Abstract
A Drosophila FGF receptor homolog (DFGF-R2/DFRI) termed Heartless (Htl) is expressed in the embryonic mesoderm. The phenotypes of null mutant embryos demonstrated that Htl is a central player that is required for the development of several mesodermal lineages. No abnormalities in the primary specification of the mesoderm were observed. The first defects were seen as irregular migration and spreading of the mesoderm over the ectoderm. Subsequently, cell fates were not induced in several lineages including the visceral mesoderm, heart, and the dorsal somatic muscles. The defects in the induction of cell fates are likely to result from failure of the mesoderm to spread over the ectoderm and receive patterning signals. The defective spreading could be circumvented in htl mutant embryos by providing an ectopic Dpp patterning signal, leading to the formation of heart and dorsal muscle cells. Htl appears to be required also subsequently during the migration and morphogenesis of the different lineages. Expression of a dominant-negative htl construct after the initial induction of cell fates gave rise to aberrant migration and organization of the visceral mesoderm, heart, and somatic muscles. Thus, a common role for Htl in cell migration and tissue organization may account for the pleiotropic defects of the htl mutation.
References
42
Referenced
258
10.1016/0092-8674(91)90616-7
10.1101/gad.7.7b.1325
10.1242/dev.110.3.791
/ Development / The embryonic development of larval muscles in Drosophila. (1990){'key': '2021111418412879000_10.23.2993.4', 'first-page': '1047', 'article-title': 'Myogenesis and muscle patterning in Drosophila.', 'volume': '316', 'year': '1993', 'journal-title': 'C.R. Acad. Sci. III'}
/ C.R. Acad. Sci. III / Myogenesis and muscle patterning in Drosophila. (1993)10.1242/dev.121.11.3829
/ Development / wingless is required for the formation of a subset of muscle founder cells during Drosophila embryogenesis. (1995)10.1007/BF00376346
10.1093/genetics/131.2.365
/ Genetics / The Drosophila couch potato gene: An essential gene required for normal adult behavior. (1992)10.1038/330395a0
10.1101/gad.9.6.730
10.1242/dev.118.2.401
/ Development / Targeted gene expression as a means of altering cell fates and generating dominant phenotypes. (1993)10.1016/0092-8674(91)90183-Y
10.1101/gad.8.24.3045
10.1016/0092-8674(95)90101-9
10.1038/374464a0
10.1002/j.1460-2075.1996.tb00509.x
/ EMBO J. / Epidermal egr-like zinc finger protein of Drosophila participates in myotube guidance. (1996)10.1101/gad.5.4.697
10.1242/dev.120.9.2489
/ Development / Embryonic fat-cell lineage in Drosophila melanogaster. (1994)10.1101/gad.6.8.1518
10.1002/j.1460-2075.1994.tb06769.x
/ EMBO J. / eFGF regulates Xbra expression during Xenopus gastrulation. (1994)10.1016/0378-1119(94)90758-7
10.1101/gad.5.10.1881
10.1101/gad.6.9.1668
10.1242/dev.121.12.4303
/ Development / Segmental patterning of heart precursors in Drosophila. (1995)10.1101/gad.5.9.1568
10.1073/pnas.91.12.5662
10.1242/dev.121.8.2255
/ Development / The breathless FGF receptor homolog, a downstream target of Drosophila C/EBP in the developmental control of cell migration. (1995)10.1016/0092-8674(89)90682-X
10.1016/0092-8674(90)90288-P
10.1006/dbio.1996.0149
10.1016/0092-8674(87)90706-9
10.1101/gad.5.9.1577
10.1016/0925-4773(95)00407-R
10.1101/gad.8.4.428
10.1242/dev.121.12.3959
/ Development / Expression of a truncated FGF receptor results in defective lens development in transgenic mice. (1995)10.1242/dev.117.2.751
/ Development / Two FGF-receptor homologs of Drosophila: One is expressed in mesodermal primordium in early embryos. (1993)10.1016/0092-8674(92)90466-P
10.1038/372783a0
10.1002/j.1460-2075.1988.tb03056.x
/ EMBO J. / Sequence of the twist gene and nuclear localization of its protein in endomesodermal cells of early Drosophila embryos. (1988)10.1242/dev.120.1.59
/ Development / A central role for epidermal segment border cells in the induction of muscle patterning in the Drosophila embryo. (1994)10.1101/gad.8.24.3032
10.1006/dbio.1995.1173
10.1016/0248-4900(96)81314-1
Dates
Type | When |
---|---|
Created | 18 years, 2 months ago (June 5, 2007, 5:15 p.m.) |
Deposited | 3 years, 9 months ago (Nov. 14, 2021, 9:56 p.m.) |
Indexed | 3 months ago (May 26, 2025, 2:04 p.m.) |
Issued | 28 years, 9 months ago (Dec. 1, 1996) |
Published | 28 years, 9 months ago (Dec. 1, 1996) |
Published Online | 28 years, 9 months ago (Dec. 1, 1996) |
Published Print | 28 years, 9 months ago (Dec. 1, 1996) |
@article{Beiman_1996, title={Heartless, a Drosophila FGF receptor homolog, is essential for cell migration and establishment of several mesodermal lineages.}, volume={10}, ISSN={1549-5477}, url={http://dx.doi.org/10.1101/gad.10.23.2993}, DOI={10.1101/gad.10.23.2993}, number={23}, journal={Genes & Development}, publisher={Cold Spring Harbor Laboratory}, author={Beiman, M and Shilo, B Z and Volk, T}, year={1996}, month=dec, pages={2993–3002} }