EVOLUTION OF HOST RELATIONSHIPS IN THE GENUS ISOCOLUS-FORST (HYMENOPTERA, CYNIPIDAE) ON CENTAUREA (ASTERACEAE)

被引：8

作者：

BAUMANN, T

BRANDL, R

机构：

[1] UNIV BAYREUTH, LEHRSTRAHL TIEROKOL 1, POSTFACH 101251, W-8580 BAYREUTH, GERMANY

[2] UFZ HELMHOLTZ CTR ENVIRONM RES, OSA SEKT OKOSYST ANAL, W-7050 LEIPZIG, GERMANY

来源：

BIOCHEMICAL SYSTEMATICS AND ECOLOGY | 1993年 / 21卷 / 03期

关键词：

ISOCOLUS; CYNIPIDAE; CENTAUREA; ASTERACEAE; KNAPWEED; ALLOZYMES; MORPHOMETRY; HOST SHIFT; NICHE SHIFT; COSPECIATION;

D O I：

10.1016/0305-1978(93)90025-M

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

We investigated the systematics of the genus Isocolus Forst. (gall wasps) attacking mainly flower heads of the host genus Centaurea (Cardueae, Centaureinae). Biochemical and morphometrical techniques provided similar results. Within the genus Isocolus we found two major groups of species attacking two well separated lineages of Centaurea species. This major division within the genus Isocolus may be explained by a scenario of cospeciation. But within each Isocolus group host relationships are more likely caused by niche shifts to different plant structure and host transfers. A general analysis of genetic distances of gall forming insects on thistles and their hosts suggests that cospeciation is rare.

引用

页码：341 / 349

页数：9

共 34 条

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