CHROMOSOME MORPHOLOGY AND NUMBER IN VARIOUS POPULATIONS OF HYDRILLA-VERTICILLATA (LF) ROYLE

被引：8

作者：

LANGELAND, KA ^{[1
]}

SHILLING, DG ^{[1
]}

CARTER, JL ^{[1
]}

LAROCHE, FB ^{[1
]}

STEWARD, KK ^{[1
]}

MADIERA, PT ^{[1
]}

机构：

[1] USDA ARS,AQUAT PLANT MANAGEMENT LAB,FT LAUDERDALE,FL 33314

来源：

AQUATIC BOTANY | 1992年 / 42卷 / 03期

关键词：

D O I：

10.1016/0304-3770(92)90026-F

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Hydrilla verticillata (L.f.) Royle root tip karyotypes were not different among 20 populations from Australia, China, India, Malaysia, Panama and the USA, and the combined karyotype derived from these populations was similar to that previously reported. Root tip tissue was sometimes endopolyploid, with diploid (2n = 2x = 16), triploid (2n = 3x = 24) and tetraploid (2n = 4x = 32) cells observed in the same populations, and diploid and triploid cells often observed in the same root tip. Diploid cells only were observed in root tips from a population of Panang Island. Hydrilla is probably diploid because diploid cells were observed in all populations (except Beijing, China, which was predominantly tetraploid). Therefore, there is no apparent reason why all populations should not be sexually compatible, and at least partially fertile, based on chromosome make-up.

引用

页码：253 / 263

页数：11

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