolk Sac
Oryza
Hova

Citer dette

@article{05a4b940d6f311dbbc51000ea68e967b,
title = "Placental diversity in malagasy tenrecs: placentation in shrew tenrecs (Microgale spp.), the mole-like rice tenrec (Oryzorictes hova) and the web-footed tenrec (Limnogale mergulus)",
abstract = "Placentation in tenrecs of the subfamily Oryzorictinae, family Tenrecidae, has not been described previously. The structure of the placenta of this group and especially of the genus Microgale was investigated to determine its similarity or dissimilarity to previously described placentas of the tenrec subfamilies Potamogalinae and Tenrecinae. Fifteen specimens of the genus Microgale ranging from an early yolk sac stage to near term were available for study. Placentation in Microgale was found to be different from other tenrecids in that there is an early simple lateral rather than central haemophagous region. In addition, a more villous portion of the placental disk forms before the formation of a more compact labyrinth. Although the definitive placenta is cellular haemomonochorial, it lacks the spongy zone found in the Tenrecinae. Neither does it resemble the endotheliochorial condition found in the Potamogalinae. Of the two genera of the subfamily Oryzorictinae represented by single specimens, the placenta of Limnogale resembled that of the Microgale but Oryzorictes had several differences including a lobulated placental disk. It is concluded that there is more variation in placentation both within the subfamily Oryzorictinae and within the family Tenrecidae than would ordinarily be expected",
keywords = "Animals, Female, Insectivora, Male, Placenta, Placentation, Pregnancy, Shrews",
author = "A.C. Enders and T.N. Blankenship and S.M. Goodman and V. Soarimalala and Carter, {Anthony M.}",
note = "Paper id:: PMID: 17113148 [PubMed - as supplied by publisher]",
year = "2007",
month = "7",
day = "1",
doi = "10.1016/j.placenta.2006.10.003",
language = "English",
volume = "28",
pages = "748--759",
journal = "Placenta",
issn = "0143-4004",
publisher = "Elsevier",
number = "7",

}

Placental diversity in malagasy tenrecs : placentation in shrew tenrecs (Microgale spp.), the mole-like rice tenrec (Oryzorictes hova) and the web-footed tenrec (Limnogale mergulus). / Enders, A.C.; Blankenship, T.N.; Goodman, S.M.; Soarimalala, V.; Carter, Anthony M.

I: Placenta, Bind 28, Nr. 7, 01.07.2007, s. 748-759.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

T1 - Placental diversity in malagasy tenrecs

T2 - placentation in shrew tenrecs (Microgale spp.), the mole-like rice tenrec (Oryzorictes hova) and the web-footed tenrec (Limnogale mergulus)

AU - Enders, A.C.

AU - Blankenship, T.N.

AU - Goodman, S.M.

AU - Soarimalala, V.

AU - Carter, Anthony M.

N1 - Paper id:: PMID: 17113148 [PubMed - as supplied by publisher]

PY - 2007/7/1

Y1 - 2007/7/1

N2 - Placentation in tenrecs of the subfamily Oryzorictinae, family Tenrecidae, has not been described previously. The structure of the placenta of this group and especially of the genus Microgale was investigated to determine its similarity or dissimilarity to previously described placentas of the tenrec subfamilies Potamogalinae and Tenrecinae. Fifteen specimens of the genus Microgale ranging from an early yolk sac stage to near term were available for study. Placentation in Microgale was found to be different from other tenrecids in that there is an early simple lateral rather than central haemophagous region. In addition, a more villous portion of the placental disk forms before the formation of a more compact labyrinth. Although the definitive placenta is cellular haemomonochorial, it lacks the spongy zone found in the Tenrecinae. Neither does it resemble the endotheliochorial condition found in the Potamogalinae. Of the two genera of the subfamily Oryzorictinae represented by single specimens, the placenta of Limnogale resembled that of the Microgale but Oryzorictes had several differences including a lobulated placental disk. It is concluded that there is more variation in placentation both within the subfamily Oryzorictinae and within the family Tenrecidae than would ordinarily be expected

AB - Placentation in tenrecs of the subfamily Oryzorictinae, family Tenrecidae, has not been described previously. The structure of the placenta of this group and especially of the genus Microgale was investigated to determine its similarity or dissimilarity to previously described placentas of the tenrec subfamilies Potamogalinae and Tenrecinae. Fifteen specimens of the genus Microgale ranging from an early yolk sac stage to near term were available for study. Placentation in Microgale was found to be different from other tenrecids in that there is an early simple lateral rather than central haemophagous region. In addition, a more villous portion of the placental disk forms before the formation of a more compact labyrinth. Although the definitive placenta is cellular haemomonochorial, it lacks the spongy zone found in the Tenrecinae. Neither does it resemble the endotheliochorial condition found in the Potamogalinae. Of the two genera of the subfamily Oryzorictinae represented by single specimens, the placenta of Limnogale resembled that of the Microgale but Oryzorictes had several differences including a lobulated placental disk. It is concluded that there is more variation in placentation both within the subfamily Oryzorictinae and within the family Tenrecidae than would ordinarily be expected

KW - Animals

KW - Female

KW - Insectivora

KW - Male

KW - Placenta

KW - Placentation

KW - Pregnancy

KW - Shrews

U2 - 10.1016/j.placenta.2006.10.003

DO - 10.1016/j.placenta.2006.10.003

M3 - Journal article

VL - 28

SP - 748

EP - 759

JO - Placenta

JF - Placenta

SN - 0143-4004

IS - 7

ER -